]> git.ipfire.org Git - thirdparty/openssh-portable.git/commitdiff
cherry-pick
authorDamien Miller <djm@mindrot.org>
Fri, 4 Feb 2011 00:42:11 +0000 (11:42 +1100)
committerDamien Miller <djm@mindrot.org>
Fri, 4 Feb 2011 00:42:11 +0000 (11:42 +1100)
20110125
 - (djm) [configure.ac Makefile.in ssh.c openbsd-compat/port-linux.c
   openbsd-compat/port-linux.h] Move SELinux-specific code from ssh.c to
   port-linux.c to avoid compilation errors. Add -lselinux to ssh when
   building with SELinux support to avoid linking failure; report from
   amk AT spamfence.net; ok dtucker

ChangeLog
Makefile.in
configure.ac
openbsd-compat/port-linux.c
openbsd-compat/port-linux.h

index a69ed9fdeee9bc0bc7702bdc13b7837ba8fb6359..6d2375a3376a47d398f98fc82eb3ce53eb0ae84f 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,17 +1,3 @@
-20110128
- - (djm) [openbsd-compat/port-linux.c] Check whether SELinux is enabled
-   before attempting setfscreatecon(). Check whether matchpathcon()
-   succeeded before using its result. Patch from cjwatson AT debian.org;
-   bz#1851
-
-20110127
- - (tim) [config.guess config.sub] Sync with upstream.
- - (tim) [configure.ac] Consistent M4 quoting throughout, updated obsolete
-   AC_TRY_COMPILE with AC_COMPILE_IFELSE, updated obsolete AC_TRY_LINK with
-   AC_LINK_IFELSE, updated obsolete AC_TRY_RUN with AC_RUN_IFELSE, misc white
-   space changes for consistency/readability. Makes autoconf 2.68 happy.
-   "Nice work" djm
-
 20110125
  - (djm) [configure.ac Makefile.in ssh.c openbsd-compat/port-linux.c
    openbsd-compat/port-linux.h] Move SELinux-specific code from ssh.c to
index d0263779b01037e5b8ff72abe4b2e95f49be5cf7..870a7f18d7eae91a8a25c8b31f5b89666c1f551c 100644 (file)
@@ -1,4 +1,4 @@
-# $Id: Makefile.in,v 1.321 2011/01/25 01:16:16 djm Exp $
+# $Id: Makefile.in,v 1.320.4.1 2011/02/04 00:42:13 djm Exp $
 
 # uncomment if you run a non bourne compatable shell. Ie. csh
 #SHELL = @SH@
index c8d90ea0dfe0850f2b0f4b063dd74e02fa53c564..f23784d9b5babd4507d9d1ff05c2dcefef973aef 100644 (file)
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.471 2011/01/26 20:38:58 tim Exp $
+# $Id: configure.ac,v 1.469.4.1 2011/02/04 00:42:14 djm Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-AC_INIT([OpenSSH], [Portable], [openssh-unix-dev@mindrot.org])
-AC_REVISION($Revision: 1.471 $)
+AC_INIT(OpenSSH, Portable, openssh-unix-dev@mindrot.org)
+AC_REVISION($Revision: 1.469.4.1 $)
 AC_CONFIG_SRCDIR([ssh.c])
-AC_LANG([C])
 
 # local macros
 AC_DEFUN([OPENSSH_CHECK_CFLAG_COMPILE], [{
@@ -25,13 +24,13 @@ AC_DEFUN([OPENSSH_CHECK_CFLAG_COMPILE], [{
        saved_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $1"
        AC_COMPILE_IFELSE([void main(void) { return 0; }],
-               [ AC_MSG_RESULT([yes]) ],
-               [ AC_MSG_RESULT([no])
+               [ AC_MSG_RESULT(yes) ],
+               [ AC_MSG_RESULT(no)
                  CFLAGS="$saved_CFLAGS" ]
        )
 }])
 
-AC_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADER(config.h)
 AC_PROG_CC
 AC_CANONICAL_HOST
 AC_C_BIGENDIAN
@@ -42,22 +41,22 @@ AC_PROG_CPP
 AC_PROG_RANLIB
 AC_PROG_INSTALL
 AC_PROG_EGREP
-AC_PATH_PROG([AR], [ar])
-AC_PATH_PROG([CAT], [cat])
-AC_PATH_PROG([KILL], [kill])
-AC_PATH_PROGS([PERL], [perl5 perl])
-AC_PATH_PROG([SED], [sed])
-AC_SUBST([PERL])
-AC_PATH_PROG([ENT], [ent])
-AC_SUBST([ENT])
-AC_PATH_PROG([TEST_MINUS_S_SH], [bash])
-AC_PATH_PROG([TEST_MINUS_S_SH], [ksh])
-AC_PATH_PROG([TEST_MINUS_S_SH], [sh])
-AC_PATH_PROG([SH], [sh])
-AC_PATH_PROG([GROFF], [groff])
-AC_PATH_PROG([NROFF], [nroff])
-AC_PATH_PROG([MANDOC], [mandoc])
-AC_SUBST([TEST_SHELL], [sh])
+AC_PATH_PROG(AR, ar)
+AC_PATH_PROG(CAT, cat)
+AC_PATH_PROG(KILL, kill)
+AC_PATH_PROGS(PERL, perl5 perl)
+AC_PATH_PROG(SED, sed)
+AC_SUBST(PERL)
+AC_PATH_PROG(ENT, ent)
+AC_SUBST(ENT)
+AC_PATH_PROG(TEST_MINUS_S_SH, bash)
+AC_PATH_PROG(TEST_MINUS_S_SH, ksh)
+AC_PATH_PROG(TEST_MINUS_S_SH, sh)
+AC_PATH_PROG(SH, sh)
+AC_PATH_PROG(GROFF, groff)
+AC_PATH_PROG(NROFF, nroff)
+AC_PATH_PROG(MANDOC, mandoc)
+AC_SUBST(TEST_SHELL,sh)
 
 dnl select manpage formatter
 if test "x$MANDOC" != "x" ; then
@@ -70,18 +69,18 @@ else
        AC_MSG_WARN([no manpage formatted found])
        MANFMT="false"
 fi
-AC_SUBST([MANFMT])
+AC_SUBST(MANFMT)
 
 dnl for buildpkg.sh
-AC_PATH_PROG([PATH_GROUPADD_PROG], [groupadd], [groupadd],
+AC_PATH_PROG(PATH_GROUPADD_PROG, groupadd, groupadd,
        [/usr/sbin${PATH_SEPARATOR}/etc])
-AC_PATH_PROG([PATH_USERADD_PROG], [useradd], [useradd],
+AC_PATH_PROG(PATH_USERADD_PROG, useradd, useradd,
        [/usr/sbin${PATH_SEPARATOR}/etc])
-AC_CHECK_PROG([MAKE_PACKAGE_SUPPORTED], [pkgmk], [yes], [no])
+AC_CHECK_PROG(MAKE_PACKAGE_SUPPORTED, pkgmk, yes, no)
 if test -x /sbin/sh; then
-       AC_SUBST([STARTUP_SCRIPT_SHELL], [/sbin/sh])
+       AC_SUBST(STARTUP_SCRIPT_SHELL,/sbin/sh)
 else
-       AC_SUBST([STARTUP_SCRIPT_SHELL], [/bin/sh])
+       AC_SUBST(STARTUP_SCRIPT_SHELL,/bin/sh)
 fi
 
 # System features
@@ -93,34 +92,34 @@ fi
 
 # Use LOGIN_PROGRAM from environment if possible
 if test ! -z "$LOGIN_PROGRAM" ; then
-       AC_DEFINE_UNQUOTED([LOGIN_PROGRAM_FALLBACK], ["$LOGIN_PROGRAM"],
+       AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM",
                [If your header files don't define LOGIN_PROGRAM,
                then use this (detected) from environment and PATH])
 else
        # Search for login
-       AC_PATH_PROG([LOGIN_PROGRAM_FALLBACK], [login])
+       AC_PATH_PROG(LOGIN_PROGRAM_FALLBACK, login)
        if test ! -z "$LOGIN_PROGRAM_FALLBACK" ; then
-               AC_DEFINE_UNQUOTED([LOGIN_PROGRAM_FALLBACK], ["$LOGIN_PROGRAM_FALLBACK"])
+               AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM_FALLBACK")
        fi
 fi
 
-AC_PATH_PROG([PATH_PASSWD_PROG], [passwd])
+AC_PATH_PROG(PATH_PASSWD_PROG, passwd)
 if test ! -z "$PATH_PASSWD_PROG" ; then
-       AC_DEFINE_UNQUOTED([_PATH_PASSWD_PROG], ["$PATH_PASSWD_PROG"],
+       AC_DEFINE_UNQUOTED(_PATH_PASSWD_PROG, "$PATH_PASSWD_PROG",
                [Full path of your "passwd" program])
 fi
 
 if test -z "$LD" ; then
        LD=$CC
 fi
-AC_SUBST([LD])
+AC_SUBST(LD)
 
 AC_C_INLINE
 
-AC_CHECK_DECL([LLONG_MAX], [have_llong_max=1], , [#include <limits.h>])
+AC_CHECK_DECL(LLONG_MAX, have_llong_max=1, , [#include <limits.h>])
 
 use_stack_protector=1
-AC_ARG_WITH([stackprotect],
+AC_ARG_WITH(stackprotect,
     [  --without-stackprotect  Don't use compiler's stack protection], [
     if test "x$withval" = "xno"; then
        use_stack_protector=0
@@ -136,7 +135,7 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
        OPENSSH_CHECK_CFLAG_COMPILE([-Wno-pointer-sign])
        OPENSSH_CHECK_CFLAG_COMPILE([-Wno-unused-result])
        OPENSSH_CHECK_CFLAG_COMPILE([-fno-strict-aliasing])
-       AC_MSG_CHECKING([gcc version])
+       AC_MSG_CHECKING(gcc version)
        GCC_VER=`$CC -v 2>&1 | $AWK '/gcc version /{print $3}'`
        case $GCC_VER in
                1.*) no_attrib_nonnull=1 ;;
@@ -146,52 +145,52 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
                2.*) no_attrib_nonnull=1 ;;
                *) ;;
        esac
-       AC_MSG_RESULT([$GCC_VER])
+       AC_MSG_RESULT($GCC_VER)
 
-       AC_MSG_CHECKING([if $CC accepts -fno-builtin-memset])
+       AC_MSG_CHECKING(if $CC accepts -fno-builtin-memset)
        saved_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS -fno-builtin-memset"
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <string.h> ]],
-                       [[ char b[10]; memset(b, 0, sizeof(b)); ]])],
-               [ AC_MSG_RESULT([yes]) ],
-               [ AC_MSG_RESULT([no])
+       AC_LINK_IFELSE( [AC_LANG_SOURCE([[
+#include <string.h>
+int main(void){char b[10]; memset(b, 0, sizeof(b));}
+               ]])],
+               [ AC_MSG_RESULT(yes) ],
+               [ AC_MSG_RESULT(no)
                  CFLAGS="$saved_CFLAGS" ]
-       )
+)
 
        # -fstack-protector-all doesn't always work for some GCC versions
        # and/or platforms, so we test if we can.  If it's not supported
        # on a given platform gcc will emit a warning so we use -Werror.
        if test "x$use_stack_protector" = "x1"; then
            for t in -fstack-protector-all -fstack-protector; do
-               AC_MSG_CHECKING([if $CC supports $t])
+               AC_MSG_CHECKING(if $CC supports $t)
                saved_CFLAGS="$CFLAGS"
                saved_LDFLAGS="$LDFLAGS"
                CFLAGS="$CFLAGS $t -Werror"
                LDFLAGS="$LDFLAGS $t -Werror"
                AC_LINK_IFELSE(
-                       [AC_LANG_PROGRAM([[ #include <stdio.h> ]],
-                       [[
-       char x[256];
-       snprintf(x, sizeof(x), "XXX");
-                        ]])],
-                   [ AC_MSG_RESULT([yes])
+                       [AC_LANG_SOURCE([
+#include <stdio.h>
+int main(void){char x[[256]]; snprintf(x, sizeof(x), "XXX"); return 0;}
+                        ])],
+                   [ AC_MSG_RESULT(yes)
                      CFLAGS="$saved_CFLAGS $t"
                      LDFLAGS="$saved_LDFLAGS $t"
-                     AC_MSG_CHECKING([if $t works])
+                     AC_MSG_CHECKING(if $t works)
                      AC_RUN_IFELSE(
-                       [AC_LANG_PROGRAM([[ #include <stdio.h> ]],
-                       [[
-       char x[256];
-       snprintf(x, sizeof(x), "XXX");
-                       ]])],
-                       [ AC_MSG_RESULT([yes])
+                       [AC_LANG_SOURCE([
+#include <stdio.h>
+int main(void){char x[[256]]; snprintf(x, sizeof(x), "XXX"); return 0;}
+                       ])],
+                       [ AC_MSG_RESULT(yes)
                          break ],
-                       [ AC_MSG_RESULT([no]) ],
+                       [ AC_MSG_RESULT(no) ],
                        [ AC_MSG_WARN([cross compiling: cannot test])
                          break ]
                      )
                    ],
-                   [ AC_MSG_RESULT([no]) ]
+                   [ AC_MSG_RESULT(no) ]
                )
                CFLAGS="$saved_CFLAGS"
                LDFLAGS="$saved_LDFLAGS"
@@ -203,7 +202,7 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
                unset ac_cv_have_decl_LLONG_MAX
                saved_CFLAGS="$CFLAGS"
                CFLAGS="$CFLAGS -std=gnu99"
-               AC_CHECK_DECL([LLONG_MAX],
+               AC_CHECK_DECL(LLONG_MAX,
                    [have_llong_max=1],
                    [CFLAGS="$saved_CFLAGS"],
                    [#include <limits.h>]
@@ -212,10 +211,10 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
 fi
 
 if test "x$no_attrib_nonnull" != "x1" ; then
-       AC_DEFINE([HAVE_ATTRIBUTE__NONNULL__], [1], [Have attribute nonnull])
+       AC_DEFINE(HAVE_ATTRIBUTE__NONNULL__, 1, [Have attribute nonnull])
 fi
 
-AC_ARG_WITH([rpath],
+AC_ARG_WITH(rpath,
        [  --without-rpath         Disable auto-added -R linker paths],
        [
                if test "x$withval" = "xno" ; then
@@ -228,7 +227,7 @@ AC_ARG_WITH([rpath],
 )
 
 # Allow user to specify flags
-AC_ARG_WITH([cflags],
+AC_ARG_WITH(cflags,
        [  --with-cflags           Specify additional flags to pass to compiler],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -237,7 +236,7 @@ AC_ARG_WITH([cflags],
                fi
        ]
 )
-AC_ARG_WITH([cppflags],
+AC_ARG_WITH(cppflags,
        [  --with-cppflags         Specify additional flags to pass to preprocessor] ,
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -246,7 +245,7 @@ AC_ARG_WITH([cppflags],
                fi
        ]
 )
-AC_ARG_WITH([ldflags],
+AC_ARG_WITH(ldflags,
        [  --with-ldflags          Specify additional flags to pass to linker],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -255,7 +254,7 @@ AC_ARG_WITH([ldflags],
                fi
        ]
 )
-AC_ARG_WITH([libs],
+AC_ARG_WITH(libs,
        [  --with-libs             Specify additional libraries to link with],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -264,7 +263,7 @@ AC_ARG_WITH([libs],
                fi
        ]
 )
-AC_ARG_WITH([Werror],
+AC_ARG_WITH(Werror,
        [  --with-Werror           Build main code with -Werror],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"; then
@@ -276,7 +275,7 @@ AC_ARG_WITH([Werror],
        ]
 )
 
-AC_CHECK_HEADERS([ \
+AC_CHECK_HEADERS( \
        bstring.h \
        crypt.h \
        crypto/sha2.h \
@@ -340,29 +339,29 @@ AC_CHECK_HEADERS([ \
        utmp.h \
        utmpx.h \
        vis.h \
-])
+)
 
 # lastlog.h requires sys/time.h to be included first on Solaris
-AC_CHECK_HEADERS([lastlog.h], [], [], [
+AC_CHECK_HEADERS(lastlog.h, [], [], [
 #ifdef HAVE_SYS_TIME_H
 # include <sys/time.h>
 #endif
 ])
 
 # sys/ptms.h requires sys/stream.h to be included first on Solaris
-AC_CHECK_HEADERS([sys/ptms.h], [], [], [
+AC_CHECK_HEADERS(sys/ptms.h, [], [], [
 #ifdef HAVE_SYS_STREAM_H
 # include <sys/stream.h>
 #endif
 ])
 
 # login_cap.h requires sys/types.h on NetBSD
-AC_CHECK_HEADERS([login_cap.h], [], [], [
+AC_CHECK_HEADERS(login_cap.h, [], [], [
 #include <sys/types.h>
 ])
 
 # older BSDs need sys/param.h before sys/mount.h
-AC_CHECK_HEADERS([sys/mount.h], [], [], [
+AC_CHECK_HEADERS(sys/mount.h, [], [], [
 #include <sys/param.h>
 ])
 
@@ -379,14 +378,15 @@ case "$host" in
        # particularly with older versions of vac or xlc.
        # It also throws errors about null macro argments, but these are
        # not fatal.
-       AC_MSG_CHECKING([if compiler allows macro redefinitions])
+       AC_MSG_CHECKING(if compiler allows macro redefinitions)
        AC_COMPILE_IFELSE(
-           [AC_LANG_PROGRAM([[
+           [AC_LANG_SOURCE([[
 #define testmacro foo
-#define testmacro bar]],
-           [[ exit(0); ]])],
-           [ AC_MSG_RESULT([yes]) ],
-           [ AC_MSG_RESULT([no])
+#define testmacro bar
+int main(void) { exit(0); }
+           ]])],
+           [ AC_MSG_RESULT(yes) ],
+           [ AC_MSG_RESULT(no)
              CC="`echo $CC | sed 's/-qlanglvl\=ansi//g'`"
              LD="`echo $LD | sed 's/-qlanglvl\=ansi//g'`"
              CFLAGS="`echo $CFLAGS | sed 's/-qlanglvl\=ansi//g'`"
@@ -407,22 +407,21 @@ case "$host" in
        for tryflags in $flags ;do
                if (test -z "$blibflags"); then
                        LDFLAGS="$saved_LDFLAGS $tryflags$blibpath"
-                       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
-                       [blibflags=$tryflags], [])
+                       AC_TRY_LINK([], [], [blibflags=$tryflags])
                fi
        done
        if (test -z "$blibflags"); then
-               AC_MSG_RESULT([not found])
+               AC_MSG_RESULT(not found)
                AC_MSG_ERROR([*** must be able to specify blibpath on AIX - check config.log])
        else
-               AC_MSG_RESULT([$blibflags])
+               AC_MSG_RESULT($blibflags)
        fi
        LDFLAGS="$saved_LDFLAGS"
        dnl Check for authenticate.  Might be in libs.a on older AIXes
-       AC_CHECK_FUNC([authenticate], [AC_DEFINE([WITH_AIXAUTHENTICATE], [1],
+       AC_CHECK_FUNC(authenticate, [AC_DEFINE(WITH_AIXAUTHENTICATE, 1,
                [Define if you want to enable AIX4's authenticate function])],
-               [AC_CHECK_LIB([s], [authenticate],
-                       [ AC_DEFINE([WITH_AIXAUTHENTICATE])
+               [AC_CHECK_LIB(s,authenticate,
+                       [ AC_DEFINE(WITH_AIXAUTHENTICATE)
                                LIBS="$LIBS -ls"
                        ])
                ])
@@ -430,98 +429,96 @@ case "$host" in
        AC_CHECK_DECLS([authenticate, loginrestrictions, loginsuccess,
            passwdexpired, setauthdb], , , [#include <usersec.h>])
        dnl Check if loginfailed is declared and takes 4 arguments (AIX >= 5.2)
-       AC_CHECK_DECLS([loginfailed],
-           [AC_MSG_CHECKING([if loginfailed takes 4 arguments])
-           AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <usersec.h> ]],
-               [[ (void)loginfailed("user","host","tty",0); ]])],
-               [AC_MSG_RESULT([yes])
-               AC_DEFINE([AIX_LOGINFAILED_4ARG], [1],
-                       [Define if your AIX loginfailed() function
-                       takes 4 arguments (AIX >= 5.2)])], [AC_MSG_RESULT([no])
-           ])],
-           [],
-           [#include <usersec.h>]
+       AC_CHECK_DECLS(loginfailed,
+                [AC_MSG_CHECKING(if loginfailed takes 4 arguments)
+                 AC_TRY_COMPILE(
+                       [#include <usersec.h>],
+                       [(void)loginfailed("user","host","tty",0);],
+                       [AC_MSG_RESULT(yes)
+                        AC_DEFINE(AIX_LOGINFAILED_4ARG, 1,
+                               [Define if your AIX loginfailed() function
+                               takes 4 arguments (AIX >= 5.2)])],
+                       [AC_MSG_RESULT(no)]
+               )],
+               [],
+               [#include <usersec.h>]
        )
-       AC_CHECK_FUNCS([getgrset setauthdb])
-       AC_CHECK_DECL([F_CLOSEM],
-           AC_DEFINE([HAVE_FCNTL_CLOSEM], [1], [Use F_CLOSEM fcntl for closefrom]),
+       AC_CHECK_FUNCS(getgrset setauthdb)
+       AC_CHECK_DECL(F_CLOSEM,
+           AC_DEFINE(HAVE_FCNTL_CLOSEM, 1, [Use F_CLOSEM fcntl for closefrom]),
            [],
            [ #include <limits.h>
              #include <fcntl.h> ]
        )
        check_for_aix_broken_getaddrinfo=1
-       AC_DEFINE([BROKEN_REALPATH], [1], [Define if you have a broken realpath.])
-       AC_DEFINE([SETEUID_BREAKS_SETUID], [1],
+       AC_DEFINE(BROKEN_REALPATH, 1, [Define if you have a broken realpath.])
+       AC_DEFINE(SETEUID_BREAKS_SETUID, 1,
            [Define if your platform breaks doing a seteuid before a setuid])
-       AC_DEFINE([BROKEN_SETREUID], [1], [Define if your setreuid() is broken])
-       AC_DEFINE([BROKEN_SETREGID], [1], [Define if your setregid() is broken])
+       AC_DEFINE(BROKEN_SETREUID, 1, [Define if your setreuid() is broken])
+       AC_DEFINE(BROKEN_SETREGID, 1, [Define if your setregid() is broken])
        dnl AIX handles lastlog as part of its login message
-       AC_DEFINE([DISABLE_LASTLOG], [1], [Define if you don't want to use lastlog])
-       AC_DEFINE([LOGIN_NEEDS_UTMPX], [1],
+       AC_DEFINE(DISABLE_LASTLOG, 1, [Define if you don't want to use lastlog])
+       AC_DEFINE(LOGIN_NEEDS_UTMPX, 1,
                [Some systems need a utmpx entry for /bin/login to work])
-       AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV],
+       AC_DEFINE(SPT_TYPE,SPT_REUSEARGV,
                [Define to a Set Process Title type if your system is
                supported by bsd-setproctitle.c])
-       AC_DEFINE([SSHPAM_CHAUTHTOK_NEEDS_RUID], [1],
+       AC_DEFINE(SSHPAM_CHAUTHTOK_NEEDS_RUID, 1,
            [AIX 5.2 and 5.3 (and presumably newer) require this])
-       AC_DEFINE([PTY_ZEROREAD], [1], [read(1) can return 0 for a non-closed fd])
+       AC_DEFINE(PTY_ZEROREAD, 1, [read(1) can return 0 for a non-closed fd])
        ;;
 *-*-cygwin*)
        check_for_libcrypt_later=1
        LIBS="$LIBS /usr/lib/textreadmode.o"
-       AC_DEFINE([HAVE_CYGWIN], [1], [Define if you are on Cygwin])
-       AC_DEFINE([USE_PIPES], [1], [Use PIPES instead of a socketpair()])
-       AC_DEFINE([DISABLE_SHADOW], [1],
+       AC_DEFINE(HAVE_CYGWIN, 1, [Define if you are on Cygwin])
+       AC_DEFINE(USE_PIPES, 1, [Use PIPES instead of a socketpair()])
+       AC_DEFINE(DISABLE_SHADOW, 1,
                [Define if you want to disable shadow passwords])
-       AC_DEFINE([NO_X11_UNIX_SOCKETS], [1],
+       AC_DEFINE(NO_X11_UNIX_SOCKETS, 1,
                [Define if X11 doesn't support AF_UNIX sockets on that system])
-       AC_DEFINE([NO_IPPORT_RESERVED_CONCEPT], [1],
+       AC_DEFINE(NO_IPPORT_RESERVED_CONCEPT, 1,
                [Define if the concept of ports only accessible to
                superusers isn't known])
-       AC_DEFINE([DISABLE_FD_PASSING], [1],
+       AC_DEFINE(DISABLE_FD_PASSING, 1,
                [Define if your platform needs to skip post auth
                file descriptor passing])
-       AC_DEFINE([SSH_IOBUFSZ], [65535], [Windows is sensitive to read buffer size])
-       AC_DEFINE([FILESYSTEM_NO_BACKSLASH], [1], [File names may not contain backslash characters]) 
+       AC_DEFINE(SSH_IOBUFSZ, 65535, [Windows is sensitive to read buffer size])
+       AC_DEFINE(FILESYSTEM_NO_BACKSLASH, 1, [File names may not contain backslash characters]) 
        ;;
 *-*-dgux*)
-       AC_DEFINE([IP_TOS_IS_BROKEN], [1],
+       AC_DEFINE(IP_TOS_IS_BROKEN, 1,
                [Define if your system choked on IP TOS setting])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
        ;;
 *-*-darwin*)
-       AC_MSG_CHECKING([if we have working getaddrinfo])
-       AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include <mach-o/dyld.h>
+       AC_MSG_CHECKING(if we have working getaddrinfo)
+       AC_TRY_RUN([#include <mach-o/dyld.h>
 main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
                exit(0);
        else
                exit(1);
-}
-                       ]])],
-       [AC_MSG_RESULT([working])],
-       [AC_MSG_RESULT([buggy])
-       AC_DEFINE([BROKEN_GETADDRINFO], [1],
-               [getaddrinfo is broken (if present)])
-       ],
-       [AC_MSG_RESULT([assume it is working])])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([BROKEN_GLOB], [1], [OS X glob does not do what we expect])
-       AC_DEFINE_UNQUOTED([BIND_8_COMPAT], [1],
+}], [AC_MSG_RESULT(working)],
+       [AC_MSG_RESULT(buggy)
+       AC_DEFINE(BROKEN_GETADDRINFO, 1, [getaddrinfo is broken (if present)])],
+       [AC_MSG_RESULT(assume it is working)])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(BROKEN_GLOB, 1, [OS X glob does not do what we expect])
+       AC_DEFINE_UNQUOTED(BIND_8_COMPAT, 1,
                [Define if your resolver libs need this for getrrsetbyname])
-       AC_DEFINE([SSH_TUN_FREEBSD], [1], [Open tunnel devices the FreeBSD way])
-       AC_DEFINE([SSH_TUN_COMPAT_AF], [1],
+       AC_DEFINE(SSH_TUN_FREEBSD, 1, [Open tunnel devices the FreeBSD way])
+       AC_DEFINE(SSH_TUN_COMPAT_AF, 1,
            [Use tunnel device compatibility to OpenBSD])
-       AC_DEFINE([SSH_TUN_PREPEND_AF], [1],
+       AC_DEFINE(SSH_TUN_PREPEND_AF, 1,
            [Prepend the address family to IP tunnel traffic])
-       m4_pattern_allow([AU_IPv])
-       AC_CHECK_DECL([AU_IPv4], [], 
-           AC_DEFINE([AU_IPv4], [0], [System only supports IPv4 audit records])
+       m4_pattern_allow(AU_IPv)
+       AC_CHECK_DECL(AU_IPv4, [], 
+           AC_DEFINE(AU_IPv4, 0, [System only supports IPv4 audit records])
            [#include <bsm/audit.h>]
-       AC_DEFINE([LASTLOG_WRITE_PUTUTXLINE], [1],
+       AC_DEFINE(LASTLOG_WRITE_PUTUTXLINE, 1,
            [Define if pututxline updates lastlog too])
        )
        ;;
@@ -530,25 +527,25 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
        ;;
 *-*-haiku*) 
     LIBS="$LIBS -lbsd "
-    AC_CHECK_LIB([network], [socket])
-    AC_DEFINE([HAVE_U_INT64_T])
+    AC_CHECK_LIB(network, socket)
+    AC_DEFINE(HAVE_U_INT64_T)
     MANTYPE=man 
     ;; 
 *-*-hpux*)
        # first we define all of the options common to all HP-UX releases
        CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
        IPADDR_IN_DISPLAY=yes
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([LOGIN_NO_ENDOPT], [1],
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(LOGIN_NO_ENDOPT, 1,
            [Define if your login program cannot handle end of options ("--")])
-       AC_DEFINE([LOGIN_NEEDS_UTMPX])
-       AC_DEFINE([LOCKED_PASSWD_STRING], ["*"],
+       AC_DEFINE(LOGIN_NEEDS_UTMPX)
+       AC_DEFINE(LOCKED_PASSWD_STRING, "*",
                [String used in /etc/passwd to denote locked account])
-       AC_DEFINE([SPT_TYPE], [SPT_PSTAT])
+       AC_DEFINE(SPT_TYPE,SPT_PSTAT)
        MAIL="/var/mail/username"
        LIBS="$LIBS -lsec"
-       AC_CHECK_LIB([xnet], [t_error], ,
-           [AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***])])
+       AC_CHECK_LIB(xnet, t_error, ,
+           AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 
        # next, we define all of the options specific to major releases
        case "$host" in
@@ -558,13 +555,13 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
                fi
                ;;
        *-*-hpux11*)
-               AC_DEFINE([PAM_SUN_CODEBASE], [1],
+               AC_DEFINE(PAM_SUN_CODEBASE, 1,
                        [Define if you are using Solaris-derived PAM which
                        passes pam_messages to the conversation function
                        with an extra level of indirection])
-               AC_DEFINE([DISABLE_UTMP], [1],
+               AC_DEFINE(DISABLE_UTMP, 1,
                        [Define if you don't want to use utmp])
-               AC_DEFINE([USE_BTMP], [1], [Use btmp to log bad logins])
+               AC_DEFINE(USE_BTMP, 1, [Use btmp to log bad logins])
                check_for_hpux_broken_getaddrinfo=1
                check_for_conflicting_getspnam=1
                ;;
@@ -573,7 +570,7 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
        # lastly, we define options specific to minor releases
        case "$host" in
        *-*-hpux10.26)
-               AC_DEFINE([HAVE_SECUREWARE], [1],
+               AC_DEFINE(HAVE_SECUREWARE, 1,
                        [Define if you have SecureWare-based
                        protected password database])
                disable_ptmx_check=yes
@@ -583,79 +580,79 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
        ;;
 *-*-irix5*)
        PATH="$PATH:/usr/etc"
-       AC_DEFINE([BROKEN_INET_NTOA], [1],
+       AC_DEFINE(BROKEN_INET_NTOA, 1,
                [Define if you system's inet_ntoa is busted
                (e.g. Irix gcc issue)])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([WITH_ABBREV_NO_TTY], [1],
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(WITH_ABBREV_NO_TTY, 1,
                [Define if you shouldn't strip 'tty' from your
                ttyname in [uw]tmp])
-       AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"])
+       AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
        ;;
 *-*-irix6*)
        PATH="$PATH:/usr/etc"
-       AC_DEFINE([WITH_IRIX_ARRAY], [1],
+       AC_DEFINE(WITH_IRIX_ARRAY, 1,
                [Define if you have/want arrays
                (cluster-wide session managment, not C arrays)])
-       AC_DEFINE([WITH_IRIX_PROJECT], [1],
+       AC_DEFINE(WITH_IRIX_PROJECT, 1,
                [Define if you want IRIX project management])
-       AC_DEFINE([WITH_IRIX_AUDIT], [1],
+       AC_DEFINE(WITH_IRIX_AUDIT, 1,
                [Define if you want IRIX audit trails])
-       AC_CHECK_FUNC([jlimit_startjob], [AC_DEFINE([WITH_IRIX_JOBS], [1],
+       AC_CHECK_FUNC(jlimit_startjob, [AC_DEFINE(WITH_IRIX_JOBS, 1,
                [Define if you want IRIX kernel jobs])])
-       AC_DEFINE([BROKEN_INET_NTOA])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([BROKEN_UPDWTMPX], [1], [updwtmpx is broken (if present)])
-       AC_DEFINE([WITH_ABBREV_NO_TTY])
-       AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"])
+       AC_DEFINE(BROKEN_INET_NTOA)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(BROKEN_UPDWTMPX, 1, [updwtmpx is broken (if present)])
+       AC_DEFINE(WITH_ABBREV_NO_TTY)
+       AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
        ;;
 *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
        check_for_libcrypt_later=1
-       AC_DEFINE([PAM_TTY_KLUDGE])
-       AC_DEFINE([LOCKED_PASSWD_PREFIX], ["!"])
-       AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
-       AC_DEFINE([_PATH_BTMP], ["/var/log/btmp"], [log for bad login attempts])
-       AC_DEFINE([USE_BTMP], [1], [Use btmp to log bad logins])
+       AC_DEFINE(PAM_TTY_KLUDGE)
+       AC_DEFINE(LOCKED_PASSWD_PREFIX, "!")
+       AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
+       AC_DEFINE(_PATH_BTMP, "/var/log/btmp", [log for bad login attempts])
+       AC_DEFINE(USE_BTMP, 1, [Use btmp to log bad logins])
        ;;
 *-*-linux*)
        no_dev_ptmx=1
        check_for_libcrypt_later=1
        check_for_openpty_ctty_bug=1
-       AC_DEFINE([PAM_TTY_KLUDGE], [1],
+       AC_DEFINE(PAM_TTY_KLUDGE, 1,
                [Work around problematic Linux PAM modules handling of PAM_TTY])
-       AC_DEFINE([LOCKED_PASSWD_PREFIX], ["!"],
+       AC_DEFINE(LOCKED_PASSWD_PREFIX, "!",
                [String used in /etc/passwd to denote locked account])
-       AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
-       AC_DEFINE([LINK_OPNOTSUPP_ERRNO], [EPERM],
+       AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
+       AC_DEFINE(LINK_OPNOTSUPP_ERRNO, EPERM,
                [Define to whatever link() returns for "not supported"
                if it doesn't return EOPNOTSUPP.])
-       AC_DEFINE([_PATH_BTMP], ["/var/log/btmp"], [log for bad login attempts])
-       AC_DEFINE([USE_BTMP])
-       AC_DEFINE([LINUX_OOM_ADJUST], [1], [Adjust Linux out-of-memory killer])
+       AC_DEFINE(_PATH_BTMP, "/var/log/btmp", [log for bad login attempts])
+       AC_DEFINE(USE_BTMP)
+       AC_DEFINE(LINUX_OOM_ADJUST, 1, [Adjust Linux out-of-memory killer])
        inet6_default_4in6=yes
        case `uname -r` in
        1.*|2.0.*)
-               AC_DEFINE([BROKEN_CMSG_TYPE], [1],
+               AC_DEFINE(BROKEN_CMSG_TYPE, 1,
                        [Define if cmsg_type is not passed correctly])
                ;;
        esac
        # tun(4) forwarding compat code
-       AC_CHECK_HEADERS([linux/if_tun.h])
+       AC_CHECK_HEADERS(linux/if_tun.h)
        if test "x$ac_cv_header_linux_if_tun_h" = "xyes" ; then
-               AC_DEFINE([SSH_TUN_LINUX], [1],
+               AC_DEFINE(SSH_TUN_LINUX, 1,
                    [Open tunnel devices the Linux tun/tap way])
-               AC_DEFINE([SSH_TUN_COMPAT_AF], [1],
+               AC_DEFINE(SSH_TUN_COMPAT_AF, 1,
                    [Use tunnel device compatibility to OpenBSD])
-               AC_DEFINE([SSH_TUN_PREPEND_AF], [1],
+               AC_DEFINE(SSH_TUN_PREPEND_AF, 1,
                    [Prepend the address family to IP tunnel traffic])
        fi
        ;;
 mips-sony-bsd|mips-sony-newsos4)
-       AC_DEFINE([NEED_SETPGRP], [1], [Need setpgrp to acquire controlling tty])
+       AC_DEFINE(NEED_SETPGRP, 1, [Need setpgrp to acquire controlling tty])
        SONY=1
        ;;
 *-*-netbsd*)
@@ -663,91 +660,91 @@ mips-sony-bsd|mips-sony-newsos4)
        if test "x$withval" != "xno" ; then
                need_dash_r=1
        fi
-       AC_DEFINE([SSH_TUN_FREEBSD], [1], [Open tunnel devices the FreeBSD way])
+       AC_DEFINE(SSH_TUN_FREEBSD, 1, [Open tunnel devices the FreeBSD way])
        AC_CHECK_HEADER([net/if_tap.h], ,
-           AC_DEFINE([SSH_TUN_NO_L2], [1], [No layer 2 tunnel support]))
-       AC_DEFINE([SSH_TUN_PREPEND_AF], [1],
+           AC_DEFINE(SSH_TUN_NO_L2, 1, [No layer 2 tunnel support]))
+       AC_DEFINE(SSH_TUN_PREPEND_AF, 1,
            [Prepend the address family to IP tunnel traffic])
        ;;
 *-*-freebsd*)
        check_for_libcrypt_later=1
-       AC_DEFINE([LOCKED_PASSWD_PREFIX], ["*LOCKED*"], [Account locked with pw(1)])
-       AC_DEFINE([SSH_TUN_FREEBSD], [1], [Open tunnel devices the FreeBSD way])
+       AC_DEFINE(LOCKED_PASSWD_PREFIX, "*LOCKED*", [Account locked with pw(1)])
+       AC_DEFINE(SSH_TUN_FREEBSD, 1, [Open tunnel devices the FreeBSD way])
        AC_CHECK_HEADER([net/if_tap.h], ,
-           AC_DEFINE([SSH_TUN_NO_L2], [1], [No layer 2 tunnel support]))
-       AC_DEFINE([BROKEN_GLOB], [1], [FreeBSD glob does not do what we need])
+           AC_DEFINE(SSH_TUN_NO_L2, 1, [No layer 2 tunnel support]))
+       AC_DEFINE(BROKEN_GLOB, 1, [FreeBSD glob does not do what we need])
        ;;
 *-*-bsdi*)
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
        ;;
 *-next-*)
        conf_lastlog_location="/usr/adm/lastlog"
        conf_utmp_location=/etc/utmp
        conf_wtmp_location=/usr/adm/wtmp
        MAIL=/usr/spool/mail
-       AC_DEFINE([HAVE_NEXT], [1], [Define if you are on NeXT])
-       AC_DEFINE([BROKEN_REALPATH])
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([BROKEN_SAVED_UIDS], [1], [Needed for NeXT])
+       AC_DEFINE(HAVE_NEXT, 1, [Define if you are on NeXT])
+       AC_DEFINE(BROKEN_REALPATH)
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(BROKEN_SAVED_UIDS, 1, [Needed for NeXT])
        ;;
 *-*-openbsd*)
-       AC_DEFINE([HAVE_ATTRIBUTE__SENTINEL__], [1], [OpenBSD's gcc has sentinel])
-       AC_DEFINE([HAVE_ATTRIBUTE__BOUNDED__], [1], [OpenBSD's gcc has bounded])
-       AC_DEFINE([SSH_TUN_OPENBSD], [1], [Open tunnel devices the OpenBSD way])
-       AC_DEFINE([SYSLOG_R_SAFE_IN_SIGHAND], [1],
+       AC_DEFINE(HAVE_ATTRIBUTE__SENTINEL__, 1, [OpenBSD's gcc has sentinel])
+       AC_DEFINE(HAVE_ATTRIBUTE__BOUNDED__, 1, [OpenBSD's gcc has bounded])
+       AC_DEFINE(SSH_TUN_OPENBSD, 1, [Open tunnel devices the OpenBSD way])
+       AC_DEFINE(SYSLOG_R_SAFE_IN_SIGHAND, 1,
            [syslog_r function is safe to use in in a signal handler])
        ;;
 *-*-solaris*)
        if test "x$withval" != "xno" ; then
                need_dash_r=1
        fi
-       AC_DEFINE([PAM_SUN_CODEBASE])
-       AC_DEFINE([LOGIN_NEEDS_UTMPX])
-       AC_DEFINE([LOGIN_NEEDS_TERM], [1],
+       AC_DEFINE(PAM_SUN_CODEBASE)
+       AC_DEFINE(LOGIN_NEEDS_UTMPX)
+       AC_DEFINE(LOGIN_NEEDS_TERM, 1,
                [Some versions of /bin/login need the TERM supplied
                on the commandline])
-       AC_DEFINE([PAM_TTY_KLUDGE])
-       AC_DEFINE([SSHPAM_CHAUTHTOK_NEEDS_RUID], [1],
+       AC_DEFINE(PAM_TTY_KLUDGE)
+       AC_DEFINE(SSHPAM_CHAUTHTOK_NEEDS_RUID, 1,
                [Define if pam_chauthtok wants real uid set
                to the unpriv'ed user])
-       AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"])
+       AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
        # Pushing STREAMS modules will cause sshd to acquire a controlling tty.
-       AC_DEFINE([SSHD_ACQUIRES_CTTY], [1],
+       AC_DEFINE(SSHD_ACQUIRES_CTTY, 1,
                [Define if sshd somehow reacquires a controlling TTY
                after setsid()])
-       AC_DEFINE([PASSWD_NEEDS_USERNAME], [1], [must supply username to passwd
+       AC_DEFINE(PASSWD_NEEDS_USERNAME, 1, [must supply username to passwd
                in case the name is longer than 8 chars])
-       AC_DEFINE([BROKEN_TCGETATTR_ICANON], [1], [tcgetattr with ICANON may hang])
+       AC_DEFINE(BROKEN_TCGETATTR_ICANON, 1, [tcgetattr with ICANON may hang])
        external_path_file=/etc/default/login
        # hardwire lastlog location (can't detect it on some versions)
        conf_lastlog_location="/var/adm/lastlog"
-       AC_MSG_CHECKING([for obsolete utmp and wtmp in solaris2.x])
+       AC_MSG_CHECKING(for obsolete utmp and wtmp in solaris2.x)
        sol2ver=`echo "$host"| sed -e 's/.*[[0-9]]\.//'`
        if test "$sol2ver" -ge 8; then
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([DISABLE_UTMP])
-               AC_DEFINE([DISABLE_WTMP], [1],
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(DISABLE_UTMP)
+               AC_DEFINE(DISABLE_WTMP, 1,
                        [Define if you don't want to use wtmp])
        else
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
        fi
-       AC_ARG_WITH([solaris-contracts],
+       AC_ARG_WITH(solaris-contracts,
                [  --with-solaris-contracts Enable Solaris process contracts (experimental)],
                [
-               AC_CHECK_LIB([contract], [ct_tmpl_activate],
-                       [ AC_DEFINE([USE_SOLARIS_PROCESS_CONTRACTS], [1],
+               AC_CHECK_LIB(contract, ct_tmpl_activate,
+                       [ AC_DEFINE(USE_SOLARIS_PROCESS_CONTRACTS, 1,
                                [Define if you have Solaris process contracts])
                          SSHDLIBS="$SSHDLIBS -lcontract"
                          SPC_MSG="yes" ], )
                ],
        )
-       AC_ARG_WITH([solaris-projects],
+       AC_ARG_WITH(solaris-projects,
                [  --with-solaris-projects Enable Solaris projects (experimental)],
                [
-               AC_CHECK_LIB([project], [setproject],
-                       [ AC_DEFINE([USE_SOLARIS_PROJECTS], [1],
+               AC_CHECK_LIB(project, setproject,
+                       [ AC_DEFINE(USE_SOLARIS_PROJECTS, 1,
                                [Define if you have Solaris projects])
                        SSHDLIBS="$SSHDLIBS -lproject"
                        SP_MSG="yes" ], )
@@ -756,33 +753,33 @@ mips-sony-bsd|mips-sony-newsos4)
        ;;
 *-*-sunos4*)
        CPPFLAGS="$CPPFLAGS -DSUNOS4"
-       AC_CHECK_FUNCS([getpwanam])
-       AC_DEFINE([PAM_SUN_CODEBASE])
+       AC_CHECK_FUNCS(getpwanam)
+       AC_DEFINE(PAM_SUN_CODEBASE)
        conf_utmp_location=/etc/utmp
        conf_wtmp_location=/var/adm/wtmp
        conf_lastlog_location=/var/adm/lastlog
-       AC_DEFINE([USE_PIPES])
+       AC_DEFINE(USE_PIPES)
        ;;
 *-ncr-sysv*)
        LIBS="$LIBS -lc89"
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([SSHD_ACQUIRES_CTTY])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(SSHD_ACQUIRES_CTTY)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
        ;;
 *-sni-sysv*)
        # /usr/ucblib MUST NOT be searched on ReliantUNIX
-       AC_CHECK_LIB([dl], [dlsym], ,)
+       AC_CHECK_LIB(dl, dlsym, ,)
        # -lresolv needs to be at the end of LIBS or DNS lookups break
-       AC_CHECK_LIB([resolv], [res_query], [ LIBS="$LIBS -lresolv" ])
+       AC_CHECK_LIB(resolv, res_query, [ LIBS="$LIBS -lresolv" ])
        IPADDR_IN_DISPLAY=yes
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([IP_TOS_IS_BROKEN])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([SSHD_ACQUIRES_CTTY])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(IP_TOS_IS_BROKEN)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(SSHD_ACQUIRES_CTTY)
        external_path_file=/etc/default/login
        # /usr/ucblib/libucb.a no longer needed on ReliantUNIX
        # Attention: always take care to bind libsocket and libnsl before libc,
@@ -790,36 +787,36 @@ mips-sony-bsd|mips-sony-newsos4)
        ;;
 # UnixWare 1.x, UnixWare 2.x, and others based on code from Univel.
 *-*-sysv4.2*)
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([PASSWD_NEEDS_USERNAME], [1], [must supply username to passwd])
-       AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(PASSWD_NEEDS_USERNAME, 1, [must supply username to passwd])
+       AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
        ;;
 # UnixWare 7.x, OpenUNIX 8
 *-*-sysv5*)
        CPPFLAGS="$CPPFLAGS -Dvsnprintf=_xvsnprintf -Dsnprintf=_xsnprintf"
-       AC_DEFINE([UNIXWARE_LONG_PASSWORDS], [1], [Support passwords > 8 chars])
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_GETADDRINFO])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([PASSWD_NEEDS_USERNAME])
+       AC_DEFINE(UNIXWARE_LONG_PASSWORDS, 1, [Support passwords > 8 chars])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_GETADDRINFO)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(PASSWD_NEEDS_USERNAME)
        case "$host" in
        *-*-sysv5SCO_SV*)       # SCO OpenServer 6.x
                TEST_SHELL=/u95/bin/sh
-               AC_DEFINE([BROKEN_LIBIAF], [1],
+               AC_DEFINE(BROKEN_LIBIAF, 1,
                        [ia_uinfo routines not supported by OS yet])
-               AC_DEFINE([BROKEN_UPDWTMPX])
-               AC_CHECK_LIB([prot], [getluid], [ LIBS="$LIBS -lprot"
-                       AC_CHECK_FUNCS([getluid setluid], , , [-lprot])
-                       AC_DEFINE([HAVE_SECUREWARE])
-                       AC_DEFINE([DISABLE_SHADOW])
-                       ], , )
+               AC_DEFINE(BROKEN_UPDWTMPX)
+               AC_CHECK_LIB(prot, getluid,[ LIBS="$LIBS -lprot"
+                       AC_CHECK_FUNCS(getluid setluid,,,-lprot)
+                       AC_DEFINE(HAVE_SECUREWARE)
+                       AC_DEFINE(DISABLE_SHADOW)
+                       ],,)
                ;;
-       *)      AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"])
+       *)      AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
                check_for_libcrypt_later=1
                ;;
        esac
@@ -837,128 +834,132 @@ mips-sony-bsd|mips-sony-newsos4)
        fi
        LIBS="$LIBS -lprot -lx -ltinfo -lm"
        no_dev_ptmx=1
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([HAVE_SECUREWARE])
-       AC_DEFINE([DISABLE_SHADOW])
-       AC_DEFINE([DISABLE_FD_PASSING])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_GETADDRINFO])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([WITH_ABBREV_NO_TTY])
-       AC_DEFINE([BROKEN_UPDWTMPX])
-       AC_DEFINE([PASSWD_NEEDS_USERNAME])
-       AC_CHECK_FUNCS([getluid setluid])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(HAVE_SECUREWARE)
+       AC_DEFINE(DISABLE_SHADOW)
+       AC_DEFINE(DISABLE_FD_PASSING)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_GETADDRINFO)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(WITH_ABBREV_NO_TTY)
+       AC_DEFINE(BROKEN_UPDWTMPX)
+       AC_DEFINE(PASSWD_NEEDS_USERNAME)
+       AC_CHECK_FUNCS(getluid setluid)
        MANTYPE=man
        TEST_SHELL=ksh
        ;;
 *-*-unicosmk*)
-       AC_DEFINE([NO_SSH_LASTLOG], [1],
+       AC_DEFINE(NO_SSH_LASTLOG, 1,
                [Define if you don't want to use lastlog in session.c])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([DISABLE_FD_PASSING])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(DISABLE_FD_PASSING)
        LDFLAGS="$LDFLAGS"
        LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
        MANTYPE=cat
        ;;
 *-*-unicosmp*)
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([WITH_ABBREV_NO_TTY])
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([DISABLE_FD_PASSING])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(WITH_ABBREV_NO_TTY)
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(DISABLE_FD_PASSING)
        LDFLAGS="$LDFLAGS"
        LIBS="$LIBS -lgen -lacid -ldb"
        MANTYPE=cat
        ;;
 *-*-unicos*)
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([DISABLE_FD_PASSING])
-       AC_DEFINE([NO_SSH_LASTLOG])
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(DISABLE_FD_PASSING)
+       AC_DEFINE(NO_SSH_LASTLOG)
        LDFLAGS="$LDFLAGS -Wl,-Dmsglevel=334:fatal"
        LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
        MANTYPE=cat
        ;;
 *-dec-osf*)
-       AC_MSG_CHECKING([for Digital Unix SIA])
+       AC_MSG_CHECKING(for Digital Unix SIA)
        no_osfsia=""
-       AC_ARG_WITH([osfsia],
+       AC_ARG_WITH(osfsia,
                [  --with-osfsia           Enable Digital Unix SIA],
                [
                        if test "x$withval" = "xno" ; then
-                               AC_MSG_RESULT([disabled])
+                               AC_MSG_RESULT(disabled)
                                no_osfsia=1
                        fi
                ],
        )
        if test -z "$no_osfsia" ; then
                if test -f /etc/sia/matrix.conf; then
-                       AC_MSG_RESULT([yes])
-                       AC_DEFINE([HAVE_OSF_SIA], [1],
+                       AC_MSG_RESULT(yes)
+                       AC_DEFINE(HAVE_OSF_SIA, 1,
                                [Define if you have Digital Unix Security
                                Integration Architecture])
-                       AC_DEFINE([DISABLE_LOGIN], [1],
+                       AC_DEFINE(DISABLE_LOGIN, 1,
                                [Define if you don't want to use your
                                system's login() call])
-                       AC_DEFINE([DISABLE_FD_PASSING])
+                       AC_DEFINE(DISABLE_FD_PASSING)
                        LIBS="$LIBS -lsecurity -ldb -lm -laud"
                        SIA_MSG="yes"
                else
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([LOCKED_PASSWD_SUBSTR], ["Nologin"],
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(LOCKED_PASSWD_SUBSTR, "Nologin",
                          [String used in /etc/passwd to denote locked account])
                fi
        fi
-       AC_DEFINE([BROKEN_GETADDRINFO])
-       AC_DEFINE([SETEUID_BREAKS_SETUID])
-       AC_DEFINE([BROKEN_SETREUID])
-       AC_DEFINE([BROKEN_SETREGID])
-       AC_DEFINE([BROKEN_READV_COMPARISON], [1], [Can't do comparisons on readv])
+       AC_DEFINE(BROKEN_GETADDRINFO)
+       AC_DEFINE(SETEUID_BREAKS_SETUID)
+       AC_DEFINE(BROKEN_SETREUID)
+       AC_DEFINE(BROKEN_SETREGID)
+       AC_DEFINE(BROKEN_READV_COMPARISON, 1, [Can't do comparisons on readv])
        ;;
 
 *-*-nto-qnx*)
-       AC_DEFINE([USE_PIPES])
-       AC_DEFINE([NO_X11_UNIX_SOCKETS])
-       AC_DEFINE([MISSING_NFDBITS], [1], [Define on *nto-qnx systems])
-       AC_DEFINE([MISSING_HOWMANY], [1], [Define on *nto-qnx systems])
-       AC_DEFINE([MISSING_FD_MASK], [1], [Define on *nto-qnx systems])
-       AC_DEFINE([DISABLE_LASTLOG])
-       AC_DEFINE([SSHD_ACQUIRES_CTTY])
-       AC_DEFINE([BROKEN_SHADOW_EXPIRE], [1], [QNX shadow support is broken])
+       AC_DEFINE(USE_PIPES)
+       AC_DEFINE(NO_X11_UNIX_SOCKETS)
+       AC_DEFINE(MISSING_NFDBITS, 1, [Define on *nto-qnx systems])
+       AC_DEFINE(MISSING_HOWMANY, 1, [Define on *nto-qnx systems])
+       AC_DEFINE(MISSING_FD_MASK, 1, [Define on *nto-qnx systems])
+       AC_DEFINE(DISABLE_LASTLOG)
+       AC_DEFINE(SSHD_ACQUIRES_CTTY)
+       AC_DEFINE(BROKEN_SHADOW_EXPIRE, 1, [QNX shadow support is broken])
        enable_etc_default_login=no     # has incompatible /etc/default/login
        case "$host" in
        *-*-nto-qnx6*)
-               AC_DEFINE([DISABLE_FD_PASSING])
+               AC_DEFINE(DISABLE_FD_PASSING)
                ;;
        esac
        ;;
 
 *-*-ultrix*)
-       AC_DEFINE([BROKEN_GETGROUPS], [1], [getgroups(0,NULL) will return -1])
-       AC_DEFINE([BROKEN_MMAP], [1], [Ultrix mmap can't map files])
-       AC_DEFINE([NEED_SETPGRP])
-       AC_DEFINE([HAVE_SYS_SYSLOG_H], [1], [Force use of sys/syslog.h on Ultrix])
+       AC_DEFINE(BROKEN_GETGROUPS, 1, [getgroups(0,NULL) will return -1])
+       AC_DEFINE(BROKEN_MMAP, 1, [Ultrix mmap can't map files])
+       AC_DEFINE(NEED_SETPGRP)
+       AC_DEFINE(HAVE_SYS_SYSLOG_H, 1, [Force use of sys/syslog.h on Ultrix])
        ;;
 
 *-*-lynxos)
         CFLAGS="$CFLAGS -D__NO_INCLUDE_WARN__"
-       AC_DEFINE([MISSING_HOWMANY])
-        AC_DEFINE([BROKEN_SETVBUF], [1], [LynxOS has broken setvbuf() implementation])
+       AC_DEFINE(MISSING_HOWMANY)
+        AC_DEFINE(BROKEN_SETVBUF, 1, [LynxOS has broken setvbuf() implementation])
         ;;
 esac
 
-AC_MSG_CHECKING([compiler and flags for sanity])
-AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> ]], [[ exit(0); ]])],
-       [       AC_MSG_RESULT([yes]) ],
+AC_MSG_CHECKING(compiler and flags for sanity)
+AC_RUN_IFELSE(
+       [AC_LANG_SOURCE([
+#include <stdio.h>
+int main(){exit(0);}
+       ])],
+       [       AC_MSG_RESULT(yes) ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                AC_MSG_ERROR([*** compiler cannot create working executables, check config.log ***])
        ],
        [       AC_MSG_WARN([cross compiling: not checking compiler sanity]) ]
@@ -966,12 +967,12 @@ AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> ]], [[ exit(0); ]])],
 
 dnl Checks for header files.
 # Checks for libraries.
-AC_CHECK_FUNC([yp_match], , [AC_CHECK_LIB([nsl], [yp_match])])
-AC_CHECK_FUNC([setsockopt], , [AC_CHECK_LIB([socket], [setsockopt])])
+AC_CHECK_FUNC(yp_match, , AC_CHECK_LIB(nsl, yp_match))
+AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
 
 dnl IRIX and Solaris 2.5.1 have dirname() in libgen
-AC_CHECK_FUNCS([dirname], [AC_CHECK_HEADERS([libgen.h])] , [
-       AC_CHECK_LIB([gen], [dirname], [
+AC_CHECK_FUNCS(dirname, [AC_CHECK_HEADERS(libgen.h)] ,[
+       AC_CHECK_LIB(gen, dirname,[
                AC_CACHE_CHECK([for broken dirname],
                        ac_cv_have_broken_dirname, [
                        save_LIBS="$LIBS"
@@ -1001,19 +1002,19 @@ int main(int argc, char **argv) {
                ])
                if test "x$ac_cv_have_broken_dirname" = "xno" ; then
                        LIBS="$LIBS -lgen"
-                       AC_DEFINE([HAVE_DIRNAME])
-                       AC_CHECK_HEADERS([libgen.h])
+                       AC_DEFINE(HAVE_DIRNAME)
+                       AC_CHECK_HEADERS(libgen.h)
                fi
        ])
 ])
 
-AC_CHECK_FUNC([getspnam], ,
-       [AC_CHECK_LIB([gen], [getspnam], [LIBS="$LIBS -lgen"])])
-AC_SEARCH_LIBS([basename], [gen], [AC_DEFINE([HAVE_BASENAME], [1],
-       [Define if you have the basename function.])])
+AC_CHECK_FUNC(getspnam, ,
+       AC_CHECK_LIB(gen, getspnam, LIBS="$LIBS -lgen"))
+AC_SEARCH_LIBS(basename, gen, AC_DEFINE(HAVE_BASENAME, 1,
+       [Define if you have the basename function.]))
 
 dnl zlib is required
-AC_ARG_WITH([zlib],
+AC_ARG_WITH(zlib,
        [  --with-zlib=PATH        Use zlib in PATH],
        [ if test "x$withval" = "xno" ; then
                AC_MSG_ERROR([*** zlib is required ***])
@@ -1039,8 +1040,8 @@ AC_ARG_WITH([zlib],
        fi ]
 )
 
-AC_CHECK_HEADER([zlib.h], ,[AC_MSG_ERROR([*** zlib.h missing - please install first or check config.log ***])])
-AC_CHECK_LIB([z], [deflate], ,
+AC_CHECK_HEADER([zlib.h], ,AC_MSG_ERROR([*** zlib.h missing - please install first or check config.log ***]))
+AC_CHECK_LIB(z, deflate, ,
        [
                saved_CPPFLAGS="$CPPFLAGS"
                saved_LDFLAGS="$LDFLAGS"
@@ -1053,7 +1054,7 @@ AC_CHECK_LIB([z], [deflate], ,
                fi
                CPPFLAGS="-I/usr/local/include ${saved_CPPFLAGS}"
                LIBS="$LIBS -lz"
-               AC_TRY_LINK_FUNC([deflate], [AC_DEFINE([HAVE_LIBZ])],
+               AC_TRY_LINK_FUNC(deflate, AC_DEFINE(HAVE_LIBZ),
                        [
                                AC_MSG_ERROR([*** zlib missing - please install first or check config.log ***])
                        ]
@@ -1061,7 +1062,7 @@ AC_CHECK_LIB([z], [deflate], ,
        ]
 )
 
-AC_ARG_WITH([zlib-version-check],
+AC_ARG_WITH(zlib-version-check,
        [  --without-zlib-version-check Disable zlib version check],
        [  if test "x$withval" = "xno" ; then
                zlib_check_nonfatal=1
@@ -1069,12 +1070,12 @@ AC_ARG_WITH([zlib-version-check],
        ]
 )
 
-AC_MSG_CHECKING([for possibly buggy zlib])
-AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+AC_MSG_CHECKING(for possibly buggy zlib)
+AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <zlib.h>
-       ]],
-       [[
+int main()
+{
        int a=0, b=0, c=0, d=0, n, v;
        n = sscanf(ZLIB_VERSION, "%d.%d.%d.%d", &a, &b, &c, &d);
        if (n != 3 && n != 4)
@@ -1091,9 +1092,10 @@ AC_RUN_IFELSE([AC_LANG_PROGRAM([[
                exit(0);
 
        exit(2);
+}
        ]])],
-       AC_MSG_RESULT([no]),
-       [ AC_MSG_RESULT([yes])
+       AC_MSG_RESULT(no),
+       [ AC_MSG_RESULT(yes)
          if test -z "$zlib_check_nonfatal" ; then
                AC_MSG_ERROR([*** zlib too old - check config.log ***
 Your reported zlib version has known security problems.  It's possible your
@@ -1110,25 +1112,25 @@ See http://www.gzip.org/zlib/ for details.])
 )
 
 dnl UnixWare 2.x
-AC_CHECK_FUNC([strcasecmp],
-       [], [ AC_CHECK_LIB([resolv], [strcasecmp], [LIBS="$LIBS -lresolv"]) ]
+AC_CHECK_FUNC(strcasecmp,
+       [], [ AC_CHECK_LIB(resolv, strcasecmp, LIBS="$LIBS -lresolv") ]
 )
-AC_CHECK_FUNCS([utimes],
-       [], [ AC_CHECK_LIB([c89], [utimes], [AC_DEFINE([HAVE_UTIMES])
+AC_CHECK_FUNCS(utimes,
+       [], [ AC_CHECK_LIB(c89, utimes, [AC_DEFINE(HAVE_UTIMES)
                                        LIBS="$LIBS -lc89"]) ]
 )
 
 dnl    Checks for libutil functions
-AC_CHECK_HEADERS([libutil.h])
-AC_SEARCH_LIBS([login], [util bsd], [AC_DEFINE([HAVE_LOGIN], [1],
+AC_CHECK_HEADERS(libutil.h)
+AC_SEARCH_LIBS(login, util bsd, [AC_DEFINE(HAVE_LOGIN, 1,
        [Define if your libraries define login()])])
-AC_CHECK_FUNCS([fmt_scaled logout updwtmp logwtmp])
+AC_CHECK_FUNCS(fmt_scaled logout updwtmp logwtmp)
 
 AC_FUNC_STRFTIME
 
 # Check for ALTDIRFUNC glob() extension
-AC_MSG_CHECKING([for GLOB_ALTDIRFUNC support])
-AC_EGREP_CPP([FOUNDIT],
+AC_MSG_CHECKING(for GLOB_ALTDIRFUNC support)
+AC_EGREP_CPP(FOUNDIT,
        [
                #include <glob.h>
                #ifdef GLOB_ALTDIRFUNC
@@ -1136,83 +1138,87 @@ AC_EGREP_CPP([FOUNDIT],
                #endif
        ],
        [
-               AC_DEFINE([GLOB_HAS_ALTDIRFUNC], [1],
+               AC_DEFINE(GLOB_HAS_ALTDIRFUNC, 1,
                        [Define if your system glob() function has
                        the GLOB_ALTDIRFUNC extension])
-               AC_MSG_RESULT([yes])
+               AC_MSG_RESULT(yes)
        ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
        ]
 )
 
 # Check for g.gl_matchc glob() extension
-AC_MSG_CHECKING([for gl_matchc field in glob_t])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <glob.h> ]],
-       [[ glob_t g; g.gl_matchc = 1; ]])],
+AC_MSG_CHECKING(for gl_matchc field in glob_t)
+AC_TRY_COMPILE(
+       [ #include <glob.h> ],
+       [glob_t g; g.gl_matchc = 1;],
        [
-               AC_DEFINE([GLOB_HAS_GL_MATCHC], [1],
+               AC_DEFINE(GLOB_HAS_GL_MATCHC, 1,
                        [Define if your system glob() function has
                        gl_matchc options in glob_t])
-               AC_MSG_RESULT([yes])
-       ], [
-               AC_MSG_RESULT([no])
-])
+               AC_MSG_RESULT(yes)
+       ],
+       [
+               AC_MSG_RESULT(no)
+       ]
+)
 
 # Check for g.gl_statv glob() extension
-AC_MSG_CHECKING([for gl_statv and GLOB_KEEPSTAT extensions for glob])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <glob.h> ]], [[
+AC_MSG_CHECKING(for gl_statv and GLOB_KEEPSTAT extensions for glob)
+AC_TRY_COMPILE(
+       [ #include <glob.h> ],
+       [
 #ifndef GLOB_KEEPSTAT
 #error "glob does not support GLOB_KEEPSTAT extension"
 #endif
 glob_t g;
 g.gl_statv = NULL;
-]])],
+],
        [
-               AC_DEFINE([GLOB_HAS_GL_STATV], [1],
+               AC_DEFINE(GLOB_HAS_GL_STATV, 1,
                        [Define if your system glob() function has
                        gl_statv options in glob_t])
-               AC_MSG_RESULT([yes])
-       ], [
-               AC_MSG_RESULT([no])
-       
-])
+               AC_MSG_RESULT(yes)
+       ],
+       [
+               AC_MSG_RESULT(no)
+       ]
+)
 
-AC_CHECK_DECLS([GLOB_NOMATCH], , , [#include <glob.h>])
+AC_CHECK_DECLS(GLOB_NOMATCH, , , [#include <glob.h>])
 
 AC_MSG_CHECKING([whether struct dirent allocates space for d_name])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <sys/types.h>
-#include <dirent.h>]],
-       [[
-       struct dirent d;
-       exit(sizeof(d.d_name)<=sizeof(char));
+#include <dirent.h>
+int main(void){struct dirent d;exit(sizeof(d.d_name)<=sizeof(char));}
        ]])],
-       [AC_MSG_RESULT([yes])],
+       [AC_MSG_RESULT(yes)],
        [
-               AC_MSG_RESULT([no])
-               AC_DEFINE([BROKEN_ONE_BYTE_DIRENT_D_NAME], [1],
+               AC_MSG_RESULT(no)
+               AC_DEFINE(BROKEN_ONE_BYTE_DIRENT_D_NAME, 1,
                        [Define if your struct dirent expects you to
                        allocate extra space for d_name])
        ],
        [
                AC_MSG_WARN([cross compiling: assuming BROKEN_ONE_BYTE_DIRENT_D_NAME])
-               AC_DEFINE([BROKEN_ONE_BYTE_DIRENT_D_NAME])
+               AC_DEFINE(BROKEN_ONE_BYTE_DIRENT_D_NAME)
        ]
 )
 
 AC_MSG_CHECKING([for /proc/pid/fd directory])
 if test -d "/proc/$$/fd" ; then
-       AC_DEFINE([HAVE_PROC_PID], [1], [Define if you have /proc/$pid/fd])
-       AC_MSG_RESULT([yes])
+       AC_DEFINE(HAVE_PROC_PID, 1, [Define if you have /proc/$pid/fd])
+       AC_MSG_RESULT(yes)
 else
-       AC_MSG_RESULT([no])
+       AC_MSG_RESULT(no)
 fi
 
 # Check whether user wants S/Key support
 SKEY_MSG="no"
-AC_ARG_WITH([skey],
+AC_ARG_WITH(skey,
        [  --with-skey[[=PATH]]      Enable S/Key support (optionally in PATH)],
        [
                if test "x$withval" != "xno" ; then
@@ -1222,46 +1228,40 @@ AC_ARG_WITH([skey],
                                LDFLAGS="$LDFLAGS -L${withval}/lib"
                        fi
 
-                       AC_DEFINE([SKEY], [1], [Define if you want S/Key support])
+                       AC_DEFINE(SKEY, 1, [Define if you want S/Key support])
                        LIBS="-lskey $LIBS"
                        SKEY_MSG="yes"
 
                        AC_MSG_CHECKING([for s/key support])
                        AC_LINK_IFELSE(
-                               [AC_LANG_PROGRAM([[
+                               [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <skey.h>
-                               ]], [[
-       char *ff = skey_keyinfo(""); ff="";
-       exit(0);
+int main() { char *ff = skey_keyinfo(""); ff=""; exit(0); }
                                ]])],
-                               [AC_MSG_RESULT([yes])],
+                               [AC_MSG_RESULT(yes)],
                                [
-                                       AC_MSG_RESULT([no])
+                                       AC_MSG_RESULT(no)
                                        AC_MSG_ERROR([** Incomplete or missing s/key libraries.])
                                ])
-                       AC_MSG_CHECKING([if skeychallenge takes 4 arguments])
-                       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#include <skey.h>
-                               ]], [[
-       (void)skeychallenge(NULL,"name","",0);
-                               ]])],
-                       [
-                               AC_MSG_RESULT([yes])
-                               AC_DEFINE([SKEYCHALLENGE_4ARG], [1],
+                       AC_MSG_CHECKING(if skeychallenge takes 4 arguments)
+                       AC_TRY_COMPILE(
+                               [#include <stdio.h>
+                                #include <skey.h>],
+                               [(void)skeychallenge(NULL,"name","",0);],
+                               [AC_MSG_RESULT(yes)
+                                AC_DEFINE(SKEYCHALLENGE_4ARG, 1,
                                        [Define if your skeychallenge()
                                        function takes 4 arguments (NetBSD)])],
-                       [
-                               AC_MSG_RESULT([no])
-                       ])
+                               [AC_MSG_RESULT(no)]
+                       )
                fi
        ]
 )
 
 # Check whether user wants TCP wrappers support
 TCPW_MSG="no"
-AC_ARG_WITH([tcp-wrappers],
+AC_ARG_WITH(tcp-wrappers,
        [  --with-tcp-wrappers[[=PATH]] Enable tcpwrappers support (optionally in PATH)],
        [
                if test "x$withval" != "xno" ; then
@@ -1290,26 +1290,28 @@ AC_ARG_WITH([tcp-wrappers],
                                fi
                        fi
                        LIBS="-lwrap $LIBS"
-                       AC_MSG_CHECKING([for libwrap])
-                       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                       AC_MSG_CHECKING(for libwrap)
+                       AC_TRY_LINK(
+                               [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <tcpd.h>
-int deny_severity = 0, allow_severity = 0;
-                               ]], [[
-       hosts_access(0);
-                               ]])], [
-                                       AC_MSG_RESULT([yes])
-                                       AC_DEFINE([LIBWRAP], [1],
+                                       int deny_severity = 0, allow_severity = 0;
+                               ],
+                               [hosts_access(0);],
+                               [
+                                       AC_MSG_RESULT(yes)
+                                       AC_DEFINE(LIBWRAP, 1,
                                                [Define if you want
                                                TCP Wrappers support])
                                        SSHDLIBS="$SSHDLIBS -lwrap"
                                        TCPW_MSG="yes"
-                               ], [
+                               ],
+                               [
                                        AC_MSG_ERROR([*** libwrap missing])
-                               
-                       ])
+                               ]
+                       )
                        LIBS="$saved_LIBS"
                fi
        ]
@@ -1317,18 +1319,18 @@ int deny_severity = 0, allow_severity = 0;
 
 # Check whether user wants libedit support
 LIBEDIT_MSG="no"
-AC_ARG_WITH([libedit],
+AC_ARG_WITH(libedit,
        [  --with-libedit[[=PATH]]   Enable libedit support for sftp],
        [ if test "x$withval" != "xno" ; then
                if test "x$withval" = "xyes" ; then
-                       AC_PATH_PROG([PKGCONFIG], [pkg-config], [no])
+                       AC_PATH_PROG(PKGCONFIG, pkg-config, no)
                        if test "x$PKGCONFIG" != "xno"; then
-                               AC_MSG_CHECKING([if $PKGCONFIG knows about libedit])
+                               AC_MSG_CHECKING(if $PKGCONFIG knows about libedit)
                                if "$PKGCONFIG" libedit; then
-                                       AC_MSG_RESULT([yes])
+                                       AC_MSG_RESULT(yes)
                                        use_pkgconfig_for_libedit=yes
                                else
-                                       AC_MSG_RESULT([no])
+                                       AC_MSG_RESULT(no)
                                fi
                        fi
                else
@@ -1346,70 +1348,73 @@ AC_ARG_WITH([libedit],
                        LIBEDIT="-ledit -lcurses"
                fi
                OTHERLIBS=`echo $LIBEDIT | sed 's/-ledit//'`
-               AC_CHECK_LIB([edit], [el_init],
-                       [ AC_DEFINE([USE_LIBEDIT], [1], [Use libedit for sftp])
+               AC_CHECK_LIB(edit, el_init,
+                       [ AC_DEFINE(USE_LIBEDIT, 1, [Use libedit for sftp])
                          LIBEDIT_MSG="yes"
-                         AC_SUBST([LIBEDIT])
+                         AC_SUBST(LIBEDIT)
                        ],
-                       [ AC_MSG_ERROR([libedit not found]) ],
+                       [ AC_MSG_ERROR(libedit not found) ],
                        [ $OTHERLIBS ]
                )
-               AC_MSG_CHECKING([if libedit version is compatible])
+               AC_MSG_CHECKING(if libedit version is compatible)
                AC_COMPILE_IFELSE(
-                   [AC_LANG_PROGRAM([[ #include <histedit.h> ]],
-                   [[
+                   [AC_LANG_SOURCE([[
+#include <histedit.h>
+int main(void)
+{
        int i = H_SETSIZE;
        el_init("", NULL, NULL, NULL);
        exit(0);
+}
                    ]])],
-                   [ AC_MSG_RESULT([yes]) ],
-                   [ AC_MSG_RESULT([no])
-                     AC_MSG_ERROR([libedit version is not compatible]) ]
+                   [ AC_MSG_RESULT(yes) ],
+                   [ AC_MSG_RESULT(no)
+                     AC_MSG_ERROR(libedit version is not compatible) ]
                )
        fi ]
 )
 
 AUDIT_MODULE=none
-AC_ARG_WITH([audit],
+AC_ARG_WITH(audit,
        [  --with-audit=module     Enable audit support (modules=debug,bsm,linux)],
        [
-         AC_MSG_CHECKING([for supported audit module])
+         AC_MSG_CHECKING(for supported audit module)
          case "$withval" in
          bsm)
-               AC_MSG_RESULT([bsm])
+               AC_MSG_RESULT(bsm)
                AUDIT_MODULE=bsm
                dnl    Checks for headers, libs and functions
-               AC_CHECK_HEADERS([bsm/audit.h], [],
-                   [AC_MSG_ERROR([BSM enabled and bsm/audit.h not found])],
+               AC_CHECK_HEADERS(bsm/audit.h, [],
+                   [AC_MSG_ERROR(BSM enabled and bsm/audit.h not found)],
                    [
 #ifdef HAVE_TIME_H
 # include <time.h>
 #endif
                    ]
 )
-               AC_CHECK_LIB([bsm], [getaudit], [],
-                   [AC_MSG_ERROR([BSM enabled and required library not found])])
-               AC_CHECK_FUNCS([getaudit], [],
-                   [AC_MSG_ERROR([BSM enabled and required function not found])])
+               AC_CHECK_LIB(bsm, getaudit, [],
+                   [AC_MSG_ERROR(BSM enabled and required library not found)])
+               AC_CHECK_FUNCS(getaudit, [],
+                   [AC_MSG_ERROR(BSM enabled and required function not found)])
                # These are optional
-               AC_CHECK_FUNCS([getaudit_addr aug_get_machine])
-               AC_DEFINE([USE_BSM_AUDIT], [1], [Use BSM audit module])
+               AC_CHECK_FUNCS(getaudit_addr aug_get_machine)
+               AC_DEFINE(USE_BSM_AUDIT, 1, [Use BSM audit module])
                ;;
          linux)
-               AC_MSG_RESULT([linux])
+               AC_MSG_RESULT(linux)
                AUDIT_MODULE=linux
                dnl    Checks for headers, libs and functions
-               AC_CHECK_HEADERS([libaudit.h])
+               AC_CHECK_HEADERS(libaudit.h)
                SSHDLIBS="$SSHDLIBS -laudit"
-               AC_DEFINE([USE_LINUX_AUDIT], [1], [Use Linux audit module])
+               AC_DEFINE(USE_LINUX_AUDIT, 1, [Use Linux audit module])
                ;;
          debug)
                AUDIT_MODULE=debug
-               AC_MSG_RESULT([debug])
-               AC_DEFINE([SSH_AUDIT_EVENTS], [1], [Use audit debugging module])
+               AC_MSG_RESULT(debug)
+               AC_DEFINE(SSH_AUDIT_EVENTS, 1, [Use audit debugging module])
                ;;
          no)
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                ;;
          *)
                AC_MSG_ERROR([Unknown audit module $withval])
@@ -1418,7 +1423,7 @@ AC_ARG_WITH([audit],
 )
 
 dnl    Checks for library functions. Please keep in alphabetical order
-AC_CHECK_FUNCS([ \
+AC_CHECK_FUNCS( \
        arc4random \
        arc4random_buf \
        arc4random_uniform \
@@ -1514,43 +1519,46 @@ AC_CHECK_FUNCS([ \
        vhangup \
        vsnprintf \
        waitpid \
-])
+)
 
 AC_LINK_IFELSE(
-        [AC_LANG_PROGRAM(
-           [[ #include <ctype.h> ]],
-           [[ return (isblank('a')); ]])],
-       [AC_DEFINE([HAVE_ISBLANK], [1], [Define if you have isblank(3C).])
+[
+#include <ctype.h>
+int main(void)
+{
+       return (isblank('a'));
+}
+],
+       [AC_DEFINE(HAVE_ISBLANK, 1, [Define if you have isblank(3C).])
 ])
 
 # PKCS#11 support requires dlopen() and co
-AC_SEARCH_LIBS([dlopen], [dl],
-    [AC_DEFINE([ENABLE_PKCS11], [], [Enable for PKCS#11 support])]
+AC_SEARCH_LIBS(dlopen, dl,
+    AC_DEFINE([ENABLE_PKCS11], [], [Enable for PKCS#11 support])
 )
 
 # IRIX has a const char return value for gai_strerror()
-AC_CHECK_FUNCS([gai_strerror], [
-       AC_DEFINE([HAVE_GAI_STRERROR])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_CHECK_FUNCS(gai_strerror,[
+       AC_DEFINE(HAVE_GAI_STRERROR)
+       AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>
 
-const char *gai_strerror(int);
-                       ]], [[
-       char *str;
-       str = gai_strerror(0);
-                       ]])], [
-               AC_DEFINE([HAVE_CONST_GAI_STRERROR_PROTO], [1],
-               [Define if gai_strerror() returns const char *])], [])])
+const char *gai_strerror(int);],[
+char *str;
+
+str = gai_strerror(0);],[
+               AC_DEFINE(HAVE_CONST_GAI_STRERROR_PROTO, 1,
+               [Define if gai_strerror() returns const char *])])])
 
-AC_SEARCH_LIBS([nanosleep], [rt posix4], [AC_DEFINE([HAVE_NANOSLEEP], [1],
-       [Some systems put nanosleep outside of libc])])
+AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP, 1,
+       [Some systems put nanosleep outside of libc]))
 
 dnl Make sure prototypes are defined for these before using them.
-AC_CHECK_DECL([getrusage], [AC_CHECK_FUNCS([getrusage])])
-AC_CHECK_DECL([strsep],
-       [AC_CHECK_FUNCS([strsep])],
+AC_CHECK_DECL(getrusage, [AC_CHECK_FUNCS(getrusage)])
+AC_CHECK_DECL(strsep,
+       [AC_CHECK_FUNCS(strsep)],
        [],
        [
 #ifdef HAVE_STRING_H
@@ -1559,21 +1567,21 @@ AC_CHECK_DECL([strsep],
        ])
 
 dnl tcsendbreak might be a macro
-AC_CHECK_DECL([tcsendbreak],
-       [AC_DEFINE([HAVE_TCSENDBREAK])],
-       [AC_CHECK_FUNCS([tcsendbreak])],
+AC_CHECK_DECL(tcsendbreak,
+       [AC_DEFINE(HAVE_TCSENDBREAK)],
+       [AC_CHECK_FUNCS(tcsendbreak)],
        [#include <termios.h>]
 )
 
-AC_CHECK_DECLS([h_errno], , ,[#include <netdb.h>])
+AC_CHECK_DECLS(h_errno, , ,[#include <netdb.h>])
 
-AC_CHECK_DECLS([SHUT_RD], , ,
+AC_CHECK_DECLS(SHUT_RD, , ,
        [
 #include <sys/types.h>
 #include <sys/socket.h>
        ])
 
-AC_CHECK_DECLS([O_NONBLOCK], , ,
+AC_CHECK_DECLS(O_NONBLOCK, , ,
        [
 #include <sys/types.h>
 #ifdef HAVE_SYS_STAT_H
@@ -1584,104 +1592,90 @@ AC_CHECK_DECLS([O_NONBLOCK], , ,
 #endif
        ])
 
-AC_CHECK_DECLS([writev], , , [
+AC_CHECK_DECLS(writev, , , [
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <unistd.h>
        ])
 
-AC_CHECK_DECLS([MAXSYMLINKS], , , [
+AC_CHECK_DECLS(MAXSYMLINKS, , , [
 #include <sys/param.h>
        ])
 
-AC_CHECK_DECLS([offsetof], , , [
+AC_CHECK_DECLS(offsetof, , , [
 #include <stddef.h>
        ])
 
-AC_CHECK_FUNCS([setresuid], [
+AC_CHECK_FUNCS(setresuid, [
        dnl Some platorms have setresuid that isn't implemented, test for this
-       AC_MSG_CHECKING([if setresuid seems to work])
+       AC_MSG_CHECKING(if setresuid seems to work)
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdlib.h>
 #include <errno.h>
-               ]], [[
-       errno=0;
-       setresuid(0,0,0);
-       if (errno==ENOSYS)
-               exit(1);
-       else
-               exit(0);
+int main(){errno=0; setresuid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
                ]])],
-               [AC_MSG_RESULT([yes])],
-               [AC_DEFINE([BROKEN_SETRESUID], [1],
+               [AC_MSG_RESULT(yes)],
+               [AC_DEFINE(BROKEN_SETRESUID, 1,
                        [Define if your setresuid() is broken])
-                AC_MSG_RESULT([not implemented])],
+                AC_MSG_RESULT(not implemented)],
                [AC_MSG_WARN([cross compiling: not checking setresuid])]
        )
 ])
 
-AC_CHECK_FUNCS([setresgid], [
+AC_CHECK_FUNCS(setresgid, [
        dnl Some platorms have setresgid that isn't implemented, test for this
-       AC_MSG_CHECKING([if setresgid seems to work])
+       AC_MSG_CHECKING(if setresgid seems to work)
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdlib.h>
 #include <errno.h>
-               ]], [[
-       errno=0;
-       setresgid(0,0,0);
-       if (errno==ENOSYS)
-               exit(1);
-       else
-               exit(0);
+int main(){errno=0; setresgid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
                ]])],
-               [AC_MSG_RESULT([yes])],
-               [AC_DEFINE([BROKEN_SETRESGID], [1],
+               [AC_MSG_RESULT(yes)],
+               [AC_DEFINE(BROKEN_SETRESGID, 1,
                        [Define if your setresgid() is broken])
-                AC_MSG_RESULT([not implemented])],
+                AC_MSG_RESULT(not implemented)],
                [AC_MSG_WARN([cross compiling: not checking setresuid])]
        )
 ])
 
 dnl    Checks for time functions
-AC_CHECK_FUNCS([gettimeofday time])
+AC_CHECK_FUNCS(gettimeofday time)
 dnl    Checks for utmp functions
-AC_CHECK_FUNCS([endutent getutent getutid getutline pututline setutent])
-AC_CHECK_FUNCS([utmpname])
+AC_CHECK_FUNCS(endutent getutent getutid getutline pututline setutent)
+AC_CHECK_FUNCS(utmpname)
 dnl    Checks for utmpx functions
-AC_CHECK_FUNCS([endutxent getutxent getutxid getutxline getutxuser pututxline])
-AC_CHECK_FUNCS([setutxdb setutxent utmpxname])
+AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline getutxuser pututxline)
+AC_CHECK_FUNCS(setutxdb setutxent utmpxname)
 dnl    Checks for lastlog functions
-AC_CHECK_FUNCS([getlastlogxbyname])
+AC_CHECK_FUNCS(getlastlogxbyname)
 
-AC_CHECK_FUNC([daemon],
-       [AC_DEFINE([HAVE_DAEMON], [1], [Define if your libraries define daemon()])],
-       [AC_CHECK_LIB([bsd], [daemon],
-               [LIBS="$LIBS -lbsd"; AC_DEFINE([HAVE_DAEMON])])]
+AC_CHECK_FUNC(daemon,
+       [AC_DEFINE(HAVE_DAEMON, 1, [Define if your libraries define daemon()])],
+       [AC_CHECK_LIB(bsd, daemon,
+               [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 )
 
-AC_CHECK_FUNC([getpagesize],
-       [AC_DEFINE([HAVE_GETPAGESIZE], [1],
+AC_CHECK_FUNC(getpagesize,
+       [AC_DEFINE(HAVE_GETPAGESIZE, 1,
                [Define if your libraries define getpagesize()])],
-       [AC_CHECK_LIB([ucb], [getpagesize],
-               [LIBS="$LIBS -lucb"; AC_DEFINE([HAVE_GETPAGESIZE])])]
+       [AC_CHECK_LIB(ucb, getpagesize,
+               [LIBS="$LIBS -lucb"; AC_DEFINE(HAVE_GETPAGESIZE)])]
 )
 
 # Check for broken snprintf
 if test "x$ac_cv_func_snprintf" = "xyes" ; then
        AC_MSG_CHECKING([whether snprintf correctly terminates long strings])
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[ #include <stdio.h> ]],
-               [[
-       char b[5];
-       snprintf(b,5,"123456789");
-       exit(b[4]!='\0'); 
+               [AC_LANG_SOURCE([[
+#include <stdio.h>
+int main(void){char b[5];snprintf(b,5,"123456789");exit(b[4]!='\0');}
                ]])],
-               [AC_MSG_RESULT([yes])],
+               [AC_MSG_RESULT(yes)],
                [
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([BROKEN_SNPRINTF], [1],
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(BROKEN_SNPRINTF, 1,
                                [Define if your snprintf is busted])
                        AC_MSG_WARN([****** Your snprintf() function is broken, complain to your vendor])
                ],
@@ -1696,7 +1690,7 @@ if test "x$ac_cv_func_asprintf" != "xyes" && \
    test "x$ac_cv_func_vsnprintf" = "xyes" ; then
        AC_MSG_CHECKING([whether vsnprintf returns correct values on overflow])
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <sys/types.h>
 #include <stdio.h>
 #include <stdarg.h>
@@ -1707,14 +1701,15 @@ int x_snprintf(char *str,size_t count,const char *fmt,...)
        va_start(ap, fmt); ret = vsnprintf(str, count, fmt, ap); va_end(ap);
        return ret;
 }
-               ]], [[
+int main(void)
+{
        char x[1];
        exit(x_snprintf(x, 1, "%s %d", "hello", 12345) == 11 ? 0 : 1);
-               ]])],
-               [AC_MSG_RESULT([yes])],
+} ]])],
+               [AC_MSG_RESULT(yes)],
                [
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([BROKEN_SNPRINTF], [1],
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(BROKEN_SNPRINTF, 1,
                                [Define if your snprintf is busted])
                        AC_MSG_WARN([****** Your vsnprintf() function is broken, complain to your vendor])
                ],
@@ -1726,69 +1721,71 @@ fi
 # check that the fmt argument is const char * or just char *.
 # This is only useful for when BROKEN_SNPRINTF
 AC_MSG_CHECKING([whether snprintf can declare const char *fmt])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-int snprintf(char *a, size_t b, const char *c, ...) { return 0; }
-               ]], [[
-       snprintf(0, 0, 0);
-               ]])],
-   [AC_MSG_RESULT([yes])
-    AC_DEFINE([SNPRINTF_CONST], [const],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
+          int snprintf(char *a, size_t b, const char *c, ...) { return 0; }
+          int main(void) { snprintf(0, 0, 0); } 
+    ]])],
+   [AC_MSG_RESULT(yes)
+    AC_DEFINE(SNPRINTF_CONST, [const],
               [Define as const if snprintf() can declare const char *fmt])],
-   [AC_MSG_RESULT([no])
-    AC_DEFINE([SNPRINTF_CONST], [/* not const */])])
+   [AC_MSG_RESULT(no)
+    AC_DEFINE(SNPRINTF_CONST, [/* not const */])])
 
 # Check for missing getpeereid (or equiv) support
 NO_PEERCHECK=""
 if test "x$ac_cv_func_getpeereid" != "xyes" -a "x$ac_cv_func_getpeerucred" != "xyes"; then
        AC_MSG_CHECKING([whether system supports SO_PEERCRED getsockopt])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <sys/types.h>
-#include <sys/socket.h>]], [[int i = SO_PEERCRED;]])],
-               [ AC_MSG_RESULT([yes])
-                 AC_DEFINE([HAVE_SO_PEERCRED], [1], [Have PEERCRED socket option])
-               ], [AC_MSG_RESULT([no])
-               NO_PEERCHECK=1
-        ])
+       AC_TRY_COMPILE(
+               [#include <sys/types.h>
+                #include <sys/socket.h>],
+               [int i = SO_PEERCRED;],
+               [ AC_MSG_RESULT(yes)
+                 AC_DEFINE(HAVE_SO_PEERCRED, 1, [Have PEERCRED socket option])
+               ],
+               [AC_MSG_RESULT(no)
+               NO_PEERCHECK=1]
+        )
 fi
 
 dnl see whether mkstemp() requires XXXXXX
 if test "x$ac_cv_func_mkdtemp" = "xyes" ; then
 AC_MSG_CHECKING([for (overly) strict mkstemp])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <stdlib.h>
-       ]], [[
-       char template[]="conftest.mkstemp-test";
-       if (mkstemp(template) == -1)
-               exit(1);
-       unlink(template);
-       exit(0);
+main() { char template[]="conftest.mkstemp-test";
+if (mkstemp(template) == -1)
+       exit(1);
+unlink(template); exit(0);
+}
        ]])],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
        ],
        [
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([HAVE_STRICT_MKSTEMP], [1], [Silly mkstemp()])
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_STRICT_MKSTEMP, 1, [Silly mkstemp()])
        ],
        [
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([HAVE_STRICT_MKSTEMP])
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_STRICT_MKSTEMP)
        ]
 )
 fi
 
 dnl make sure that openpty does not reacquire controlling terminal
 if test ! -z "$check_for_openpty_ctty_bug"; then
-       AC_MSG_CHECKING([if openpty correctly handles controlling tty])
+       AC_MSG_CHECKING(if openpty correctly handles controlling tty)
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <sys/fcntl.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-               ]], [[
+
+int
+main()
+{
        pid_t pid;
        int fd, ptyfd, ttyfd, status;
 
@@ -1811,25 +1808,26 @@ if test ! -z "$check_for_openpty_ctty_bug"; then
                else
                        exit(0);        /* Did not acquire ctty: OK */
        }
+}
                ]])],
                [
-                       AC_MSG_RESULT([yes])
+                       AC_MSG_RESULT(yes)
                ],
                [
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([SSHD_ACQUIRES_CTTY])
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(SSHD_ACQUIRES_CTTY)
                ],
                [
-                       AC_MSG_RESULT([cross-compiling, assuming yes])
+                       AC_MSG_RESULT(cross-compiling, assuming yes)
                ]
        )
 fi
 
 if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
     test "x$check_for_hpux_broken_getaddrinfo" = "x1"; then
-       AC_MSG_CHECKING([if getaddrinfo seems to work])
+       AC_MSG_CHECKING(if getaddrinfo seems to work)
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <sys/socket.h>
 #include <netdb.h>
@@ -1837,7 +1835,10 @@ if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
 #include <netinet/in.h>
 
 #define TEST_PORT "2222"
-               ]], [[
+
+int
+main(void)
+{
        int err, sock;
        struct addrinfo *gai_ai, *ai, hints;
        char ntop[NI_MAXHOST], strport[NI_MAXSERV], *name = NULL;
@@ -1879,25 +1880,26 @@ if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
                }
        }
        exit(0);
+}
                ]])],
                [
-                       AC_MSG_RESULT([yes])
+                       AC_MSG_RESULT(yes)
                ],
                [
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([BROKEN_GETADDRINFO])
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(BROKEN_GETADDRINFO)
                ],
                [
-                       AC_MSG_RESULT([cross-compiling, assuming yes])
+                       AC_MSG_RESULT(cross-compiling, assuming yes)
                ]
        )
 fi
 
 if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
     test "x$check_for_aix_broken_getaddrinfo" = "x1"; then
-       AC_MSG_CHECKING([if getaddrinfo seems to work])
+       AC_MSG_CHECKING(if getaddrinfo seems to work)
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <sys/socket.h>
 #include <netdb.h>
@@ -1905,7 +1907,10 @@ if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
 #include <netinet/in.h>
 
 #define TEST_PORT "2222"
-               ]], [[
+
+int
+main(void)
+{
        int err, sock;
        struct addrinfo *gai_ai, *ai, hints;
        char ntop[NI_MAXHOST], strport[NI_MAXSERV], *name = NULL;
@@ -1935,33 +1940,37 @@ if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
                }
        }
        exit(0);
+}
                ]])],
                [
-                       AC_MSG_RESULT([yes])
-                       AC_DEFINE([AIX_GETNAMEINFO_HACK], [1],
+                       AC_MSG_RESULT(yes)
+                       AC_DEFINE(AIX_GETNAMEINFO_HACK, 1,
                                [Define if you have a getaddrinfo that fails
                                for the all-zeros IPv6 address])
                ],
                [
-                       AC_MSG_RESULT([no])
-                       AC_DEFINE([BROKEN_GETADDRINFO])
+                       AC_MSG_RESULT(no)
+                       AC_DEFINE(BROKEN_GETADDRINFO)
                ],
                [
-                       AC_MSG_RESULT([cross-compiling, assuming no])
+                       AC_MSG_RESULT(cross-compiling, assuming no)
                ]
        )
 fi
 
 if test "x$check_for_conflicting_getspnam" = "x1"; then
-       AC_MSG_CHECKING([for conflicting getspnam in shadow.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <shadow.h> ]],
-               [[ exit(0); ]])],
+       AC_MSG_CHECKING(for conflicting getspnam in shadow.h)
+       AC_COMPILE_IFELSE(
                [
-                       AC_MSG_RESULT([no])
+#include <shadow.h>
+int main(void) {exit(0);}
                ],
                [
-                       AC_MSG_RESULT([yes])
-                       AC_DEFINE([GETSPNAM_CONFLICTING_DEFS], [1],
+                       AC_MSG_RESULT(no)
+               ],
+               [
+                       AC_MSG_RESULT(yes)
+                       AC_DEFINE(GETSPNAM_CONFLICTING_DEFS, 1,
                            [Conflicting defs for getspnam])
                ]
        )
@@ -1972,7 +1981,7 @@ AC_FUNC_GETPGRP
 # Search for OpenSSL
 saved_CPPFLAGS="$CPPFLAGS"
 saved_LDFLAGS="$LDFLAGS"
-AC_ARG_WITH([ssl-dir],
+AC_ARG_WITH(ssl-dir,
        [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
        [
                if test "x$withval" != "xno" ; then
@@ -2008,9 +2017,9 @@ AC_ARG_WITH([ssl-dir],
        ]
 )
 LIBS="-lcrypto $LIBS"
-AC_TRY_LINK_FUNC([RAND_add], [AC_DEFINE([HAVE_OPENSSL], [1],
+AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL, 1,
        [Define if your ssl headers are included
-       with #include <openssl/header.h>])],
+       with #include <openssl/header.h>]),
        [
                dnl Check default openssl install dir
                if test -n "${need_dash_r}"; then
@@ -2020,8 +2029,8 @@ AC_TRY_LINK_FUNC([RAND_add], [AC_DEFINE([HAVE_OPENSSL], [1],
                fi
                CPPFLAGS="-I/usr/local/ssl/include ${saved_CPPFLAGS}"
                AC_CHECK_HEADER([openssl/opensslv.h], ,
-                   [AC_MSG_ERROR([*** OpenSSL headers missing - please install first or check config.log ***])])
-               AC_TRY_LINK_FUNC([RAND_add], [AC_DEFINE([HAVE_OPENSSL])],
+                   AC_MSG_ERROR([*** OpenSSL headers missing - please install first or check config.log ***]))
+               AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
                        [
                                AC_MSG_ERROR([*** Can't find recent OpenSSL libcrypto (see config.log for details) ***])
                        ]
@@ -2032,12 +2041,12 @@ AC_TRY_LINK_FUNC([RAND_add], [AC_DEFINE([HAVE_OPENSSL], [1],
 # Determine OpenSSL header version
 AC_MSG_CHECKING([OpenSSL header version])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
 #include <openssl/opensslv.h>
 #define DATA "conftest.sslincver"
-       ]], [[
+int main(void) {
        FILE *fd;
        int rc;
 
@@ -2049,14 +2058,15 @@ AC_RUN_IFELSE(
                exit(1);
 
        exit(0);
+}
        ]])],
        [
                ssl_header_ver=`cat conftest.sslincver`
-               AC_MSG_RESULT([$ssl_header_ver])
+               AC_MSG_RESULT($ssl_header_ver)
        ],
        [
-               AC_MSG_RESULT([not found])
-               AC_MSG_ERROR([OpenSSL version header not found.])
+               AC_MSG_RESULT(not found)
+               AC_MSG_ERROR(OpenSSL version header not found.)
        ],
        [
                AC_MSG_WARN([cross compiling: not checking])
@@ -2066,13 +2076,13 @@ AC_RUN_IFELSE(
 # Determine OpenSSL library version
 AC_MSG_CHECKING([OpenSSL library version])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
 #include <openssl/opensslv.h>
 #include <openssl/crypto.h>
 #define DATA "conftest.ssllibver"
-       ]], [[
+int main(void) {
        FILE *fd;
        int rc;
 
@@ -2084,21 +2094,22 @@ AC_RUN_IFELSE(
                exit(1);
 
        exit(0);
+}
        ]])],
        [
                ssl_library_ver=`cat conftest.ssllibver`
-               AC_MSG_RESULT([$ssl_library_ver])
+               AC_MSG_RESULT($ssl_library_ver)
        ],
        [
-               AC_MSG_RESULT([not found])
-               AC_MSG_ERROR([OpenSSL library not found.])
+               AC_MSG_RESULT(not found)
+               AC_MSG_ERROR(OpenSSL library not found.)
        ],
        [
                AC_MSG_WARN([cross compiling: not checking])
        ]
 )
 
-AC_ARG_WITH([openssl-header-check],
+AC_ARG_WITH(openssl-header-check,
        [  --without-openssl-header-check Disable OpenSSL version consistency check],
        [  if test "x$withval" = "xno" ; then
                openssl_check_nonfatal=1
@@ -2109,17 +2120,16 @@ AC_ARG_WITH([openssl-header-check],
 # Sanity check OpenSSL headers
 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <string.h>
 #include <openssl/opensslv.h>
-       ]], [[
-       exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1);
+int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
        ]])],
        [
-               AC_MSG_RESULT([yes])
+               AC_MSG_RESULT(yes)
        ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                if test "x$openssl_check_nonfatal" = "x"; then
                        AC_MSG_ERROR([Your OpenSSL headers do not match your
 library. Check config.log for details.
@@ -2140,84 +2150,85 @@ Also see contrib/findssl.sh for help identifying header/library mismatches.])
 
 AC_MSG_CHECKING([if programs using OpenSSL functions will link])
 AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM([[ #include <openssl/evp.h> ]],
-       [[ SSLeay_add_all_algorithms(); ]])],
+       [AC_LANG_SOURCE([[
+#include <openssl/evp.h>
+int main(void) { SSLeay_add_all_algorithms(); }
+       ]])],
        [
-               AC_MSG_RESULT([yes])
+               AC_MSG_RESULT(yes)
        ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                saved_LIBS="$LIBS"
                LIBS="$LIBS -ldl"
                AC_MSG_CHECKING([if programs using OpenSSL need -ldl])
                AC_LINK_IFELSE(
-                       [AC_LANG_PROGRAM([[ #include <openssl/evp.h> ]],
-                       [[ SSLeay_add_all_algorithms(); ]])],
+                       [AC_LANG_SOURCE([[
+#include <openssl/evp.h>
+int main(void) { SSLeay_add_all_algorithms(); }
+                       ]])],
                        [
-                               AC_MSG_RESULT([yes])
+                               AC_MSG_RESULT(yes)
                        ],
                        [
-                               AC_MSG_RESULT([no])
+                               AC_MSG_RESULT(no)
                                LIBS="$saved_LIBS"
                        ]
                )
        ]
 )
 
-AC_CHECK_FUNCS([RSA_generate_key_ex DSA_generate_parameters_ex BN_is_prime_ex RSA_get_default_method])
+AC_CHECK_FUNCS(RSA_generate_key_ex DSA_generate_parameters_ex BN_is_prime_ex RSA_get_default_method)
 
-AC_ARG_WITH([ssl-engine],
+AC_ARG_WITH(ssl-engine,
        [  --with-ssl-engine       Enable OpenSSL (hardware) ENGINE support ],
        [ if test "x$withval" != "xno" ; then
-               AC_MSG_CHECKING([for OpenSSL ENGINE support])
-               AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <openssl/engine.h>
-                       ]], [[
-       ENGINE_load_builtin_engines();
-       ENGINE_register_all_complete();
-                       ]])],
-                       [ AC_MSG_RESULT([yes])
-                         AC_DEFINE([USE_OPENSSL_ENGINE], [1],
+               AC_MSG_CHECKING(for OpenSSL ENGINE support)
+               AC_TRY_COMPILE(
+                       [ #include <openssl/engine.h>],
+                       [
+ENGINE_load_builtin_engines();ENGINE_register_all_complete();
+                       ],
+                       [ AC_MSG_RESULT(yes)
+                         AC_DEFINE(USE_OPENSSL_ENGINE, 1,
                             [Enable OpenSSL engine support])
-                       ], [ AC_MSG_ERROR([OpenSSL ENGINE support not found])
-               ])
+                       ],
+                       [ AC_MSG_ERROR(OpenSSL ENGINE support not found)]
+               )
          fi ]
 )
 
 # Check for OpenSSL without EVP_aes_{192,256}_cbc
 AC_MSG_CHECKING([whether OpenSSL has crippled AES support])
 AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <string.h>
 #include <openssl/evp.h>
-       ]], [[
-       exit(EVP_aes_192_cbc() == NULL || EVP_aes_256_cbc() == NULL);
+int main(void) { exit(EVP_aes_192_cbc() == NULL || EVP_aes_256_cbc() == NULL);}
        ]])],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
        ],
        [
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([OPENSSL_LOBOTOMISED_AES], [1],
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(OPENSSL_LOBOTOMISED_AES, 1,
                    [libcrypto is missing AES 192 and 256 bit functions])
        ]
 )
 
 AC_MSG_CHECKING([if EVP_DigestUpdate returns an int])
 AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <string.h>
 #include <openssl/evp.h>
-       ]], [[
-       if(EVP_DigestUpdate(NULL, NULL,0))
-               exit(0);
+int main(void) { if(EVP_DigestUpdate(NULL, NULL,0)) exit(0); }
        ]])],
        [
-               AC_MSG_RESULT([yes])
+               AC_MSG_RESULT(yes)
        ],
        [
-               AC_MSG_RESULT([no])
-               AC_DEFINE([OPENSSL_EVP_DIGESTUPDATE_VOID], [1],
+               AC_MSG_RESULT(no)
+               AC_DEFINE(OPENSSL_EVP_DIGESTUPDATE_VOID, 1,
                    [Define if EVP_DigestUpdate returns void])
        ]
 )
@@ -2225,24 +2236,24 @@ AC_LINK_IFELSE(
 # Some systems want crypt() from libcrypt, *not* the version in OpenSSL,
 # because the system crypt() is more featureful.
 if test "x$check_for_libcrypt_before" = "x1"; then
-       AC_CHECK_LIB([crypt], [crypt])
+       AC_CHECK_LIB(crypt, crypt)
 fi
 
 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
 # version in OpenSSL.
 if test "x$check_for_libcrypt_later" = "x1"; then
-       AC_CHECK_LIB([crypt], [crypt], [LIBS="$LIBS -lcrypt"])
+       AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
 fi
 
 # Search for SHA256 support in libc and/or OpenSSL
-AC_CHECK_FUNCS([SHA256_Update EVP_sha256], [TEST_SSH_SHA256=yes],
+AC_CHECK_FUNCS(SHA256_Update EVP_sha256, [TEST_SSH_SHA256=yes],
     [TEST_SSH_SHA256=no])
-AC_SUBST([TEST_SSH_SHA256])
+AC_SUBST(TEST_SSH_SHA256)
 
 # Check complete ECC support in OpenSSL
 AC_MSG_CHECKING([whether OpenSSL has complete ECC support])
 AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <openssl/ec.h>
 #include <openssl/ecdh.h>
 #include <openssl/ecdsa.h>
@@ -2252,31 +2263,32 @@ AC_LINK_IFELSE(
 #if OPENSSL_VERSION_NUMBER < 0x0090807f /* 0.9.8g */
 # error "OpenSSL < 0.9.8g has unreliable ECC code"
 #endif
-       ]], [[
+int main(void) {
        EC_KEY *e = EC_KEY_new_by_curve_name(NID_secp521r1);
        const EVP_MD *m = EVP_sha512(); /* We need this too */
+}
        ]])],
        [
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([OPENSSL_HAS_ECC], [1],
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(OPENSSL_HAS_ECC, 1,
                    [libcrypto includes complete ECC support])
                TEST_SSH_ECC=yes
                COMMENT_OUT_ECC=""
        ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                TEST_SSH_ECC=no
                COMMENT_OUT_ECC="#no ecc#"
        ]
 )
-AC_SUBST([TEST_SSH_ECC])
-AC_SUBST([COMMENT_OUT_ECC])
+AC_SUBST(TEST_SSH_ECC)
+AC_SUBST(COMMENT_OUT_ECC)
 
 saved_LIBS="$LIBS"
-AC_CHECK_LIB([iaf], [ia_openinfo], [
+AC_CHECK_LIB(iaf, ia_openinfo, [
        LIBS="$LIBS -liaf"
-       AC_CHECK_FUNCS([set_id], [SSHDLIBS="$SSHDLIBS -liaf"
-                               AC_DEFINE([HAVE_LIBIAF], [1],
+       AC_CHECK_FUNCS(set_id, [SSHDLIBS="$SSHDLIBS -liaf"
+                               AC_DEFINE(HAVE_LIBIAF, 1,
                        [Define if system has libiaf that supports set_id])
                                ])
 ])
@@ -2287,18 +2299,17 @@ LIBS="$saved_LIBS"
 # Check wheter OpenSSL seeds itself
 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
 AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM([[
+       [AC_LANG_SOURCE([[
 #include <string.h>
 #include <openssl/rand.h>
-       ]], [[
-       exit(RAND_status() == 1 ? 0 : 1);
+int main(void) { exit(RAND_status() == 1 ? 0 : 1); }
        ]])],
        [
                OPENSSL_SEEDS_ITSELF=yes
-               AC_MSG_RESULT([yes])
+               AC_MSG_RESULT(yes)
        ],
        [
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
                # Default to use of the rand helper if OpenSSL doesn't
                # seed itself
                USE_RAND_HELPER=yes
@@ -2313,7 +2324,7 @@ AC_RUN_IFELSE(
 
 # Check for PAM libs
 PAM_MSG="no"
-AC_ARG_WITH([pam],
+AC_ARG_WITH(pam,
        [  --with-pam              Enable PAM support ],
        [
                if test "x$withval" != "xno" ; then
@@ -2323,16 +2334,16 @@ AC_ARG_WITH([pam],
                        fi
 
                        saved_LIBS="$LIBS"
-                       AC_CHECK_LIB([dl], [dlopen], , )
-                       AC_CHECK_LIB([pam], [pam_set_item], , [AC_MSG_ERROR([*** libpam missing])])
-                       AC_CHECK_FUNCS([pam_getenvlist])
-                       AC_CHECK_FUNCS([pam_putenv])
+                       AC_CHECK_LIB(dl, dlopen, , )
+                       AC_CHECK_LIB(pam, pam_set_item, , AC_MSG_ERROR([*** libpam missing]))
+                       AC_CHECK_FUNCS(pam_getenvlist)
+                       AC_CHECK_FUNCS(pam_putenv)
                        LIBS="$saved_LIBS"
 
                        PAM_MSG="yes"
 
                        SSHDLIBS="$SSHDLIBS -lpam"
-                       AC_DEFINE([USE_PAM], [1],
+                       AC_DEFINE(USE_PAM, 1,
                                [Define if you want to enable PAM support])
 
                        if test $ac_cv_lib_dl_dlopen = yes; then
@@ -2353,27 +2364,29 @@ AC_ARG_WITH([pam],
 if test "x$PAM_MSG" = "xyes" ; then
        # Check PAM strerror arguments (old PAM)
        AC_MSG_CHECKING([whether pam_strerror takes only one argument])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <stdlib.h>
 #if defined(HAVE_SECURITY_PAM_APPL_H)
 #include <security/pam_appl.h>
 #elif defined (HAVE_PAM_PAM_APPL_H)
 #include <pam/pam_appl.h>
 #endif
-               ]], [[
-(void)pam_strerror((pam_handle_t *)NULL, -1);
-               ]])], [AC_MSG_RESULT([no])], [
-                       AC_DEFINE([HAVE_OLD_PAM], [1],
+               ],
+               [(void)pam_strerror((pam_handle_t *)NULL, -1);],
+               [AC_MSG_RESULT(no)],
+               [
+                       AC_DEFINE(HAVE_OLD_PAM, 1,
                                [Define if you have an old version of PAM
                                which takes only one argument to pam_strerror])
-                       AC_MSG_RESULT([yes])
+                       AC_MSG_RESULT(yes)
                        PAM_MSG="yes (old library)"
-               
-       ])
+               ]
+       )
 fi
 
 # Do we want to force the use of the rand helper?
-AC_ARG_WITH([rand-helper],
+AC_ARG_WITH(rand-helper,
        [  --with-rand-helper      Use subprocess to gather strong randomness ],
        [
                if test "x$withval" = "xno" ; then
@@ -2393,7 +2406,7 @@ AC_ARG_WITH([rand-helper],
 # Which randomness source do we use?
 if test ! -z "$OPENSSL_SEEDS_ITSELF" && test -z "$USE_RAND_HELPER" ; then
        # OpenSSL only
-       AC_DEFINE([OPENSSL_PRNG_ONLY], [1],
+       AC_DEFINE(OPENSSL_PRNG_ONLY, 1,
                [Define if you want OpenSSL's internally seeded PRNG only])
        RAND_MSG="OpenSSL internal ONLY"
        INSTALL_SSH_RAND_HELPER=""
@@ -2402,12 +2415,12 @@ elif test ! -z "$USE_RAND_HELPER" ; then
        RAND_MSG="ssh-rand-helper"
        INSTALL_SSH_RAND_HELPER="yes"
 fi
-AC_SUBST([INSTALL_SSH_RAND_HELPER])
+AC_SUBST(INSTALL_SSH_RAND_HELPER)
 
 ### Configuration of ssh-rand-helper
 
 # PRNGD TCP socket
-AC_ARG_WITH([prngd-port],
+AC_ARG_WITH(prngd-port,
        [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
        [
                case "$withval" in
@@ -2417,19 +2430,19 @@ AC_ARG_WITH([prngd-port],
                [[0-9]]*)
                        ;;
                *)
-                       AC_MSG_ERROR([You must specify a numeric port number for --with-prngd-port])
+                       AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
                        ;;
                esac
                if test ! -z "$withval" ; then
                        PRNGD_PORT="$withval"
-                       AC_DEFINE_UNQUOTED([PRNGD_PORT], [$PRNGD_PORT],
+                       AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT,
                                [Port number of PRNGD/EGD random number socket])
                fi
        ]
 )
 
 # PRNGD Unix domain socket
-AC_ARG_WITH([prngd-socket],
+AC_ARG_WITH(prngd-socket,
        [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
        [
                case "$withval" in
@@ -2442,38 +2455,38 @@ AC_ARG_WITH([prngd-socket],
                /*)
                        ;;
                *)
-                       AC_MSG_ERROR([You must specify an absolute path to the entropy socket])
+                       AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
                        ;;
                esac
 
                if test ! -z "$withval" ; then
                        if test ! -z "$PRNGD_PORT" ; then
-                               AC_MSG_ERROR([You may not specify both a PRNGD/EGD port and socket])
+                               AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
                        fi
                        if test ! -r "$withval" ; then
-                               AC_MSG_WARN([Entropy socket is not readable])
+                               AC_MSG_WARN(Entropy socket is not readable)
                        fi
                        PRNGD_SOCKET="$withval"
-                       AC_DEFINE_UNQUOTED([PRNGD_SOCKET], ["$PRNGD_SOCKET"],
+                       AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET",
                                [Location of PRNGD/EGD random number socket])
                fi
        ],
        [
                # Check for existing socket only if we don't have a random device already
                if test "$USE_RAND_HELPER" = yes ; then
-                       AC_MSG_CHECKING([for PRNGD/EGD socket])
+                       AC_MSG_CHECKING(for PRNGD/EGD socket)
                        # Insert other locations here
                        for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
                                if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
                                        PRNGD_SOCKET="$sock"
-                                       AC_DEFINE_UNQUOTED([PRNGD_SOCKET], ["$PRNGD_SOCKET"])
+                                       AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
                                        break;
                                fi
                        done
                        if test ! -z "$PRNGD_SOCKET" ; then
-                               AC_MSG_RESULT([$PRNGD_SOCKET])
+                               AC_MSG_RESULT($PRNGD_SOCKET)
                        else
-                               AC_MSG_RESULT([not found])
+                               AC_MSG_RESULT(not found)
                        fi
                fi
        ]
@@ -2481,7 +2494,7 @@ AC_ARG_WITH([prngd-socket],
 
 # Change default command timeout for hashing entropy source
 entropy_timeout=200
-AC_ARG_WITH([entropy-timeout],
+AC_ARG_WITH(entropy-timeout,
        [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -2490,11 +2503,11 @@ AC_ARG_WITH([entropy-timeout],
                fi
        ]
 )
-AC_DEFINE_UNQUOTED([ENTROPY_TIMEOUT_MSEC], [$entropy_timeout],
+AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout,
        [Builtin PRNG command timeout])
 
 SSH_PRIVSEP_USER=sshd
-AC_ARG_WITH([privsep-user],
+AC_ARG_WITH(privsep-user,
        [  --with-privsep-user=user Specify non-privileged user for privilege separation],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -2503,9 +2516,9 @@ AC_ARG_WITH([privsep-user],
                fi
        ]
 )
-AC_DEFINE_UNQUOTED([SSH_PRIVSEP_USER], ["$SSH_PRIVSEP_USER"],
+AC_DEFINE_UNQUOTED(SSH_PRIVSEP_USER, "$SSH_PRIVSEP_USER",
        [non-privileged user for privilege separation])
-AC_SUBST([SSH_PRIVSEP_USER])
+AC_SUBST(SSH_PRIVSEP_USER)
 
 # We do this little dance with the search path to insure
 # that programs that we select for use by installed programs
@@ -2522,22 +2535,22 @@ test -d /usr/sbin && PATH=$PATH:/usr/sbin
 PATH=$PATH:/etc:$OPATH
 
 # These programs are used by the command hashing source to gather entropy
-OSSH_PATH_ENTROPY_PROG([PROG_LS], [ls])
-OSSH_PATH_ENTROPY_PROG([PROG_NETSTAT], [netstat])
-OSSH_PATH_ENTROPY_PROG([PROG_ARP], [arp])
-OSSH_PATH_ENTROPY_PROG([PROG_IFCONFIG], [ifconfig])
-OSSH_PATH_ENTROPY_PROG([PROG_JSTAT], [jstat])
-OSSH_PATH_ENTROPY_PROG([PROG_PS], [ps])
-OSSH_PATH_ENTROPY_PROG([PROG_SAR], [sar])
-OSSH_PATH_ENTROPY_PROG([PROG_W], [w])
-OSSH_PATH_ENTROPY_PROG([PROG_WHO], [who])
-OSSH_PATH_ENTROPY_PROG([PROG_LAST], [last])
-OSSH_PATH_ENTROPY_PROG([PROG_LASTLOG], [lastlog])
-OSSH_PATH_ENTROPY_PROG([PROG_DF], [df])
-OSSH_PATH_ENTROPY_PROG([PROG_VMSTAT], [vmstat])
-OSSH_PATH_ENTROPY_PROG([PROG_UPTIME], [uptime])
-OSSH_PATH_ENTROPY_PROG([PROG_IPCS], [ipcs])
-OSSH_PATH_ENTROPY_PROG([PROG_TAIL], [tail])
+OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
+OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
+OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
+OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
+OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
+OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
+OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
+OSSH_PATH_ENTROPY_PROG(PROG_W, w)
+OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
+OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
+OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
+OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
+OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
+OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
+OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
+OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
 # restore PATH
 PATH=$OPATH
 
@@ -2554,7 +2567,7 @@ if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
                INSTALL_SSH_PRNG_CMDS="yes"
        fi
 fi
-AC_SUBST([INSTALL_SSH_PRNG_CMDS])
+AC_SUBST(INSTALL_SSH_PRNG_CMDS)
 
 
 # Cheap hack to ensure NEWS-OS libraries are arranged right.
@@ -2566,11 +2579,11 @@ fi
 AC_CHECK_TYPES([long long, unsigned long long, long double])
 
 # Check datatype sizes
-AC_CHECK_SIZEOF([char], [1])
-AC_CHECK_SIZEOF([short int], [2])
-AC_CHECK_SIZEOF([int], [4])
-AC_CHECK_SIZEOF([long int], [4])
-AC_CHECK_SIZEOF([long long int], [8])
+AC_CHECK_SIZEOF(char, 1)
+AC_CHECK_SIZEOF(short int, 2)
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(long int, 4)
+AC_CHECK_SIZEOF(long long int, 8)
 
 # Sanity check long long for some platforms (AIX)
 if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
@@ -2581,7 +2594,7 @@ fi
 if test -z "$have_llong_max"; then
        AC_MSG_CHECKING([for max value of long long])
        AC_RUN_IFELSE(
-               [AC_LANG_PROGRAM([[
+               [AC_LANG_SOURCE([[
 #include <stdio.h>
 /* Why is this so damn hard? */
 #ifdef __GNUC__
@@ -2617,7 +2630,8 @@ fprint_ll(FILE *f, long long n)
                return -1;
        return 0;
 }
-               ]], [[
+
+int main(void) {
        FILE *f;
        long long i, llmin, llmax = 0;
 
@@ -2651,21 +2665,22 @@ fprint_ll(FILE *f, long long n)
        if (fclose(f) < 0)
                exit(5);
        exit(0);
+}
                ]])],
                [
                        llong_min=`$AWK '{print $1}' conftest.llminmax`
                        llong_max=`$AWK '{print $2}' conftest.llminmax`
 
-                       AC_MSG_RESULT([$llong_max])
-                       AC_DEFINE_UNQUOTED([LLONG_MAX], [${llong_max}LL],
+                       AC_MSG_RESULT($llong_max)
+                       AC_DEFINE_UNQUOTED(LLONG_MAX, [${llong_max}LL],
                            [max value of long long calculated by configure])
                        AC_MSG_CHECKING([for min value of long long])
-                       AC_MSG_RESULT([$llong_min])
-                       AC_DEFINE_UNQUOTED([LLONG_MIN], [${llong_min}LL],
+                       AC_MSG_RESULT($llong_min)
+                       AC_DEFINE_UNQUOTED(LLONG_MIN, [${llong_min}LL],
                            [min value of long long calculated by configure])
                ],
                [
-                       AC_MSG_RESULT([not found])
+                       AC_MSG_RESULT(not found)
                ],
                [
                        AC_MSG_WARN([cross compiling: not checking])
@@ -2676,24 +2691,28 @@ fi
 
 # More checks for data types
 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ u_int a; a = 1;]])],
-       [ ac_cv_have_u_int="yes" ], [ ac_cv_have_u_int="no" 
-       ])
+       AC_TRY_COMPILE(
+               [ #include <sys/types.h> ],
+               [ u_int a; a = 1;],
+               [ ac_cv_have_u_int="yes" ],
+               [ ac_cv_have_u_int="no" ]
+       )
 ])
 if test "x$ac_cv_have_u_int" = "xyes" ; then
-       AC_DEFINE([HAVE_U_INT], [1], [define if you have u_int data type])
+       AC_DEFINE(HAVE_U_INT, 1, [define if you have u_int data type])
        have_u_int=1
 fi
 
 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ int8_t a; int16_t b; int32_t c; a = b = c = 1;]])],
-       [ ac_cv_have_intxx_t="yes" ], [ ac_cv_have_intxx_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [ #include <sys/types.h> ],
+               [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
+               [ ac_cv_have_intxx_t="yes" ],
+               [ ac_cv_have_intxx_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
-       AC_DEFINE([HAVE_INTXX_T], [1], [define if you have intxx_t data type])
+       AC_DEFINE(HAVE_INTXX_T, 1, [define if you have intxx_t data type])
        have_intxx_t=1
 fi
 
@@ -2701,17 +2720,20 @@ if (test -z "$have_intxx_t" && \
           test "x$ac_cv_header_stdint_h" = "xyes")
 then
     AC_MSG_CHECKING([for intXX_t types in stdint.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdint.h> ]],
-       [[ int8_t a; int16_t b; int32_t c; a = b = c = 1;]])],
+       AC_TRY_COMPILE(
+               [ #include <stdint.h> ],
+               [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
                [
-                       AC_DEFINE([HAVE_INTXX_T])
-                       AC_MSG_RESULT([yes])
-               ], [ AC_MSG_RESULT([no]) 
-       ])
+                       AC_DEFINE(HAVE_INTXX_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [ AC_MSG_RESULT(no) ]
+       )
 fi
 
 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #ifdef HAVE_STDINT_H
 # include <stdint.h>
@@ -2720,124 +2742,139 @@ AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
 #ifdef HAVE_SYS_BITYPES_H
 # include <sys/bitypes.h>
 #endif
-               ]], [[
-int64_t a; a = 1;
-               ]])],
-       [ ac_cv_have_int64_t="yes" ], [ ac_cv_have_int64_t="no" 
-       ])
+               ],
+               [ int64_t a; a = 1;],
+               [ ac_cv_have_int64_t="yes" ],
+               [ ac_cv_have_int64_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_int64_t" = "xyes" ; then
-       AC_DEFINE([HAVE_INT64_T], [1], [define if you have int64_t data type])
+       AC_DEFINE(HAVE_INT64_T, 1, [define if you have int64_t data type])
 fi
 
 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;]])],
-       [ ac_cv_have_u_intxx_t="yes" ], [ ac_cv_have_u_intxx_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [ #include <sys/types.h> ],
+               [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
+               [ ac_cv_have_u_intxx_t="yes" ],
+               [ ac_cv_have_u_intxx_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
-       AC_DEFINE([HAVE_U_INTXX_T], [1], [define if you have u_intxx_t data type])
+       AC_DEFINE(HAVE_U_INTXX_T, 1, [define if you have u_intxx_t data type])
        have_u_intxx_t=1
 fi
 
 if test -z "$have_u_intxx_t" ; then
     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/socket.h> ]],
-       [[ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;]])],
+       AC_TRY_COMPILE(
+               [ #include <sys/socket.h> ],
+               [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
                [
-                       AC_DEFINE([HAVE_U_INTXX_T])
-                       AC_MSG_RESULT([yes])
-               ], [ AC_MSG_RESULT([no]) 
-       ])
+                       AC_DEFINE(HAVE_U_INTXX_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [ AC_MSG_RESULT(no) ]
+       )
 fi
 
 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ u_int64_t a; a = 1;]])],
-       [ ac_cv_have_u_int64_t="yes" ], [ ac_cv_have_u_int64_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [ #include <sys/types.h> ],
+               [ u_int64_t a; a = 1;],
+               [ ac_cv_have_u_int64_t="yes" ],
+               [ ac_cv_have_u_int64_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
-       AC_DEFINE([HAVE_U_INT64_T], [1], [define if you have u_int64_t data type])
+       AC_DEFINE(HAVE_U_INT64_T, 1, [define if you have u_int64_t data type])
        have_u_int64_t=1
 fi
 
 if test -z "$have_u_int64_t" ; then
     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/bitypes.h> ]],
-       [[ u_int64_t a; a = 1]])],
+       AC_TRY_COMPILE(
+               [ #include <sys/bitypes.h> ],
+               [ u_int64_t a; a = 1],
                [
-                       AC_DEFINE([HAVE_U_INT64_T])
-                       AC_MSG_RESULT([yes])
-               ], [ AC_MSG_RESULT([no]) 
-       ])
+                       AC_DEFINE(HAVE_U_INT64_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [ AC_MSG_RESULT(no) ]
+       )
 fi
 
 if test -z "$have_u_intxx_t" ; then
        AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
-               AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+               AC_TRY_COMPILE(
+                       [
 #include <sys/types.h>
-                       ]], [[
-       uint8_t a;
-       uint16_t b;
-       uint32_t c;
-       a = b = c = 1;
-                       ]])],
-               [ ac_cv_have_uintxx_t="yes" ], [ ac_cv_have_uintxx_t="no" 
-               ])
+                       ],
+                       [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
+                       [ ac_cv_have_uintxx_t="yes" ],
+                       [ ac_cv_have_uintxx_t="no" ]
+               )
        ])
        if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
-               AC_DEFINE([HAVE_UINTXX_T], [1],
+               AC_DEFINE(HAVE_UINTXX_T, 1,
                        [define if you have uintxx_t data type])
        fi
 fi
 
 if test -z "$have_uintxx_t" ; then
     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdint.h> ]],
-       [[ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;]])],
+       AC_TRY_COMPILE(
+               [ #include <stdint.h> ],
+               [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
                [
-                       AC_DEFINE([HAVE_UINTXX_T])
-                       AC_MSG_RESULT([yes])
-               ], [ AC_MSG_RESULT([no]) 
-       ])
+                       AC_DEFINE(HAVE_UINTXX_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [ AC_MSG_RESULT(no) ]
+       )
 fi
 
 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
           test "x$ac_cv_header_sys_bitypes_h" = "xyes")
 then
        AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/bitypes.h>
-               ]], [[
+               ],
+               [
                        int8_t a; int16_t b; int32_t c;
                        u_int8_t e; u_int16_t f; u_int32_t g;
                        a = b = c = e = f = g = 1;
-               ]])],
+               ],
                [
-                       AC_DEFINE([HAVE_U_INTXX_T])
-                       AC_DEFINE([HAVE_INTXX_T])
-                       AC_MSG_RESULT([yes])
-               ], [AC_MSG_RESULT([no])
-       ])
+                       AC_DEFINE(HAVE_U_INTXX_T)
+                       AC_DEFINE(HAVE_INTXX_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [AC_MSG_RESULT(no)]
+       )
 fi
 
 
 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ u_char foo; foo = 125; ]])],
-       [ ac_cv_have_u_char="yes" ], [ ac_cv_have_u_char="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <sys/types.h>
+               ],
+               [ u_char foo; foo = 125; ],
+               [ ac_cv_have_u_char="yes" ],
+               [ ac_cv_have_u_char="no" ]
+       )
 ])
 if test "x$ac_cv_have_u_char" = "xyes" ; then
-       AC_DEFINE([HAVE_U_CHAR], [1], [define if you have u_char data type])
+       AC_DEFINE(HAVE_U_CHAR, 1, [define if you have u_char data type])
 fi
 
 TYPE_SOCKLEN_T
 
-AC_CHECK_TYPES([sig_atomic_t], , , [#include <signal.h>])
-AC_CHECK_TYPES([fsblkcnt_t, fsfilcnt_t], , , [
+AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
+AC_CHECK_TYPES([fsblkcnt_t, fsfilcnt_t],,,[
 #include <sys/types.h>
 #ifdef HAVE_SYS_BITYPES_H
 #include <sys/bitypes.h>
@@ -2850,125 +2887,156 @@ AC_CHECK_TYPES([fsblkcnt_t, fsfilcnt_t], , , [
 #endif
 ])
 
-AC_CHECK_TYPES([in_addr_t, in_port_t], , ,
+AC_CHECK_TYPES([in_addr_t, in_port_t],,,
 [#include <sys/types.h>
 #include <netinet/in.h>])
 
 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ size_t foo; foo = 1235; ]])],
-       [ ac_cv_have_size_t="yes" ], [ ac_cv_have_size_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <sys/types.h>
+               ],
+               [ size_t foo; foo = 1235; ],
+               [ ac_cv_have_size_t="yes" ],
+               [ ac_cv_have_size_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_size_t" = "xyes" ; then
-       AC_DEFINE([HAVE_SIZE_T], [1], [define if you have size_t data type])
+       AC_DEFINE(HAVE_SIZE_T, 1, [define if you have size_t data type])
 fi
 
 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ ssize_t foo; foo = 1235; ]])],
-       [ ac_cv_have_ssize_t="yes" ], [ ac_cv_have_ssize_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <sys/types.h>
+               ],
+               [ ssize_t foo; foo = 1235; ],
+               [ ac_cv_have_ssize_t="yes" ],
+               [ ac_cv_have_ssize_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
-       AC_DEFINE([HAVE_SSIZE_T], [1], [define if you have ssize_t data type])
+       AC_DEFINE(HAVE_SSIZE_T, 1, [define if you have ssize_t data type])
 fi
 
 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <time.h> ]],
-       [[ clock_t foo; foo = 1235; ]])],
-       [ ac_cv_have_clock_t="yes" ], [ ac_cv_have_clock_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <time.h>
+               ],
+               [ clock_t foo; foo = 1235; ],
+               [ ac_cv_have_clock_t="yes" ],
+               [ ac_cv_have_clock_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_clock_t" = "xyes" ; then
-       AC_DEFINE([HAVE_CLOCK_T], [1], [define if you have clock_t data type])
+       AC_DEFINE(HAVE_CLOCK_T, 1, [define if you have clock_t data type])
 fi
 
 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
-               ]], [[ sa_family_t foo; foo = 1235; ]])],
-       [ ac_cv_have_sa_family_t="yes" ],
-       [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+               ],
+               [ sa_family_t foo; foo = 1235; ],
+               [ ac_cv_have_sa_family_t="yes" ],
+               [ AC_TRY_COMPILE(
+                 [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
-               ]], [[ sa_family_t foo; foo = 1235; ]])],
+               ],
+               [ sa_family_t foo; foo = 1235; ],
                [ ac_cv_have_sa_family_t="yes" ],
+
                [ ac_cv_have_sa_family_t="no" ]
+       )]
        )
-       ])
 ])
 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
-       AC_DEFINE([HAVE_SA_FAMILY_T], [1],
+       AC_DEFINE(HAVE_SA_FAMILY_T, 1,
                [define if you have sa_family_t data type])
 fi
 
 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ pid_t foo; foo = 1235; ]])],
-       [ ac_cv_have_pid_t="yes" ], [ ac_cv_have_pid_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <sys/types.h>
+               ],
+               [ pid_t foo; foo = 1235; ],
+               [ ac_cv_have_pid_t="yes" ],
+               [ ac_cv_have_pid_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_pid_t" = "xyes" ; then
-       AC_DEFINE([HAVE_PID_T], [1], [define if you have pid_t data type])
+       AC_DEFINE(HAVE_PID_T, 1, [define if you have pid_t data type])
 fi
 
 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> ]],
-       [[ mode_t foo; foo = 1235; ]])],
-       [ ac_cv_have_mode_t="yes" ], [ ac_cv_have_mode_t="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <sys/types.h>
+               ],
+               [ mode_t foo; foo = 1235; ],
+               [ ac_cv_have_mode_t="yes" ],
+               [ ac_cv_have_mode_t="no" ]
+       )
 ])
 if test "x$ac_cv_have_mode_t" = "xyes" ; then
-       AC_DEFINE([HAVE_MODE_T], [1], [define if you have mode_t data type])
+       AC_DEFINE(HAVE_MODE_T, 1, [define if you have mode_t data type])
 fi
 
 
 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
-               ]], [[ struct sockaddr_storage s; ]])],
-       [ ac_cv_have_struct_sockaddr_storage="yes" ],
-       [ ac_cv_have_struct_sockaddr_storage="no" 
-       ])
+               ],
+               [ struct sockaddr_storage s; ],
+               [ ac_cv_have_struct_sockaddr_storage="yes" ],
+               [ ac_cv_have_struct_sockaddr_storage="no" ]
+       )
 ])
 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
-       AC_DEFINE([HAVE_STRUCT_SOCKADDR_STORAGE], [1],
+       AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE, 1,
                [define if you have struct sockaddr_storage data type])
 fi
 
 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <netinet/in.h>
-               ]], [[ struct sockaddr_in6 s; s.sin6_family = 0; ]])],
-       [ ac_cv_have_struct_sockaddr_in6="yes" ],
-       [ ac_cv_have_struct_sockaddr_in6="no" 
-       ])
+               ],
+               [ struct sockaddr_in6 s; s.sin6_family = 0; ],
+               [ ac_cv_have_struct_sockaddr_in6="yes" ],
+               [ ac_cv_have_struct_sockaddr_in6="no" ]
+       )
 ])
 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
-       AC_DEFINE([HAVE_STRUCT_SOCKADDR_IN6], [1],
+       AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6, 1,
                [define if you have struct sockaddr_in6 data type])
 fi
 
 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <netinet/in.h>
-               ]], [[ struct in6_addr s; s.s6_addr[0] = 0; ]])],
-       [ ac_cv_have_struct_in6_addr="yes" ],
-       [ ac_cv_have_struct_in6_addr="no" 
-       ])
+               ],
+               [ struct in6_addr s; s.s6_addr[0] = 0; ],
+               [ ac_cv_have_struct_in6_addr="yes" ],
+               [ ac_cv_have_struct_in6_addr="no" ]
+       )
 ])
 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
-       AC_DEFINE([HAVE_STRUCT_IN6_ADDR], [1],
+       AC_DEFINE(HAVE_STRUCT_IN6_ADDR, 1,
                [define if you have struct in6_addr data type])
 
 dnl Now check for sin6_scope_id
-       AC_CHECK_MEMBERS([struct sockaddr_in6.sin6_scope_id], , ,
+       AC_CHECK_MEMBERS([struct sockaddr_in6.sin6_scope_id],,,
                [
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2978,33 +3046,36 @@ dnl Now check for sin6_scope_id
 fi
 
 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>
-               ]], [[ struct addrinfo s; s.ai_flags = AI_PASSIVE; ]])],
-       [ ac_cv_have_struct_addrinfo="yes" ],
-       [ ac_cv_have_struct_addrinfo="no" 
-       ])
+               ],
+               [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
+               [ ac_cv_have_struct_addrinfo="yes" ],
+               [ ac_cv_have_struct_addrinfo="no" ]
+       )
 ])
 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
-       AC_DEFINE([HAVE_STRUCT_ADDRINFO], [1],
+       AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1,
                [define if you have struct addrinfo data type])
 fi
 
 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/time.h> ]],
-       [[ struct timeval tv; tv.tv_sec = 1;]])],
-       [ ac_cv_have_struct_timeval="yes" ],
-       [ ac_cv_have_struct_timeval="no" 
-       ])
+       AC_TRY_COMPILE(
+               [ #include <sys/time.h> ],
+               [ struct timeval tv; tv.tv_sec = 1;],
+               [ ac_cv_have_struct_timeval="yes" ],
+               [ ac_cv_have_struct_timeval="no" ]
+       )
 ])
 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
-       AC_DEFINE([HAVE_STRUCT_TIMEVAL], [1], [define if you have struct timeval])
+       AC_DEFINE(HAVE_STRUCT_TIMEVAL, 1, [define if you have struct timeval])
        have_struct_timeval=1
 fi
 
-AC_CHECK_TYPES([struct timespec])
+AC_CHECK_TYPES(struct timespec)
 
 # We need int64_t or else certian parts of the compile will fail.
 if test "x$ac_cv_have_int64_t" = "xno" && \
@@ -3040,32 +3111,32 @@ main()
 #else
 main() { exit(0); }
 #endif
-               ]])], [ true ], [ AC_DEFINE([BROKEN_SNPRINTF]) ],
+               ]])], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ],
                AC_MSG_WARN([cross compiling: Assuming working snprintf()])
        )
 fi
 
 dnl Checks for structure members
-OSSH_CHECK_HEADER_FOR_FIELD([ut_host], [utmp.h], [HAVE_HOST_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_host], [utmpx.h], [HAVE_HOST_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([syslen], [utmpx.h], [HAVE_SYSLEN_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_pid], [utmp.h], [HAVE_PID_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_type], [utmp.h], [HAVE_TYPE_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_type], [utmpx.h], [HAVE_TYPE_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_tv], [utmp.h], [HAVE_TV_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_id], [utmp.h], [HAVE_ID_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_id], [utmpx.h], [HAVE_ID_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_addr], [utmp.h], [HAVE_ADDR_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_addr], [utmpx.h], [HAVE_ADDR_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_addr_v6], [utmp.h], [HAVE_ADDR_V6_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_addr_v6], [utmpx.h], [HAVE_ADDR_V6_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_exit], [utmp.h], [HAVE_EXIT_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_time], [utmp.h], [HAVE_TIME_IN_UTMP])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_time], [utmpx.h], [HAVE_TIME_IN_UTMPX])
-OSSH_CHECK_HEADER_FOR_FIELD([ut_tv], [utmpx.h], [HAVE_TV_IN_UTMPX])
+OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
 
 AC_CHECK_MEMBERS([struct stat.st_blksize])
-AC_CHECK_MEMBER([struct __res_state.retrans], [], [AC_DEFINE([__res_state], [state],
+AC_CHECK_MEMBER([struct __res_state.retrans], [], [AC_DEFINE(__res_state, state,
        [Define if we don't have struct __res_state in resolv.h])],
 [
 #include <stdio.h>
@@ -3079,79 +3150,94 @@ AC_CHECK_MEMBER([struct __res_state.retrans], [], [AC_DEFINE([__res_state], [sta
 
 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
                ac_cv_have_ss_family_in_struct_ss, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
-               ]], [[ struct sockaddr_storage s; s.ss_family = 1; ]])],
-       [ ac_cv_have_ss_family_in_struct_ss="yes" ],
-       [ ac_cv_have_ss_family_in_struct_ss="no" ])
+               ],
+               [ struct sockaddr_storage s; s.ss_family = 1; ],
+               [ ac_cv_have_ss_family_in_struct_ss="yes" ],
+               [ ac_cv_have_ss_family_in_struct_ss="no" ],
+       )
 ])
 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
-       AC_DEFINE([HAVE_SS_FAMILY_IN_SS], [1], [Fields in struct sockaddr_storage])
+       AC_DEFINE(HAVE_SS_FAMILY_IN_SS, 1, [Fields in struct sockaddr_storage])
 fi
 
 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
                ac_cv_have___ss_family_in_struct_ss, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
-               ]], [[ struct sockaddr_storage s; s.__ss_family = 1; ]])],
-       [ ac_cv_have___ss_family_in_struct_ss="yes" ],
-       [ ac_cv_have___ss_family_in_struct_ss="no" 
-       ])
+               ],
+               [ struct sockaddr_storage s; s.__ss_family = 1; ],
+               [ ac_cv_have___ss_family_in_struct_ss="yes" ],
+               [ ac_cv_have___ss_family_in_struct_ss="no" ]
+       )
 ])
 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
-       AC_DEFINE([HAVE___SS_FAMILY_IN_SS], [1],
+       AC_DEFINE(HAVE___SS_FAMILY_IN_SS, 1,
                [Fields in struct sockaddr_storage])
 fi
 
 AC_CACHE_CHECK([for pw_class field in struct passwd],
                ac_cv_have_pw_class_in_struct_passwd, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]],
-       [[ struct passwd p; p.pw_class = 0; ]])],
-       [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
-       [ ac_cv_have_pw_class_in_struct_passwd="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <pwd.h>
+               ],
+               [ struct passwd p; p.pw_class = 0; ],
+               [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
+               [ ac_cv_have_pw_class_in_struct_passwd="no" ]
+       )
 ])
 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
-       AC_DEFINE([HAVE_PW_CLASS_IN_PASSWD], [1],
+       AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD, 1,
                [Define if your password has a pw_class field])
 fi
 
 AC_CACHE_CHECK([for pw_expire field in struct passwd],
                ac_cv_have_pw_expire_in_struct_passwd, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]],
-       [[ struct passwd p; p.pw_expire = 0; ]])],
-       [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
-       [ ac_cv_have_pw_expire_in_struct_passwd="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <pwd.h>
+               ],
+               [ struct passwd p; p.pw_expire = 0; ],
+               [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
+               [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
+       )
 ])
 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
-       AC_DEFINE([HAVE_PW_EXPIRE_IN_PASSWD], [1],
+       AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD, 1,
                [Define if your password has a pw_expire field])
 fi
 
 AC_CACHE_CHECK([for pw_change field in struct passwd],
                ac_cv_have_pw_change_in_struct_passwd, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]],
-       [[ struct passwd p; p.pw_change = 0; ]])],
-       [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
-       [ ac_cv_have_pw_change_in_struct_passwd="no" 
-       ])
+       AC_TRY_COMPILE(
+               [
+#include <pwd.h>
+               ],
+               [ struct passwd p; p.pw_change = 0; ],
+               [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
+               [ ac_cv_have_pw_change_in_struct_passwd="no" ]
+       )
 ])
 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
-       AC_DEFINE([HAVE_PW_CHANGE_IN_PASSWD], [1],
+       AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD, 1,
                [Define if your password has a pw_change field])
 fi
 
 dnl make sure we're using the real structure members and not defines
 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
                ac_cv_have_accrights_in_msghdr, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_COMPILE_IFELSE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
-               ]], [[
+int main() {
 #ifdef msg_accrights
 #error "msg_accrights is a macro"
 exit(1);
@@ -3159,19 +3245,20 @@ exit(1);
 struct msghdr m;
 m.msg_accrights = 0;
 exit(0);
-               ]])],
+}
+               ],
                [ ac_cv_have_accrights_in_msghdr="yes" ],
                [ ac_cv_have_accrights_in_msghdr="no" ]
        )
 ])
 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
-       AC_DEFINE([HAVE_ACCRIGHTS_IN_MSGHDR], [1],
+       AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR, 1,
                [Define if your system uses access rights style
                file descriptor passing])
 fi
 
-AC_MSG_CHECKING([if struct statvfs.f_fsid is integral type])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_MSG_CHECKING(if struct statvfs.f_fsid is integral type)
+AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <sys/stat.h>
 #ifdef HAVE_SYS_TIME_H
@@ -3183,36 +3270,37 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #ifdef HAVE_SYS_STATVFS_H
 #include <sys/statvfs.h>
 #endif
-       ]], [[ struct statvfs s; s.f_fsid = 0; ]])],
-       [ AC_MSG_RESULT([yes]) ],
-       [ AC_MSG_RESULT([no])
+], [struct statvfs s; s.f_fsid = 0;],
+[ AC_MSG_RESULT(yes) ],
+[ AC_MSG_RESULT(no)
 
-       AC_MSG_CHECKING([if fsid_t has member val])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_MSG_CHECKING(if fsid_t has member val)
+       AC_TRY_COMPILE([
 #include <sys/types.h>
-#include <sys/statvfs.h>
-       ]], [[ fsid_t t; t.val[0] = 0; ]])],
-       [ AC_MSG_RESULT([yes])
-         AC_DEFINE([FSID_HAS_VAL], [1], [fsid_t has member val]) ],
-       [ AC_MSG_RESULT([no]) ])
-
-       AC_MSG_CHECKING([if f_fsid has member __val])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/statvfs.h>],
+       [fsid_t t; t.val[0] = 0;],
+       [ AC_MSG_RESULT(yes)
+         AC_DEFINE(FSID_HAS_VAL, 1, fsid_t has member val) ],
+       [ AC_MSG_RESULT(no) ])
+
+       AC_MSG_CHECKING(if f_fsid has member __val)
+       AC_TRY_COMPILE([
 #include <sys/types.h>
-#include <sys/statvfs.h>
-       ]], [[ fsid_t t; t.__val[0] = 0; ]])],
-       [ AC_MSG_RESULT([yes])
-         AC_DEFINE([FSID_HAS___VAL], [1], [fsid_t has member __val]) ],
-       [ AC_MSG_RESULT([no]) ])
+#include <sys/statvfs.h>],
+       [fsid_t t; t.__val[0] = 0;],
+       [ AC_MSG_RESULT(yes)
+         AC_DEFINE(FSID_HAS___VAL, 1, fsid_t has member __val) ],
+       [ AC_MSG_RESULT(no) ])
 ])
 
 AC_CACHE_CHECK([for msg_control field in struct msghdr],
                ac_cv_have_control_in_msghdr, [
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_COMPILE_IFELSE(
+               [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
-               ]], [[
+int main() {
 #ifdef msg_control
 #error "msg_control is a macro"
 exit(1);
@@ -3220,161 +3308,178 @@ exit(1);
 struct msghdr m;
 m.msg_control = 0;
 exit(0);
-               ]])],
+}
+               ],
                [ ac_cv_have_control_in_msghdr="yes" ],
                [ ac_cv_have_control_in_msghdr="no" ]
        )
 ])
 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
-       AC_DEFINE([HAVE_CONTROL_IN_MSGHDR], [1],
+       AC_DEFINE(HAVE_CONTROL_IN_MSGHDR, 1,
                [Define if your system uses ancillary data style
                file descriptor passing])
 fi
 
 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
-               [[ extern char *__progname; printf("%s", __progname); ]])],
-       [ ac_cv_libc_defines___progname="yes" ],
-       [ ac_cv_libc_defines___progname="no" 
-       ])
+       AC_TRY_LINK([],
+               [ extern char *__progname; printf("%s", __progname); ],
+               [ ac_cv_libc_defines___progname="yes" ],
+               [ ac_cv_libc_defines___progname="no" ]
+       )
 ])
 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
-       AC_DEFINE([HAVE___PROGNAME], [1], [Define if libc defines __progname])
+       AC_DEFINE(HAVE___PROGNAME, 1, [Define if libc defines __progname])
 fi
 
 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> ]],
-               [[ printf("%s", __FUNCTION__); ]])],
-       [ ac_cv_cc_implements___FUNCTION__="yes" ],
-       [ ac_cv_cc_implements___FUNCTION__="no" 
-       ])
+       AC_TRY_LINK([
+#include <stdio.h>
+],
+               [ printf("%s", __FUNCTION__); ],
+               [ ac_cv_cc_implements___FUNCTION__="yes" ],
+               [ ac_cv_cc_implements___FUNCTION__="no" ]
+       )
 ])
 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
-       AC_DEFINE([HAVE___FUNCTION__], [1],
+       AC_DEFINE(HAVE___FUNCTION__, 1,
                [Define if compiler implements __FUNCTION__])
 fi
 
 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> ]],
-               [[ printf("%s", __func__); ]])],
-       [ ac_cv_cc_implements___func__="yes" ],
-       [ ac_cv_cc_implements___func__="no" 
-       ])
+       AC_TRY_LINK([
+#include <stdio.h>
+],
+               [ printf("%s", __func__); ],
+               [ ac_cv_cc_implements___func__="yes" ],
+               [ ac_cv_cc_implements___func__="no" ]
+       )
 ])
 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
-       AC_DEFINE([HAVE___func__], [1], [Define if compiler implements __func__])
+       AC_DEFINE(HAVE___func__, 1, [Define if compiler implements __func__])
 fi
 
 AC_CACHE_CHECK([whether va_copy exists], ac_cv_have_va_copy, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-#include <stdarg.h>
-va_list x,y;
-               ]], [[ va_copy(x,y); ]])],
-       [ ac_cv_have_va_copy="yes" ],
-       [ ac_cv_have_va_copy="no" 
-       ])
+       AC_TRY_LINK(
+               [#include <stdarg.h>
+                va_list x,y;],
+               [va_copy(x,y);],
+               [ ac_cv_have_va_copy="yes" ],
+               [ ac_cv_have_va_copy="no" ]
+       )
 ])
 if test "x$ac_cv_have_va_copy" = "xyes" ; then
-       AC_DEFINE([HAVE_VA_COPY], [1], [Define if va_copy exists])
+       AC_DEFINE(HAVE_VA_COPY, 1, [Define if va_copy exists])
 fi
 
 AC_CACHE_CHECK([whether __va_copy exists], ac_cv_have___va_copy, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-#include <stdarg.h>
-va_list x,y;
-               ]], [[ __va_copy(x,y); ]])],
-       [ ac_cv_have___va_copy="yes" ], [ ac_cv_have___va_copy="no" 
-       ])
+       AC_TRY_LINK(
+               [#include <stdarg.h>
+                va_list x,y;],
+               [__va_copy(x,y);],
+               [ ac_cv_have___va_copy="yes" ],
+               [ ac_cv_have___va_copy="no" ]
+       )
 ])
 if test "x$ac_cv_have___va_copy" = "xyes" ; then
-       AC_DEFINE([HAVE___VA_COPY], [1], [Define if __va_copy exists])
+       AC_DEFINE(HAVE___VA_COPY, 1, [Define if __va_copy exists])
 fi
 
 AC_CACHE_CHECK([whether getopt has optreset support],
                ac_cv_have_getopt_optreset, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <getopt.h> ]],
-               [[ extern int optreset; optreset = 0; ]])],
-       [ ac_cv_have_getopt_optreset="yes" ],
-       [ ac_cv_have_getopt_optreset="no" 
-       ])
+       AC_TRY_LINK(
+               [
+#include <getopt.h>
+               ],
+               [ extern int optreset; optreset = 0; ],
+               [ ac_cv_have_getopt_optreset="yes" ],
+               [ ac_cv_have_getopt_optreset="no" ]
+       )
 ])
 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
-       AC_DEFINE([HAVE_GETOPT_OPTRESET], [1],
+       AC_DEFINE(HAVE_GETOPT_OPTRESET, 1,
                [Define if your getopt(3) defines and uses optreset])
 fi
 
 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
-[[ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);]])],
-       [ ac_cv_libc_defines_sys_errlist="yes" ],
-       [ ac_cv_libc_defines_sys_errlist="no" 
-       ])
+       AC_TRY_LINK([],
+               [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
+               [ ac_cv_libc_defines_sys_errlist="yes" ],
+               [ ac_cv_libc_defines_sys_errlist="no" ]
+       )
 ])
 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
-       AC_DEFINE([HAVE_SYS_ERRLIST], [1],
+       AC_DEFINE(HAVE_SYS_ERRLIST, 1,
                [Define if your system defines sys_errlist[]])
 fi
 
 
 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
-[[ extern int sys_nerr; printf("%i", sys_nerr);]])],
-       [ ac_cv_libc_defines_sys_nerr="yes" ],
-       [ ac_cv_libc_defines_sys_nerr="no" 
-       ])
+       AC_TRY_LINK([],
+               [ extern int sys_nerr; printf("%i", sys_nerr);],
+               [ ac_cv_libc_defines_sys_nerr="yes" ],
+               [ ac_cv_libc_defines_sys_nerr="no" ]
+       )
 ])
 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
-       AC_DEFINE([HAVE_SYS_NERR], [1], [Define if your system defines sys_nerr])
+       AC_DEFINE(HAVE_SYS_NERR, 1, [Define if your system defines sys_nerr])
 fi
 
 # Check libraries needed by DNS fingerprint support
-AC_SEARCH_LIBS([getrrsetbyname], [resolv],
-       [AC_DEFINE([HAVE_GETRRSETBYNAME], [1],
+AC_SEARCH_LIBS(getrrsetbyname, resolv,
+       [AC_DEFINE(HAVE_GETRRSETBYNAME, 1,
                [Define if getrrsetbyname() exists])],
        [
                # Needed by our getrrsetbyname()
-               AC_SEARCH_LIBS([res_query], [resolv])
-               AC_SEARCH_LIBS([dn_expand], [resolv])
-               AC_MSG_CHECKING([if res_query will link])
-               AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+               AC_SEARCH_LIBS(res_query, resolv)
+               AC_SEARCH_LIBS(dn_expand, resolv)
+               AC_MSG_CHECKING(if res_query will link)
+               AC_LINK_IFELSE([
+#include "confdefs.h"
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/nameser.h>
 #include <netdb.h>
 #include <resolv.h>
-                               ]], [[
+int main()
+{
        res_query (0, 0, 0, 0, 0);
-                               ]])],
-                   AC_MSG_RESULT([yes]),
-                  [AC_MSG_RESULT([no])
+       return 0;
+}
+                  ],
+                   AC_MSG_RESULT(yes),
+                  [AC_MSG_RESULT(no)
                    saved_LIBS="$LIBS"
                    LIBS="$LIBS -lresolv"
-                   AC_MSG_CHECKING([for res_query in -lresolv])
-                   AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                   AC_MSG_CHECKING(for res_query in -lresolv)
+                   AC_LINK_IFELSE([
+#include "confdefs.h"
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/nameser.h>
 #include <netdb.h>
 #include <resolv.h>
-                               ]], [[
+int main()
+{
        res_query (0, 0, 0, 0, 0);
-                               ]])],
-                       [AC_MSG_RESULT([yes])],
+       return 0;
+}
+                       ],
+                       [AC_MSG_RESULT(yes)],
                        [LIBS="$saved_LIBS"
-                        AC_MSG_RESULT([no])])
+                        AC_MSG_RESULT(no)])
                    ])
-               AC_CHECK_FUNCS([_getshort _getlong])
+               AC_CHECK_FUNCS(_getshort _getlong)
                AC_CHECK_DECLS([_getshort, _getlong], , ,
                    [#include <sys/types.h>
                    #include <arpa/nameser.h>])
-               AC_CHECK_MEMBER([HEADER.ad],
-                       [AC_DEFINE([HAVE_HEADER_AD], [1],
-                           [Define if HEADER.ad exists in arpa/nameser.h])], ,
+               AC_CHECK_MEMBER(HEADER.ad,
+                       [AC_DEFINE(HAVE_HEADER_AD, 1,
+                           [Define if HEADER.ad exists in arpa/nameser.h])],,
                        [#include <arpa/nameser.h>])
        ])
 
-AC_MSG_CHECKING([if struct __res_state _res is an extern])
-AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+AC_MSG_CHECKING(if struct __res_state _res is an extern)
+AC_LINK_IFELSE([
 #include <stdio.h>
 #if HAVE_SYS_TYPES_H
 # include <sys/types.h>
@@ -3383,43 +3488,43 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <arpa/nameser.h>
 #include <resolv.h>
 extern struct __res_state _res;
-               ]], [[ ]])],
-               [AC_MSG_RESULT([yes])
-                AC_DEFINE([HAVE__RES_EXTERN], [1],
+int main() { return 0; }
+               ],
+               [AC_MSG_RESULT(yes)
+                AC_DEFINE(HAVE__RES_EXTERN, 1,
                    [Define if you have struct __res_state _res as an extern])
                ],
-               [ AC_MSG_RESULT([no]) ]
+               [ AC_MSG_RESULT(no) ]
 )
 
 # Check whether user wants SELinux support
 SELINUX_MSG="no"
 LIBSELINUX=""
-AC_ARG_WITH([selinux],
+AC_ARG_WITH(selinux,
        [  --with-selinux          Enable SELinux support],
        [ if test "x$withval" != "xno" ; then
                save_LIBS="$LIBS"
-               AC_DEFINE([WITH_SELINUX], [1],
-                       [Define if you want SELinux support.])
+               AC_DEFINE(WITH_SELINUX,1,[Define if you want SELinux support.])
                SELINUX_MSG="yes"
                AC_CHECK_HEADER([selinux/selinux.h], ,
-                       AC_MSG_ERROR([SELinux support requires selinux.h header]))
-               AC_CHECK_LIB([selinux], [setexeccon],
+                       AC_MSG_ERROR(SELinux support requires selinux.h header))
+               AC_CHECK_LIB(selinux, setexeccon,
                        [ LIBSELINUX="-lselinux"
                          LIBS="$LIBS -lselinux"
                        ],
-                       AC_MSG_ERROR([SELinux support requires libselinux library]))
+                       AC_MSG_ERROR(SELinux support requires libselinux library))
                SSHLIBS="$SSHLIBS $LIBSELINUX"
                SSHDLIBS="$SSHDLIBS $LIBSELINUX"
-               AC_CHECK_FUNCS([getseuserbyname get_default_context_with_level])
+               AC_CHECK_FUNCS(getseuserbyname get_default_context_with_level)
                LIBS="$save_LIBS"
        fi ]
 )
-AC_SUBST([SSHLIBS])
-AC_SUBST([SSHDLIBS])
+AC_SUBST(SSHLIBS)
+AC_SUBST(SSHDLIBS)
 
 # Check whether user wants Kerberos 5 support
 KRB5_MSG="no"
-AC_ARG_WITH([kerberos5],
+AC_ARG_WITH(kerberos5,
        [  --with-kerberos5=PATH   Enable Kerberos 5 support],
        [ if test "x$withval" != "xno" ; then
                if test "x$withval" = "xyes" ; then
@@ -3428,72 +3533,73 @@ AC_ARG_WITH([kerberos5],
                        KRB5ROOT=${withval}
                fi
 
-               AC_DEFINE([KRB5], [1], [Define if you want Kerberos 5 support])
+               AC_DEFINE(KRB5, 1, [Define if you want Kerberos 5 support])
                KRB5_MSG="yes"
 
-               AC_PATH_PROG([KRB5CONF], [krb5-config],
+               AC_PATH_PROG([KRB5CONF],[krb5-config],
                             [$KRB5ROOT/bin/krb5-config],
                             [$KRB5ROOT/bin:$PATH])
                if test -x $KRB5CONF ; then
 
-                       AC_MSG_CHECKING([for gssapi support])
+                       AC_MSG_CHECKING(for gssapi support)
                        if $KRB5CONF | grep gssapi >/dev/null ; then
-                               AC_MSG_RESULT([yes])
-                               AC_DEFINE([GSSAPI], [1],
+                               AC_MSG_RESULT(yes)
+                               AC_DEFINE(GSSAPI, 1,
                                        [Define this if you want GSSAPI
                                        support in the version 2 protocol])
                                k5confopts=gssapi
                        else
-                               AC_MSG_RESULT([no])
+                               AC_MSG_RESULT(no)
                                k5confopts=""
                        fi
                        K5CFLAGS="`$KRB5CONF --cflags $k5confopts`"
                        K5LIBS="`$KRB5CONF --libs $k5confopts`"
                        CPPFLAGS="$CPPFLAGS $K5CFLAGS"
-                       AC_MSG_CHECKING([whether we are using Heimdal])
-                       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <krb5.h>
-                               ]], [[ char *tmp = heimdal_version; ]])],
-                               [ AC_MSG_RESULT([yes])
-                               AC_DEFINE([HEIMDAL], [1],
-                               [Define this if you are using the Heimdal
-                               version of Kerberos V5]) ],
-                               [AC_MSG_RESULT([no])
-                       ])
+                       AC_MSG_CHECKING(whether we are using Heimdal)
+                       AC_TRY_COMPILE([ #include <krb5.h> ],
+                                      [ char *tmp = heimdal_version; ],
+                                      [ AC_MSG_RESULT(yes)
+                                        AC_DEFINE(HEIMDAL, 1,
+                                       [Define this if you are using the
+                                       Heimdal version of Kerberos V5]) ],
+                                        AC_MSG_RESULT(no)
+                       )
                else
                        CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
                        LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
-                       AC_MSG_CHECKING([whether we are using Heimdal])
-                       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <krb5.h>
-                               ]], [[ char *tmp = heimdal_version; ]])],
-                                       [ AC_MSG_RESULT([yes])
-                                        AC_DEFINE([HEIMDAL])
+                       AC_MSG_CHECKING(whether we are using Heimdal)
+                       AC_TRY_COMPILE([ #include <krb5.h> ],
+                                      [ char *tmp = heimdal_version; ],
+                                      [ AC_MSG_RESULT(yes)
+                                        AC_DEFINE(HEIMDAL)
                                         K5LIBS="-lkrb5"
                                         K5LIBS="$K5LIBS -lcom_err -lasn1"
-                                        AC_CHECK_LIB([roken], [net_write],
+                                        AC_CHECK_LIB(roken, net_write,
                                           [K5LIBS="$K5LIBS -lroken"])
-                                        AC_CHECK_LIB([des], [des_cbc_encrypt],
+                                        AC_CHECK_LIB(des, des_cbc_encrypt,
                                           [K5LIBS="$K5LIBS -ldes"])
-                                      ], [ AC_MSG_RESULT([no])
+                                      ],
+                                      [ AC_MSG_RESULT(no)
                                         K5LIBS="-lkrb5 -lk5crypto -lcom_err"
-                                      
-                       ])
-                       AC_SEARCH_LIBS([dn_expand], [resolv])
+                                      ]
+                       )
+                       AC_SEARCH_LIBS(dn_expand, resolv)
 
-                       AC_CHECK_LIB([gssapi_krb5], [gss_init_sec_context],
-                               [ AC_DEFINE([GSSAPI])
+                       AC_CHECK_LIB(gssapi_krb5, gss_init_sec_context,
+                               [ AC_DEFINE(GSSAPI)
                                  K5LIBS="-lgssapi_krb5 $K5LIBS" ],
-                               [ AC_CHECK_LIB([gssapi], [gss_init_sec_context],
-                                       [ AC_DEFINE([GSSAPI])
+                               [ AC_CHECK_LIB(gssapi, gss_init_sec_context,
+                                       [ AC_DEFINE(GSSAPI)
                                          K5LIBS="-lgssapi $K5LIBS" ],
                                        AC_MSG_WARN([Cannot find any suitable gss-api library - build may fail]),
                                        $K5LIBS)
                                ],
                                $K5LIBS)
 
-                       AC_CHECK_HEADER([gssapi.h], ,
+                       AC_CHECK_HEADER(gssapi.h, ,
                                [ unset ac_cv_header_gssapi_h
                                  CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
-                                 AC_CHECK_HEADERS([gssapi.h], ,
+                                 AC_CHECK_HEADERS(gssapi.h, ,
                                        AC_MSG_WARN([Cannot find any suitable gss-api header - build may fail])
                                  )
                                ]
@@ -3501,7 +3607,7 @@ AC_ARG_WITH([kerberos5],
 
                        oldCPP="$CPPFLAGS"
                        CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
-                       AC_CHECK_HEADER([gssapi_krb5.h], ,
+                       AC_CHECK_HEADER(gssapi_krb5.h, ,
                                        [ CPPFLAGS="$oldCPP" ])
 
                fi
@@ -3512,13 +3618,13 @@ AC_ARG_WITH([kerberos5],
                        blibpath="$blibpath:${KRB5ROOT}/lib"
                fi
 
-               AC_CHECK_HEADERS([gssapi.h gssapi/gssapi.h])
-               AC_CHECK_HEADERS([gssapi_krb5.h gssapi/gssapi_krb5.h])
-               AC_CHECK_HEADERS([gssapi_generic.h gssapi/gssapi_generic.h])
+               AC_CHECK_HEADERS(gssapi.h gssapi/gssapi.h)
+               AC_CHECK_HEADERS(gssapi_krb5.h gssapi/gssapi_krb5.h)
+               AC_CHECK_HEADERS(gssapi_generic.h gssapi/gssapi_generic.h)
 
                LIBS="$LIBS $K5LIBS"
-               AC_SEARCH_LIBS([k_hasafs], [kafs], [AC_DEFINE([USE_AFS], [1],
-                       [Define this if you want to use libkafs' AFS support])])
+               AC_SEARCH_LIBS(k_hasafs, kafs, AC_DEFINE(USE_AFS, 1,
+                       [Define this if you want to use libkafs' AFS support]))
        fi
        ]
 )
@@ -3526,7 +3632,7 @@ AC_ARG_WITH([kerberos5],
 # Looking for programs, paths and files
 
 PRIVSEP_PATH=/var/empty
-AC_ARG_WITH([privsep-path],
+AC_ARG_WITH(privsep-path,
        [  --with-privsep-path=xxx Path for privilege separation chroot (default=/var/empty)],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -3535,9 +3641,9 @@ AC_ARG_WITH([privsep-path],
                fi
        ]
 )
-AC_SUBST([PRIVSEP_PATH])
+AC_SUBST(PRIVSEP_PATH)
 
-AC_ARG_WITH([xauth],
+AC_ARG_WITH(xauth,
        [  --with-xauth=PATH       Specify path to xauth program ],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -3551,7 +3657,7 @@ AC_ARG_WITH([xauth],
                TestPath="${TestPath}${PATH_SEPARATOR}/usr/bin/X11"
                TestPath="${TestPath}${PATH_SEPARATOR}/usr/X11R6/bin"
                TestPath="${TestPath}${PATH_SEPARATOR}/usr/openwin/bin"
-               AC_PATH_PROG([xauth_path], [xauth], , [$TestPath])
+               AC_PATH_PROG(xauth_path, xauth, , $TestPath)
                if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
                        xauth_path="/usr/openwin/bin/xauth"
                fi
@@ -3559,7 +3665,7 @@ AC_ARG_WITH([xauth],
 )
 
 STRIP_OPT=-s
-AC_ARG_ENABLE([strip],
+AC_ARG_ENABLE(strip,
        [  --disable-strip         Disable calling strip(1) on install],
        [
                if test "x$enableval" = "xno" ; then
@@ -3567,22 +3673,22 @@ AC_ARG_ENABLE([strip],
                fi
        ]
 )
-AC_SUBST([STRIP_OPT])
+AC_SUBST(STRIP_OPT)
 
 if test -z "$xauth_path" ; then
        XAUTH_PATH="undefined"
-       AC_SUBST([XAUTH_PATH])
+       AC_SUBST(XAUTH_PATH)
 else
-       AC_DEFINE_UNQUOTED([XAUTH_PATH], ["$xauth_path"],
+       AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path",
                [Define if xauth is found in your path])
        XAUTH_PATH=$xauth_path
-       AC_SUBST([XAUTH_PATH])
+       AC_SUBST(XAUTH_PATH)
 fi
 
 # Check for mail directory (last resort if we cannot get it from headers)
 if test ! -z "$MAIL" ; then
        maildir=`dirname $MAIL`
-       AC_DEFINE_UNQUOTED([MAIL_DIRECTORY], ["$maildir"],
+       AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir",
                [Set this to your mail directory if you don't have maillock.h])
 fi
 
@@ -3592,9 +3698,9 @@ if test ! -z "$cross_compiling" && test "x$cross_compiling" = "xyes"; then
 fi
 if test -z "$no_dev_ptmx" ; then
        if test "x$disable_ptmx_check" != "xyes" ; then
-               AC_CHECK_FILE(["/dev/ptmx"],
+               AC_CHECK_FILE("/dev/ptmx",
                        [
-                               AC_DEFINE_UNQUOTED([HAVE_DEV_PTMX], [1],
+                               AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1,
                                        [Define if you have /dev/ptmx])
                                have_dev_ptmx=1
                        ]
@@ -3603,9 +3709,9 @@ if test -z "$no_dev_ptmx" ; then
 fi
 
 if test ! -z "$cross_compiling" && test "x$cross_compiling" != "xyes"; then
-       AC_CHECK_FILE(["/dev/ptc"],
+       AC_CHECK_FILE("/dev/ptc",
                [
-                       AC_DEFINE_UNQUOTED([HAVE_DEV_PTS_AND_PTC], [1],
+                       AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1,
                                [Define if you have /dev/ptc])
                        have_dev_ptc=1
                ]
@@ -3615,7 +3721,7 @@ else
 fi
 
 # Options from here on. Some of these are preset by platform above
-AC_ARG_WITH([mantype],
+AC_ARG_WITH(mantype,
        [  --with-mantype=man|cat|doc  Set man page type],
        [
                case "$withval" in
@@ -3623,14 +3729,14 @@ AC_ARG_WITH([mantype],
                        MANTYPE=$withval
                        ;;
                *)
-                       AC_MSG_ERROR([invalid man type: $withval])
+                       AC_MSG_ERROR(invalid man type: $withval)
                        ;;
                esac
        ]
 )
 if test -z "$MANTYPE"; then
        TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
-       AC_PATH_PROGS([NROFF], [nroff awf], [/bin/false], [$TestPath])
+       AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
        if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
                MANTYPE=doc
        elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
@@ -3639,21 +3745,21 @@ if test -z "$MANTYPE"; then
                MANTYPE=cat
        fi
 fi
-AC_SUBST([MANTYPE])
+AC_SUBST(MANTYPE)
 if test "$MANTYPE" = "doc"; then
        mansubdir=man;
 else
        mansubdir=$MANTYPE;
 fi
-AC_SUBST([mansubdir])
+AC_SUBST(mansubdir)
 
 # Check whether to enable MD5 passwords
 MD5_MSG="no"
-AC_ARG_WITH([md5-passwords],
+AC_ARG_WITH(md5-passwords,
        [  --with-md5-passwords    Enable use of MD5 passwords],
        [
                if test "x$withval" != "xno" ; then
-                       AC_DEFINE([HAVE_MD5_PASSWORDS], [1],
+                       AC_DEFINE(HAVE_MD5_PASSWORDS, 1,
                                [Define if you want to allow MD5 passwords])
                        MD5_MSG="yes"
                fi
@@ -3661,11 +3767,11 @@ AC_ARG_WITH([md5-passwords],
 )
 
 # Whether to disable shadow password support
-AC_ARG_WITH([shadow],
+AC_ARG_WITH(shadow,
        [  --without-shadow        Disable shadow password support],
        [
                if test "x$withval" = "xno" ; then
-                       AC_DEFINE([DISABLE_SHADOW])
+                       AC_DEFINE(DISABLE_SHADOW)
                        disable_shadow=yes
                fi
        ]
@@ -3673,36 +3779,37 @@ AC_ARG_WITH([shadow],
 
 if test -z "$disable_shadow" ; then
        AC_MSG_CHECKING([if the systems has expire shadow information])
-       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+       AC_TRY_COMPILE(
+       [
 #include <sys/types.h>
 #include <shadow.h>
-struct spwd sp;
-               ]], [[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ]])],
-               [ sp_expire_available=yes ], [
-       ])
+       struct spwd sp;
+       ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
+       [ sp_expire_available=yes ], []
+       )
 
        if test "x$sp_expire_available" = "xyes" ; then
-               AC_MSG_RESULT([yes])
-               AC_DEFINE([HAS_SHADOW_EXPIRE], [1],
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAS_SHADOW_EXPIRE, 1,
                    [Define if you want to use shadow password expire field])
        else
-               AC_MSG_RESULT([no])
+               AC_MSG_RESULT(no)
        fi
 fi
 
 # Use ip address instead of hostname in $DISPLAY
 if test ! -z "$IPADDR_IN_DISPLAY" ; then
        DISPLAY_HACK_MSG="yes"
-       AC_DEFINE([IPADDR_IN_DISPLAY], [1],
+       AC_DEFINE(IPADDR_IN_DISPLAY, 1,
                [Define if you need to use IP address
                instead of hostname in $DISPLAY])
 else
        DISPLAY_HACK_MSG="no"
-       AC_ARG_WITH([ipaddr-display],
+       AC_ARG_WITH(ipaddr-display,
                [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
                [
                        if test "x$withval" != "xno" ; then
-                               AC_DEFINE([IPADDR_IN_DISPLAY])
+                               AC_DEFINE(IPADDR_IN_DISPLAY)
                                DISPLAY_HACK_MSG="yes"
                        fi
                ]
@@ -3710,7 +3817,7 @@ else
 fi
 
 # check for /etc/default/login and use it if present.
-AC_ARG_ENABLE([etc-default-login],
+AC_ARG_ENABLE(etc-default-login,
        [  --disable-etc-default-login Disable using PATH from /etc/default/login [no]],
        [ if test "x$enableval" = "xno"; then
                AC_MSG_NOTICE([/etc/default/login handling disabled])
@@ -3728,10 +3835,10 @@ AC_ARG_ENABLE([etc-default-login],
 )
 
 if test "x$etc_default_login" != "xno"; then
-       AC_CHECK_FILE(["/etc/default/login"],
+       AC_CHECK_FILE("/etc/default/login",
            [ external_path_file=/etc/default/login ])
        if test "x$external_path_file" = "x/etc/default/login"; then
-               AC_DEFINE([HAVE_ETC_DEFAULT_LOGIN], [1],
+               AC_DEFINE(HAVE_ETC_DEFAULT_LOGIN, 1,
                        [Define if your system has /etc/default/login])
        fi
 fi
@@ -3744,7 +3851,7 @@ fi
 
 # Whether to mess with the default path
 SERVER_PATH_MSG="(default)"
-AC_ARG_WITH([default-path],
+AC_ARG_WITH(default-path,
        [  --with-default-path=    Specify default \$PATH environment for server],
        [
                if test "x$external_path_file" = "x/etc/login.conf" ; then
@@ -3770,7 +3877,7 @@ If PATH is defined in $external_path_file, ensure the path to scp is included,
 otherwise scp will not work.])
                fi
                AC_RUN_IFELSE(
-                       [AC_LANG_PROGRAM([[
+                       [AC_LANG_SOURCE([[
 /* find out what STDPATH is */
 #include <stdio.h>
 #ifdef HAVE_PATHS_H
@@ -3787,7 +3894,9 @@ otherwise scp will not work.])
 #include <sys/stat.h>
 #include <fcntl.h>
 #define DATA "conftest.stdpath"
-                       ]], [[
+
+main()
+{
        FILE *fd;
        int rc;
 
@@ -3799,6 +3908,7 @@ otherwise scp will not work.])
                exit(1);
 
        exit(0);
+}
                ]])],
                [ user_path=`cat conftest.stdpath` ],
                [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
@@ -3817,23 +3927,23 @@ otherwise scp will not work.])
                        echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
                        if test $? -ne 0  ; then
                                user_path=$user_path:$t_bindir
-                               AC_MSG_RESULT([Adding $t_bindir to USER_PATH so scp will work])
+                               AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
                        fi
                fi
        fi ]
 )
 if test "x$external_path_file" != "x/etc/login.conf" ; then
-       AC_DEFINE_UNQUOTED([USER_PATH], ["$user_path"], [Specify default $PATH])
-       AC_SUBST([user_path])
+       AC_DEFINE_UNQUOTED(USER_PATH, "$user_path", [Specify default $PATH])
+       AC_SUBST(user_path)
 fi
 
 # Set superuser path separately to user path
-AC_ARG_WITH([superuser-path],
+AC_ARG_WITH(superuser-path,
        [  --with-superuser-path=  Specify different path for super-user],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
                    test "x${withval}" != "xyes"; then
-                       AC_DEFINE_UNQUOTED([SUPERUSER_PATH], ["$withval"],
+                       AC_DEFINE_UNQUOTED(SUPERUSER_PATH, "$withval",
                                [Define if you want a different $PATH
                                for the superuser])
                        superuser_path=$withval
@@ -3848,18 +3958,18 @@ AC_ARG_WITH(4in6,
        [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
        [
                if test "x$withval" != "xno" ; then
-                       AC_MSG_RESULT([yes])
-                       AC_DEFINE([IPV4_IN_IPV6], [1],
+                       AC_MSG_RESULT(yes)
+                       AC_DEFINE(IPV4_IN_IPV6, 1,
                                [Detect IPv4 in IPv6 mapped addresses
                                and treat as IPv4])
                        IPV4_IN6_HACK_MSG="yes"
                else
-                       AC_MSG_RESULT([no])
+                       AC_MSG_RESULT(no)
                fi
-       ], [
+       ],[
                if test "x$inet6_default_4in6" = "xyes"; then
                        AC_MSG_RESULT([yes (default)])
-                       AC_DEFINE([IPV4_IN_IPV6])
+                       AC_DEFINE(IPV4_IN_IPV6)
                        IPV4_IN6_HACK_MSG="yes"
                else
                        AC_MSG_RESULT([no (default)])
@@ -3869,11 +3979,11 @@ AC_ARG_WITH(4in6,
 
 # Whether to enable BSD auth support
 BSD_AUTH_MSG=no
-AC_ARG_WITH([bsd-auth],
+AC_ARG_WITH(bsd-auth,
        [  --with-bsd-auth         Enable BSD auth support],
        [
                if test "x$withval" != "xno" ; then
-                       AC_DEFINE([BSD_AUTH], [1],
+                       AC_DEFINE(BSD_AUTH, 1,
                                [Define if you have BSD auth support])
                        BSD_AUTH_MSG=yes
                fi
@@ -3890,7 +4000,7 @@ if test ! -d $piddir ; then
        esac
 fi
 
-AC_ARG_WITH([pid-dir],
+AC_ARG_WITH(pid-dir,
        [  --with-pid-dir=PATH     Specify location of ssh.pid file],
        [
                if test -n "$withval"  &&  test "x$withval" != "xno"  &&  \
@@ -3903,86 +4013,85 @@ AC_ARG_WITH([pid-dir],
        ]
 )
 
-AC_DEFINE_UNQUOTED([_PATH_SSH_PIDDIR], ["$piddir"], 
-       [Specify location of ssh.pid])
-AC_SUBST([piddir])
+AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir", [Specify location of ssh.pid])
+AC_SUBST(piddir)
 
 dnl allow user to disable some login recording features
-AC_ARG_ENABLE([lastlog],
+AC_ARG_ENABLE(lastlog,
        [  --disable-lastlog       disable use of lastlog even if detected [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_LASTLOG])
+                       AC_DEFINE(DISABLE_LASTLOG)
                fi
        ]
 )
-AC_ARG_ENABLE([utmp],
+AC_ARG_ENABLE(utmp,
        [  --disable-utmp          disable use of utmp even if detected [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_UTMP])
+                       AC_DEFINE(DISABLE_UTMP)
                fi
        ]
 )
-AC_ARG_ENABLE([utmpx],
+AC_ARG_ENABLE(utmpx,
        [  --disable-utmpx         disable use of utmpx even if detected [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_UTMPX], [1],
+                       AC_DEFINE(DISABLE_UTMPX, 1,
                                [Define if you don't want to use utmpx])
                fi
        ]
 )
-AC_ARG_ENABLE([wtmp],
+AC_ARG_ENABLE(wtmp,
        [  --disable-wtmp          disable use of wtmp even if detected [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_WTMP])
+                       AC_DEFINE(DISABLE_WTMP)
                fi
        ]
 )
-AC_ARG_ENABLE([wtmpx],
+AC_ARG_ENABLE(wtmpx,
        [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_WTMPX], [1],
+                       AC_DEFINE(DISABLE_WTMPX, 1,
                                [Define if you don't want to use wtmpx])
                fi
        ]
 )
-AC_ARG_ENABLE([libutil],
+AC_ARG_ENABLE(libutil,
        [  --disable-libutil       disable use of libutil (login() etc.) [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_LOGIN])
+                       AC_DEFINE(DISABLE_LOGIN)
                fi
        ]
 )
-AC_ARG_ENABLE([pututline],
+AC_ARG_ENABLE(pututline,
        [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_PUTUTLINE], [1],
+                       AC_DEFINE(DISABLE_PUTUTLINE, 1,
                                [Define if you don't want to use pututline()
                                etc. to write [uw]tmp])
                fi
        ]
 )
-AC_ARG_ENABLE([pututxline],
+AC_ARG_ENABLE(pututxline,
        [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
        [
                if test "x$enableval" = "xno" ; then
-                       AC_DEFINE([DISABLE_PUTUTXLINE], [1],
+                       AC_DEFINE(DISABLE_PUTUTXLINE, 1,
                                [Define if you don't want to use pututxline()
                                etc. to write [uw]tmpx])
                fi
        ]
 )
-AC_ARG_WITH([lastlog],
+AC_ARG_WITH(lastlog,
   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
        [
                if test "x$withval" = "xno" ; then
-                       AC_DEFINE([DISABLE_LASTLOG])
+                       AC_DEFINE(DISABLE_LASTLOG)
                elif test -n "$withval"  &&  test "x${withval}" != "xyes"; then
                        conf_lastlog_location=$withval
                fi
@@ -3997,7 +4106,7 @@ dnl lastlog and [uw]tmp are subject to a file search if all else fails
 dnl lastlog detection
 dnl  NOTE: the code itself will detect if lastlog is a directory
 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <utmp.h>
 #ifdef HAVE_LASTLOG_H
@@ -4009,12 +4118,13 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #ifdef HAVE_LOGIN_H
 # include <login.h>
 #endif
-       ]], [[ char *lastlog = LASTLOG_FILE; ]])],
-               [ AC_MSG_RESULT([yes]) ],
-               [
-               AC_MSG_RESULT([no])
+       ],
+       [ char *lastlog = LASTLOG_FILE; ],
+       [ AC_MSG_RESULT(yes) ],
+       [
+               AC_MSG_RESULT(no)
                AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
-               AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+               AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <utmp.h>
 #ifdef HAVE_LASTLOG_H
@@ -4023,13 +4133,15 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #ifdef HAVE_PATHS_H
 #  include <paths.h>
 #endif
-               ]], [[ char *lastlog = _PATH_LASTLOG; ]])],
-               [ AC_MSG_RESULT([yes]) ],
+               ],
+               [ char *lastlog = _PATH_LASTLOG; ],
+               [ AC_MSG_RESULT(yes) ],
                [
-                       AC_MSG_RESULT([no])
+                       AC_MSG_RESULT(no)
                        system_lastlog_path=no
                ])
-])
+       ]
+)
 
 if test -z "$conf_lastlog_location"; then
        if test x"$system_lastlog_path" = x"no" ; then
@@ -4046,23 +4158,24 @@ if test -z "$conf_lastlog_location"; then
 fi
 
 if test -n "$conf_lastlog_location"; then
-       AC_DEFINE_UNQUOTED([CONF_LASTLOG_FILE], ["$conf_lastlog_location"],
+       AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location",
                [Define if you want to specify the path to your lastlog file])
 fi
 
 dnl utmp detection
 AC_MSG_CHECKING([if your system defines UTMP_FILE])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <utmp.h>
 #ifdef HAVE_PATHS_H
 #  include <paths.h>
 #endif
-       ]], [[ char *utmp = UTMP_FILE; ]])],
-       [ AC_MSG_RESULT([yes]) ],
-       [ AC_MSG_RESULT([no])
-         system_utmp_path=no 
-])
+       ],
+       [ char *utmp = UTMP_FILE; ],
+       [ AC_MSG_RESULT(yes) ],
+       [ AC_MSG_RESULT(no)
+         system_utmp_path=no ]
+)
 if test -z "$conf_utmp_location"; then
        if test x"$system_utmp_path" = x"no" ; then
                for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
@@ -4071,28 +4184,29 @@ if test -z "$conf_utmp_location"; then
                        fi
                done
                if test -z "$conf_utmp_location"; then
-                       AC_DEFINE([DISABLE_UTMP])
+                       AC_DEFINE(DISABLE_UTMP)
                fi
        fi
 fi
 if test -n "$conf_utmp_location"; then
-       AC_DEFINE_UNQUOTED([CONF_UTMP_FILE], ["$conf_utmp_location"],
+       AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location",
                [Define if you want to specify the path to your utmp file])
 fi
 
 dnl wtmp detection
 AC_MSG_CHECKING([if your system defines WTMP_FILE])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <utmp.h>
 #ifdef HAVE_PATHS_H
 #  include <paths.h>
 #endif
-       ]], [[ char *wtmp = WTMP_FILE; ]])],
-       [ AC_MSG_RESULT([yes]) ],
-       [ AC_MSG_RESULT([no])
-         system_wtmp_path=no 
-])
+       ],
+       [ char *wtmp = WTMP_FILE; ],
+       [ AC_MSG_RESULT(yes) ],
+       [ AC_MSG_RESULT(no)
+         system_wtmp_path=no ]
+)
 if test -z "$conf_wtmp_location"; then
        if test x"$system_wtmp_path" = x"no" ; then
                for f in /usr/adm/wtmp /var/log/wtmp; do
@@ -4101,19 +4215,19 @@ if test -z "$conf_wtmp_location"; then
                        fi
                done
                if test -z "$conf_wtmp_location"; then
-                       AC_DEFINE([DISABLE_WTMP])
+                       AC_DEFINE(DISABLE_WTMP)
                fi
        fi
 fi
 if test -n "$conf_wtmp_location"; then
-       AC_DEFINE_UNQUOTED([CONF_WTMP_FILE], ["$conf_wtmp_location"],
+       AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location",
                [Define if you want to specify the path to your wtmp file])
 fi
 
 
 dnl wtmpx detection
 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <utmp.h>
 #ifdef HAVE_UTMPX_H
@@ -4122,17 +4236,18 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #ifdef HAVE_PATHS_H
 #  include <paths.h>
 #endif
-       ]], [[ char *wtmpx = WTMPX_FILE; ]])],
-       [ AC_MSG_RESULT([yes]) ],
-       [ AC_MSG_RESULT([no])
-         system_wtmpx_path=no 
-])
+       ],
+       [ char *wtmpx = WTMPX_FILE; ],
+       [ AC_MSG_RESULT(yes) ],
+       [ AC_MSG_RESULT(no)
+         system_wtmpx_path=no ]
+)
 if test -z "$conf_wtmpx_location"; then
        if test x"$system_wtmpx_path" = x"no" ; then
-               AC_DEFINE([DISABLE_WTMPX])
+               AC_DEFINE(DISABLE_WTMPX)
        fi
 else
-       AC_DEFINE_UNQUOTED([CONF_WTMPX_FILE], ["$conf_wtmpx_location"],
+       AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location",
                [Define if you want to specify the path to your wtmpx file])
 fi
 
@@ -4151,8 +4266,8 @@ if test "x$ac_cv_func_getaddrinfo" != "xyes" ; then
 else
        TEST_SSH_IPV6=yes
 fi
-AC_CHECK_DECL([BROKEN_GETADDRINFO],  [TEST_SSH_IPV6=no])
-AC_SUBST([TEST_SSH_IPV6], [$TEST_SSH_IPV6])
+AC_CHECK_DECL(BROKEN_GETADDRINFO,  TEST_SSH_IPV6=no)
+AC_SUBST(TEST_SSH_IPV6, $TEST_SSH_IPV6)
 
 AC_EXEEXT
 AC_CONFIG_FILES([Makefile buildpkg.sh opensshd.init openssh.xml \
index eb280e616601767eb7d5f7e2375b2ef0c2868089..ee4290b981da7ab506e91d7385995c740849096f 100644 (file)
@@ -1,4 +1,4 @@
-/* $Id: port-linux.c,v 1.13 2011/01/27 23:30:20 djm Exp $ */
+/* $Id: port-linux.c,v 1.11.4.1 2011/02/04 00:42:21 djm Exp $ */
 
 /*
  * Copyright (c) 2005 Daniel Walsh <dwalsh@redhat.com>
@@ -209,15 +209,13 @@ ssh_selinux_change_context(const char *newname)
 void
 ssh_selinux_setfscreatecon(const char *path)
 {
-       security_context_t context;
+               security_context_t context;
 
-       if (!ssh_selinux_enabled())
-               return;
-       if (path == NULL)
-               setfscreatecon(NULL);
-               return;
-       }
-       if (matchpathcon(path, 0700, &context) == 0)
+               if (path == NULL) {
+                       setfscreatecon(NULL);
+                       return;
+               }
+               matchpathcon(path, 0700, &context);
                setfscreatecon(context);
 }
 
index e3d1004aadd9d8ca8a4199984c9f60bc4d0b14b4..c2f6184001c16c8be1040c64c3a6b2b2c6e802c0 100644 (file)
@@ -1,4 +1,4 @@
-/* $Id: port-linux.h,v 1.5 2011/01/25 01:16:18 djm Exp $ */
+/* $Id: port-linux.h,v 1.4.10.1 2011/02/04 00:42:21 djm Exp $ */
 
 /*
  * Copyright (c) 2006 Damien Miller <djm@openbsd.org>