blkid: minor changes to library build system

[thirdparty/util-linux.git] / configure.ac

AC_INIT(util-linux-ng, 2.14, kzak@redhat.com)

AC_PREREQ(2.60)

AC_CONFIG_AUX_DIR(config)

AM_INIT_AUTOMAKE([check-news -Wall foreign 1.9 dist-bzip2])

AC_CONFIG_SRCDIR(mount/mount.c)

AC_PREFIX_DEFAULT([/usr])

dnl libblkid version definition
dnl -----------------------------
BLKID_VERSION_MAJOR=1
BLKID_VERSION_MINOR=41
BLKID_VERSION_RELEASE=0
BLKID_DATE="10-Jul-2008"

BLKID_VERSION=$BLKID_VERSION_MAJOR.$BLKID_VERSION_MINOR.$BLKID_VERSION_RELEASE

AC_SUBST(BLKID_VERSION_MAJOR)
AC_SUBST(BLKID_VERSION_MINOR)
AC_SUBST(BLKID_VERSION_RELEASE)
AC_SUBST(BLKID_VERSION)

AC_DEFINE_UNQUOTED(BLKID_VERSION, "$BLKID_VERSION", [libblkid version string])
AC_DEFINE_UNQUOTED(BLKID_DATE, "$BLKID_DATE", [libblkid date string])

# Check whether exec_prefix=/usr:
case $exec_prefix:$prefix in
NONE:NONE | NONE:/usr | /usr:*)
  AC_MSG_NOTICE([Default --exec-prefix detected.])
  case $bindir in
  '${exec_prefix}/bin') bindir=/bin
    AC_MSG_NOTICE([  --bindir defaults to /bin]) ;;
  esac
  case $sbindir in
  '${exec_prefix}/sbin') sbindir=/sbin
    AC_MSG_NOTICE([  --sbindir defaults to /sbin]) ;;
  esac
  case $libdir in
  '${exec_prefix}/lib') libdir=/lib
    AC_MSG_NOTICE([  --libdir defaults to /lib]) ;;
  esac ;;
esac

AC_PROG_CC_STDC
AC_GNU_SOURCE
AC_CANONICAL_HOST
AC_C_BIGENDIAN
AC_PROG_RANLIB

linux_os=no
case ${host_os} in
  *linux*)
    linux_os=yes
    ;;
esac
AM_CONDITIONAL([LINUX], test "x$linux_os" = xyes)

AC_PATH_PROG(PERL, perl)
AC_PATH_PROG(BLKID, blkid, [], [$PATH:/sbin])
AC_PATH_PROG(VOLID, vol_id, [], [$PATH:/lib/udev])

AC_SYS_LARGEFILE

AC_CHECK_HEADERS([linux/compiler.h linux/blkpg.h linux/major.h], [], [], [
#ifdef HAVE_LINUX_COMPILER_H
#include <linux/compiler.h>
#endif
])
AC_CHECK_HEADERS(
	[err.h \
	errno.h \
	getopt.h \
	langinfo.h \
	linux/fd.h \
	linux/tiocl.h \
	linux/version.h \
	locale.h \
	pty.h \
	rpcsvc/nfs_prot.h \
	scsi/scsi.h \
	stdlib.h \
	sys/disk.h \
	sys/disklabel.h \
	sys/ioctl.h \
	sys/io.h \
	sys/mkdev.h \
	sys/prctl.h \
	sys/queue.h \
	sys/stat.h \
	sys/types.h \
	sys/user.h \
	unistd.h ])
AC_CHECK_HEADERS([linux/raw.h],
		 [AM_CONDITIONAL([HAVE_RAW], [true])],
		 [AM_CONDITIONAL([HAVE_RAW], [false])])

AC_CHECK_FUNCS(
	[inet_aton \
	fsync \
	getdomainname \
	get_current_dir_name \
	nanosleep \
	personality \
	updwtmp \
	lchown \
	llseek \
	lseek64 \
	strtoull \
	inotify_init \
	prctl \
	__secure_getenv \
	rpmatch])
AC_FUNC_FSEEKO

dnl Static compilation
m4_define([UTIL_STATIC_PROGRAMS], [losetup, mount, umount, fdisk, sfdisk])

AC_ARG_ENABLE([static-programs],
  [AS_HELP_STRING([--enable-static-programs=LIST],
      [link static the programs in LIST (comma-separated,
      supported for ]m4_defn([UTIL_STATIC_PROGRAMS])[)])])

case $enable_static_programs in
yes) enable_static_programs=m4_quote(UTIL_STATIC_PROGRAMS) ;;
no) enable_static_programs= ;;
esac

if test "$enable_static_programs" != ""; then
  AC_CACHE_CHECK([whether linker accepts -static],
  [static_cv_option],
  [SAVE_LDFLAGS="$LDFLAGS"
   LDFLAGS="$LDFLAGS -static"
   AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
]], [[
fflush(stdout);
]])], [static_cv_option=yes],[static_cv_option=no])
   LDFLAGS="$SAVE_LDFLAGS"
  ])
  if test "x$static_cv_option" = xno; then
     AC_MSG_ERROR([the linker does not accept option -static])
  fi
fi
AC_SUBST([LDFLAGS_STATIC], [-static])

dnl Set all the individual AM_CONDITIONALs
m4_foreach([UTIL_PRG], m4_defn([UTIL_STATIC_PROGRAMS]), [
  case ,$enable_static_programs, in
   *,UTIL_PRG,*) static_[]UTIL_PRG=yes ;;
  esac
  AM_CONDITIONAL([HAVE_STATIC_]m4_toupper(UTIL_PRG),
    [test "x$static_[]UTIL_PRG" = xyes])
])



dnl UTIL_CHECK_LIB(LIBRARY, FUNCTION, [VARSUFFIX = $1]))
dnl The VARSUFFIX is optional and overrides the default behaviour. For example:
dnl     UTIL_CHECK_LIB(yyy, func, xxx) generates have_xxx and HAVE_LIBXXX
dnl     UTIL_CHECK_LIB(yyy, func)      generates have_yyy and HAVE_LIBYYY
dnl ---------------------------------
AC_DEFUN([UTIL_CHECK_LIB], [
  m4_define([suffix], m4_default([$3],$1))
  [have_]suffix=yes
  m4_ifdef([$3],
    [AC_CHECK_LIB([$1], [$2], [AC_DEFINE(AS_TR_CPP([HAVE_LIB]suffix), 1)], [[have_]suffix=no])],
    [AC_CHECK_LIB([$1], [$2], [], [[have_]suffix=no])])
  AM_CONDITIONAL(AS_TR_CPP([HAVE_]suffix), [test [$have_]suffix = yes])
])

UTIL_CHECK_LIB(uuid, uuid_is_null)
if test "x$have_uuid" = xno; then
  AC_MSG_WARN([uuid library is not found; mkswap(8) will not generate UUIDs])
fi

UTIL_CHECK_LIB(util, openpty)
UTIL_CHECK_LIB(termcap, tgetnum)

AC_ARG_WITH([fsprobe],
  [AS_HELP_STRING([--with-fsprobe], [library to guess filesystems (blkid|volume_id), default is blkid])],
  [], [with_fsprobe=blkid]
)

AC_ARG_ENABLE([mount],
  AS_HELP_STRING([--disable-mount], [do not build mount utilities]),
  [], enable_mount=check
)

AM_CONDITIONAL(HAVE_BLKID, false)
AM_CONDITIONAL(HAVE_VOLUME_ID, false)
if test "${enable_mount}" = "no"; then
  build_mount=no
elif test "x$linux_os" = xyes; then
  build_mount=yes
  have_blkid=no
  have_volume_id=no
  if test "x$with_fsprobe" = xblkid; then
    UTIL_CHECK_LIB(blkid, blkid_known_fstype)
  elif test "x$with_fsprobe" = xvolume_id; then
    UTIL_CHECK_LIB(volume_id, volume_id_encode_string)
  fi
  if test "x$have_blkid" = xno && test "x$have_volume_id" = xno; then
    AC_MSG_ERROR([blkid or volume_id is needed to build util-linux-ng mount utilities])
  fi
else
  AC_MSG_WARN([non-linux system; do not build mount utilities])
  build_mount=no
fi
AM_CONDITIONAL(BUILD_MOUNT, test "x$build_mount" = xyes)

dnl UTIL_PKG_STATIC(VARIABLE, MODULES)
dnl ----------------------------------
AC_DEFUN([UTIL_PKG_STATIC], [
  if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then
    $1=`pkg-config --libs --static "$2"`
  else
    AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available])
  fi
])

# These default values should work in most cases:
: ${BLKID_LIBS='-lblkid -luuid'}
: ${VOLUMEID_LIBS='-lvolume_id'}

# ... but for static build, we need to consult pkg-config:
if test -n "$enable_static_programs"; then
  case $with_fsprobe in
  blkid) UTIL_PKG_STATIC([BLKID_LIBS_STATIC], [blkid]) ;;
  volume_id) UTIL_PKG_STATIC([VOLUMEID_LIBS_STATIC], [libvolume_id]) ;;
  esac
fi

AC_ARG_VAR([BLKID_LIBS], [-l options for linking dynamically with blkid])
AC_ARG_VAR([BLKID_LIBS_STATIC], [-l options for linking statically with blkid])
AC_ARG_VAR([VOLUMEID_LIBS], [-l options for linking dynamically with volume_id])
AC_ARG_VAR([VOLUMEID_LIBS_STATIC], [-l options for linking statically with volume_id])


AM_GNU_GETTEXT_VERSION([0.14.1])
AM_GNU_GETTEXT([external])
if test -d "$srcdir/po"
then
    ALL_LINGUAS=`cd $srcdir/po > /dev/null && echo *.po | sed 's/\.po//g'`
else
    ALL_LINGUAS="af am ar as be bg bn_IN bn ca cs cy da de el en_GB es et eu_ES fa fi fr gl gu he hi hr hu hy id is it ja ka kn ko ku lo lt lv mk ml mr ms my nb nl nn no nso or pa pl pt_BR pt ro ru si sk sl sq sr@Latn sr sv ta te th tr uk ur vi zh_CN zh_TW zu"
fi

AC_ARG_WITH([ncurses],
  AS_HELP_STRING([--with-ncurses], [build with non-wide ncurses, default is wide version
                                    (--without-ncurses disables all ncurses(w) support)]),
  [], with_ncurses=auto
)
AM_CONDITIONAL(HAVE_NCURSES, false)

if test "x$with_ncurses" != xno; then
  have_ncurses=no
  AC_CHECK_HEADERS([ncurses.h ncurses/ncurses.h], [
    if test "x$with_ncurses" = xauto; then
      UTIL_CHECK_LIB(ncursesw, initscr, ncurses)
      if test "x$have_ncurses" = xyes; then
        NCURSES_LIBS="-lncursesw"
      fi
    fi
    if test "x$have_ncurses" = xno; then
      UTIL_CHECK_LIB(ncurses, initscr)
      if test "x$have_ncurses" = xyes; then
        NCURSES_LIBS="-lncurses"
      fi
    fi
  ])
  if test "x$have_ncurses" = xno; then
    AC_MSG_ERROR([ncurses or ncursesw selected, but library not found (--without-ncurses to disable)])
  fi
fi
AC_SUBST([NCURSES_LIBS])


AC_ARG_WITH([slang],
  AS_HELP_STRING([--with-slang], [compile cfdisk with slang]),
  [], with_slang=no
)

have_tinfo=no
AC_CHECK_LIB(tinfo, tgetent, [have_tinfo=yes])
AM_CONDITIONAL(HAVE_TINFO, test "x$have_tinfo" = xyes)

use_slang=no
if test "x$with_slang" = xyes; then
  AC_CHECK_HEADERS([slcurses.h slang/slcurses.h], [use_slang=yes])
  if test "x$use_slang" = xno; then
    AC_MSG_ERROR([slang selected but slcurses.h not found])
  fi
fi
AM_CONDITIONAL(USE_SLANG, test "x$use_slang" = xyes)


AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#define _XOPEN_SOURCE
#include <unistd.h>
]], [[
char *c = crypt("abc","pw");
]])],[],[
  LIBS="$LIBS -lcrypt"
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
  #define _XOPEN_SOURCE
  #include <unistd.h>
  ]], [[
  char *c = crypt("abc","pw");
  ]])],[
  AC_DEFINE(NEED_LIBCRYPT, 1, [Do we need -lcrypt?])
  need_libcrypt=yes
  ],[
  AC_MSG_ERROR([crypt() is not available])
  ])
])

AM_CONDITIONAL(NEED_LIBCRYPT, test "x$need_libcrypt" = xyes)

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
]], [[
printf(__progname);
]])],
[AC_DEFINE(HAVE___PROGNAME, 1, Do we have __progname?)
])


AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <wchar.h>
#include <wctype.h>
#include <stdio.h>
]], [[
  wchar_t wc;
  wint_t w;
  w = fgetwc(stdin);
  if (w == WEOF) exit(1);
  wc = w;
  fputwc(wc,stdout);
]])],
[AC_DEFINE(HAVE_WIDECHAR,1,Do we have wide character support?)
])


dnl UTIL_CHECK_SYSCALL(SYSCALL, FALLBACK, ...)
dnl Only specify FALLBACK if the SYSCALL
dnl you're checking for is a "newish" one
dnl -------------------------------------
AC_DEFUN([UTIL_CHECK_SYSCALL], [
  dnl This macro uses host_cpu.
  AC_REQUIRE([AC_CANONICAL_HOST])
  AC_CACHE_CHECK([for syscall $1],
    [util_cv_syscall_$1],
    [_UTIL_SYSCALL_CHECK_DECL([SYS_$1],
      [syscall=SYS_$1],
      [dnl Our libc failed use, so see if we can get the kernel
      dnl headers to play ball ...
      _UTIL_SYSCALL_CHECK_DECL([_NR_$1],
	[syscall=_NR_$1],
	[
	  syscall=no
	  if test "x$linux_os" = xyes; then
	    case $host_cpu in
	      _UTIL_CHECK_SYSCALL_FALLBACK(m4_shift($@))
	    esac
	  fi
        ])
      ])
    util_cv_syscall_$1=$syscall
    ])
  AM_CONDITIONAL([HAVE_]m4_toupper($1), [test "x$util_cv_syscall_$1" != xno])
  case $util_cv_syscall_$1 in #(
  no) AC_MSG_WARN([Unable to detect syscall $1.]) ;;
  SYS_*) ;;
  *) AC_DEFINE_UNQUOTED([SYS_$1], [$util_cv_syscall_$1],
	[Fallback syscall number for $1]) ;;
  esac
])

dnl _UTIL_SYSCALL_CHECK_DECL(SYMBOL, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
dnl Check if SYMBOL is declared, using the headers needed for syscall checks.
dnl -------------------------------------
m4_define([_UTIL_SYSCALL_CHECK_DECL],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/syscall.h>
#include <unistd.h>
]], [[int test = $1;]])],
[$2], [$3])
])

dnl _UTIL_CHECK_SYSCALL_FALLBACK(PATTERN, VALUE, ...)
dnl Helper macro to create the body for the above `case'.
dnl -------------------------------------
m4_define([_UTIL_CHECK_SYSCALL_FALLBACK],
[m4_ifval([$1],
  [#(
  $1) syscall="$2" ;;dnl
  _UTIL_CHECK_SYSCALL_FALLBACK(m4_shiftn(2, $@))])dnl
])


UTIL_CHECK_SYSCALL([pivot_root])
UTIL_CHECK_SYSCALL([sched_getaffinity])
UTIL_CHECK_SYSCALL([ioprio_set],
  [alpha],    [442],
  [i*86],     [289],
  [ia64*],    [1274],
  [powerpc*], [273],
  [s390*],    [282],
  [sparc*],   [196],
  [sh*],      [288],
  [x86_64*],  [251])
UTIL_CHECK_SYSCALL([ioprio_get],
  [alpha],    [443],
  [i*86],     [290],
  [ia64*],    [1275],
  [powerpc*], [274],
  [s390*],    [283],
  [sparc*],   [218],
  [sh*],      [289],
  [x86_64*],  [252])


AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <time.h>
#include <unistd.h>
]], [[
    int a = 0;
    struct tm *tm = localtime(0);
    if (a == -1)  /* false */
        sleep(tm->tm_gmtoff);
]])],
[AC_DEFINE(HAVE_TM_GMTOFF,1,[Does struct tm have a field tm_gmtoff?])
])

AC_CHECK_MEMBERS([struct termios.c_line],,,
    [[#include <termios.h>]])

AC_CHECK_DECLS([
 ADDR_NO_RANDOMIZE,
 FDPIC_FUNCPTRS,
 MMAP_PAGE_ZERO,
 ADDR_COMPAT_LAYOUT,
 READ_IMPLIES_EXEC,
 ADDR_LIMIT_32BIT,
 WHOLE_SECONDS,
 STICKY_TIMEOUTS,
 ADDR_LIMIT_3GB], [], [], [#include <linux/personality.h>])

AC_CHECK_HEADERS([sys/swap.h])

AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
#ifdef HAVE_SYS_SWAP_H
# include <sys/swap.h>
#endif
#include <unistd.h>
]],
[[swapon("/dev/null", 0);]])],
[AC_DEFINE(SWAPON_HAS_TWO_ARGS, 1, [Is swapon() declared with two parameters?])
],
[AC_MSG_NOTICE([Your libc thinks that swapon has 1 arg only.])
])


dnl UTIL_SET_ARCH(ARCHNAME, PATTERN)
dnl ---------------------------------
AC_DEFUN([UTIL_SET_ARCH], [
  cpu_$1=false
  case "$host" in
   $2) cpu_$1=true ;;
  esac
  AM_CONDITIONAL(AS_TR_CPP(ARCH_$1), [test "x$cpu_$1" = xtrue])
])

UTIL_SET_ARCH(I86, i?86-*)
UTIL_SET_ARCH(86_64, x86_64*)
UTIL_SET_ARCH(IA64, ia64*)
UTIL_SET_ARCH(S390, s390*)
UTIL_SET_ARCH(SPARC, sparc*)
UTIL_SET_ARCH(PPC, ppc*|powerpc*)
UTIL_SET_ARCH(M68K, m68*)
UTIL_SET_ARCH(MIPS, mips*)
UTIL_SET_ARCH(HPPA, hppa*)

AC_ARG_ENABLE([arch],
  AS_HELP_STRING([--enable-arch], [do build arch]),
  [], enable_arch=no
)
AM_CONDITIONAL(BUILD_ARCH, test "x$enable_arch" = xyes)

AC_ARG_ENABLE([agetty],
  AS_HELP_STRING([--disable-agetty], [do not build agetty]),
  [], enable_agetty=yes
)
AM_CONDITIONAL(BUILD_AGETTY, test "x$enable_agetty" = xyes)

AC_ARG_ENABLE([cramfs],
  AS_HELP_STRING([--disable-cramfs], [do not build fsck.cramfs, mkfs.cramfs]),
  [], enable_cramfs=check
)

if test "x$enable_cramfs" = xno; then
  build_cramfs=no
else
  build_cramfs=yes
  dnl Trick: leave the third parameter empty to get the default action.
  AC_CHECK_LIB(z, crc32, [], build_cramfs=no)
  case $enable_cramfs:$build_cramfs in
  yes:no) AC_MSG_ERROR([cramfs selected but libz not found]);;
  esac
fi
AM_CONDITIONAL(BUILD_CRAMFS, test "x$build_cramfs" = xyes)


AC_ARG_ENABLE([elvtune],
  AS_HELP_STRING([--enable-elvtune], [build elvtune (only works with 2.2 and 2.4 kernels)]),
  [], enable_elvtune=no
)
AM_CONDITIONAL(BUILD_ELVTUNE, test "x$enable_elvtune" = xyes)


AC_ARG_ENABLE([init],
  AS_HELP_STRING([--enable-init], [build simpleinit, shutdown, initctl]),
  [], enable_init=no
)
AM_CONDITIONAL(BUILD_INIT, test "x$enable_init" = xyes)


AC_ARG_ENABLE([kill],
  AS_HELP_STRING([--enable-kill], [build kill]),
  [], enable_kill=no
)
AM_CONDITIONAL(BUILD_KILL, test "x$enable_kill" = xyes)


AC_ARG_ENABLE([last],
  AS_HELP_STRING([--enable-last], [build last]),
  [], enable_last=no
)
AM_CONDITIONAL(BUILD_LAST, test "x$enable_last" = xyes)


AC_ARG_ENABLE([mesg],
  AS_HELP_STRING([--enable-mesg], [build mesg]),
  [], enable_mesg=no
)
AM_CONDITIONAL(BUILD_MESG, test "x$enable_mesg" = xyes)


AC_ARG_ENABLE([partx],
  AS_HELP_STRING([--enable-partx], [build addpart, delpart, partx]),
  [], enable_partx=no
)
AM_CONDITIONAL(BUILD_PARTX, test "x$enable_partx" = xyes)


AC_ARG_ENABLE([raw],
  AS_HELP_STRING([--enable-raw], [build raw]),
  [], enable_raw=no
)
AM_CONDITIONAL(BUILD_RAW, test "x$enable_raw" = xyes)


AC_ARG_ENABLE([rdev],
  AS_HELP_STRING([--enable-rdev], [build rdev on i386]),
  [], enable_rdev=no
)
AM_CONDITIONAL(BUILD_RDEV, test "x$enable_rdev" = xyes)


AC_ARG_ENABLE([rename],
  AS_HELP_STRING([--disable-rename], [do not build rename]),
  [], enable_rename=yes
)
AM_CONDITIONAL(BUILD_RENAME, test "x$enable_rename" = xyes)


AC_ARG_ENABLE([reset],
  AS_HELP_STRING([--enable-reset], [build reset]),
  [], enable_reset=no
)
AM_CONDITIONAL(BUILD_RESET, test "x$enable_reset" = xyes)


AC_ARG_ENABLE([login-utils],
  AS_HELP_STRING([--enable-login-utils], [build chfn, chsh, login, newgrp, vipw]),
  [], enable_login_utils=no
)
AM_CONDITIONAL(BUILD_LOGIN_UTILS, test "x$enable_login_utils" = xyes)

AC_ARG_WITH([pam],
  [AS_HELP_STRING([--without-pam], [compile login-utils without PAM support])])

AM_CONDITIONAL(HAVE_PAM, false)
if test "x$enable_login_utils" = xyes && test "x$with_pam" != xno; then
  AC_CHECK_HEADERS([security/pam_misc.h],
    [AM_CONDITIONAL(HAVE_PAM, true)],
    [if test "x$with_pam" = xyes; then
	AC_MSG_ERROR([PAM selected but security/pam_misc.h not found])
     fi
    ])
fi

AC_ARG_WITH([selinux],
  AS_HELP_STRING([--with-selinux], [compile with SELinux support]),
  [], with_selinux=no
)

if test "x$with_selinux" = xno; then
  AM_CONDITIONAL(HAVE_SELINUX, false)
else
  UTIL_CHECK_LIB(selinux, getprevcon)
  case "$with_selinux:$have_selinux" in
  yes:no) AC_MSG_ERROR([SELinux selected but libselinux not found]);;
  esac
fi

if test "x$have_selinux" = xyes; then
  SELINUX_LIBS="-lselinux -lsepol"
  SELINUX_LIBS_STATIC="-lselinux -lsepol"
fi
AC_SUBST([SELINUX_LIBS])
AC_SUBST([SELINUX_LIBS_STATIC])

AC_ARG_WITH([audit],
  AS_HELP_STRING([--with-audit], [compile with audit support]),
  [], with_audit=no
)

if test "x$with_audit" = xno; then
  AM_CONDITIONAL(HAVE_AUDIT, false)
else
  UTIL_CHECK_LIB(audit, audit_log_user_message)
  case "$with_audit:$have_audit" in
  yes:no)
   AC_MSG_ERROR([Audit selected but libaudit not found (or doesn't support audit_log_user_message())])
   ;;
  esac
fi

# TODO remove devmapper from blkid
#
AC_ARG_ENABLE([blkid-devmapper],
   AS_HELP_STRING([--enable-blkid-devmapper], [build with device-mapper support]),
   [], with_blkid-devmapper=no
)
if test x$with_devmapper = xno; then
  AC_MSG_RESULT([Disabling device-mapper support])
  AM_CONDITIONAL(HAVE_DEVMAPPER, false)
  DEVMAPPER_LIBS_STATIC=''
  DEVMAPPER_REQ=''
  DEVMAPPER_PC_LIBS=''
  DEVMAPPER_LIBS=''
else
  AC_MSG_RESULT([Enabling device-mapper support])
  UTIL_CHECK_LIB(devmapper, dm_tree_create)
  case $with_blkid-devmapper:$have_blkid-devmapper in
  yes:no) AC_MSG_ERROR([devmapper selected but libdevmapper not found]);;
  esac
  UTIL_PKG_STATIC([DEVMAPPER_LIBS_STATIC], [devmapper])
  DEVMAPPER_LIBS="-ldevmapper"
  DEVMAPPER_REQ="devmapper"
  DEVMAPPER_PC_LIBS="-ldevmapper"

  # work around stupid devmapper.pc bug in Debian
  case "$DEVMAPPER_LIBS_STATIC" in
  *pthread*)
     ;;
  *)
    AC_MSG_WARN([Working around Debian bug 390243...])
    DEVMAPPER_LIBS_STATIC="-pthread $DEVMAPPER_LIBS_STATIC"
    ;;
  esac
fi

AC_SUBST([DEVMAPPER_LIBS])
AC_SUBST([DEVMAPPER_REQ])
AC_SUBST([DEVMAPPER_PC_LIBS])
AC_SUBST([DEVMAPPER_LIBS_STATIC])


AC_ARG_ENABLE([schedutils],
  AS_HELP_STRING([--disable-schedutils], [do not build chrt, ionice, teskset]),
  [], enable_schedutils=yes
)
AM_CONDITIONAL(BUILD_SCHEDUTILS, test "x$enable_schedutils" = xyes)


AC_ARG_ENABLE([wall],
  AS_HELP_STRING([--disable-wall], [do not build wall]),
  [], enable_wall=yes
)
AM_CONDITIONAL(BUILD_WALL, test "x$enable_wall" = xyes)


AC_ARG_ENABLE([write],
  AS_HELP_STRING([--enable-write], [build write]),
  [], enable_write=no
)
AM_CONDITIONAL(BUILD_WRITE, test "x$enable_write" = xyes)


AC_ARG_ENABLE([chsh-only-listed],
  AS_HELP_STRING([--disable-chsh-only-listed], [chsh: allow shells not in /etc/shells]),
  [], enable_chsh_only_listed=yes
)

if test "x$enable_chsh_only_listed" = xyes; then
  AC_DEFINE(ONLY_LISTED_SHELLS, 1, [Should chsh allow only shells in /etc/shells?])
fi


AC_ARG_ENABLE([login-chown-vcs],
  AS_HELP_STRING([--enable-login-chown-vcs], [let login chown /dev/vcsN]),
  [], enable_login_chown_vcs=no
)

if test "x$enable_login_chown_vcs" = xyes; then
  AC_DEFINE(LOGIN_CHOWN_VCS, 1, [Should login chown /dev/vcsN?])
fi


AC_ARG_ENABLE([login-stat-mail],
  AS_HELP_STRING([--enable-login-stat-mail], [let login stat() the mailbox]),
  [], enable_login_stat_mail=no
)

if test "x$enable_login_stat_mail" = xyes; then
  AC_DEFINE(LOGIN_STAT_MAIL, 1, [Should login stat() the mailbox?])
fi


AC_ARG_ENABLE([pg-bell],
  AS_HELP_STRING([--disable-pg-bell], [let pg not ring the bell on invalid keys]),
  [], enable_pg_bell=yes
)

if test "x$enable_pg_bell" = xyes; then
  AC_DEFINE(PG_BELL, 1, [Should pg ring the bell on invalid keys?])
fi


AC_ARG_ENABLE([require-password],
  AS_HELP_STRING([--disable-require-password], [do not require the user to enter the password in chfn and chsh]),
  [], enable_require_password=yes
)

if test "x$enable_require_password" = xyes; then
  AC_DEFINE(REQUIRE_PASSWORD, 1, [Should chfn and chsh require the user to enter the password?])
fi


AC_ARG_ENABLE([use-tty-group],
  AS_HELP_STRING([--disable-use-tty-group], [do not install wall and write setgid tty]),
  [], enable_use_tty_group=yes
)
AM_CONDITIONAL(USE_TTY_GROUP, test "x$enable_use_tty_group" = xyes)

if test "x$enable_use_tty_group" = xyes; then
  AC_DEFINE(USE_TTY_GROUP, 1, [Should wall and write be installed setgid tty?])
fi

AC_ARG_ENABLE([makeinstall-chown],
  AS_HELP_STRING([--disable-makeinstall-chown], [do not do chown-like operations during "make install"]),
  [], enable_makeinstall_chown=yes
)
AM_CONDITIONAL(MAKEINSTALL_DO_CHOWN, test "x$enable_makeinstall_chown" = xyes)


AC_ARG_VAR([SUID_CFLAGS],
	   [CFLAGS used for binaries which are usually with the suid bit])
AC_ARG_VAR([SUID_LDFLAGS],
	   [LDFLAGS used for binaries which are usually with the suid bit])

LIBS=""


AC_CONFIG_HEADERS(config.h)

AC_CONFIG_FILES([
Makefile
disk-utils/Makefile
fdisk/Makefile
getopt/Makefile
hwclock/Makefile
include/Makefile
lib/Makefile
libs/Makefile
libs/blkid/blkid.pc
libs/blkid/libblkid.3
libs/blkid/Makefile
libs/blkid/src/blkid_types.h
libs/blkid/src/Makefile
login-utils/Makefile
misc-utils/Makefile
mount/Makefile
partx/Makefile
po/Makefile.in
schedutils/Makefile
sys-utils/Makefile
text-utils/Makefile
tests/Makefile
tests/helpers/Makefile
tests/commands.sh
misc-utils/chkdupexe:misc-utils/chkdupexe.pl
])

AC_OUTPUT