AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+ if test -z "$CC"; then
+ case "`uname -s`" in
+ *win32* | *WIN32*)
+ AC_CHECK_PROG(CC, cl, cl) ;;
+ esac
+ fi
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
if test $ac_cv_prog_gcc = yes; then
GCC=yes
+else
+ GCC=
+fi
+
dnl Check whether -g works, even if CFLAGS is set, in case the package
dnl plays around with CFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
- ac_test_CFLAGS="${CFLAGS+set}"
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS=
- AC_PROG_CC_G
- if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
- elif test $ac_cv_prog_cc_g = yes; then
+ac_test_CFLAGS="${CFLAGS+set}"
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS=
+AC_PROG_CC_G
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS="$ac_save_CFLAGS"
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
CFLAGS="-g -O2"
else
- CFLAGS="-O2"
+ CFLAGS="-g"
fi
else
- GCC=
- test "${CFLAGS+set}" = set || CFLAGS="-g"
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
fi
])
AC_DEFUN(AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
-AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
+AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, gcc)
AC_PROG_CXX_WORKS
AC_PROG_CXX_GNU
if test $ac_cv_prog_gxx = yes; then
GXX=yes
+else
+ GXX=
+fi
+
dnl Check whether -g works, even if CXXFLAGS is set, in case the package
dnl plays around with CXXFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
- ac_test_CXXFLAGS="${CXXFLAGS+set}"
- ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=
- AC_PROG_CXX_G
- if test "$ac_test_CXXFLAGS" = set; then
- CXXFLAGS="$ac_save_CXXFLAGS"
- elif test $ac_cv_prog_cxx_g = yes; then
+ac_test_CXXFLAGS="${CXXFLAGS+set}"
+ac_save_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS=
+AC_PROG_CXX_G
+if test "$ac_test_CXXFLAGS" = set; then
+ CXXFLAGS="$ac_save_CXXFLAGS"
+elif test $ac_cv_prog_cxx_g = yes; then
+ if test "$GXX" = yes; then
CXXFLAGS="-g -O2"
else
- CXXFLAGS="-O2"
+ CXXFLAGS="-g"
fi
else
- GXX=
- test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
+ if test "$GXX" = yes; then
+ CXXFLAGS="-O2"
+ else
+ CXXFLAGS=
+ fi
fi
])
Syntax Error], ,
CPP="${CC-cc} -E -traditional-cpp"
AC_TRY_CPP([#include <assert.h>
-Syntax Error], , CPP=/lib/cpp))
+Syntax Error], ,
+ CPP="${CC-cc} -nologo -E"
+ AC_TRY_CPP([#include <assert.h>
+Syntax Error], , CPP=/lib/cpp)))
ac_cv_prog_CPP="$CPP"])dnl
CPP="$ac_cv_prog_CPP"
else
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
AC_MSG_CHECKING(for a BSD compatible install)
if test -z "$INSTALL"; then
AC_CACHE_VAL(ac_cv_path_install,
-[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
+[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":"
for ac_dir in $PATH; do
# Account for people who put trailing slashes in PATH elements.
case "$ac_dir/" in
/|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
*)
# OSF1 and SCO ODT 3.0 have their own names for install.
- for ac_prog in ginstall installbsd scoinst install; do
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
if test -f $ac_dir/$ac_prog; then
if test $ac_prog = install &&
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
# AIX install. It has an incompatible calling convention.
- # OSF/1 installbsd also uses dspmsg, but is usable.
:
else
ac_cv_path_install="$ac_dir/$ac_prog -c"
AC_DEFUN(AC_FUNC_SETPGRP,
[AC_CACHE_CHECK(whether setpgrp takes no argument, ac_cv_func_setpgrp_void,
AC_TRY_RUN([
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
/*
* If this system has a BSD-style setpgrp, which takes arguments, exit
* successfully.
);
}
}],
-ac_cv_func_vfork_works=yes, ac_cv_func_vfork_works=no, AC_CHECK_FUNC(vfork))])
+ac_cv_func_vfork_works=yes, ac_cv_func_vfork_works=no, AC_CHECK_FUNC(vfork)
+ac_cv_func_vfork_works=$ac_cv_func_vfork)])
if test $ac_cv_func_vfork_works = no; then
AC_DEFINE(vfork, fork)
fi
#ifdef __GNUC__
# define alloca __builtin_alloca
#else
-# if HAVE_ALLOCA_H
-# include <alloca.h>
+# ifdef _MSC_VER
+# include <malloc.h>
+# define alloca _alloca
# else
-# ifdef _AIX
- #pragma alloca
+# if HAVE_ALLOCA_H
+# include <alloca.h>
# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca ();
+# endif
# endif
# endif
# endif
# that cause trouble. Some versions do not even contain alloca or
# contain a buggy version. If you still want to use their alloca,
# use ar to extract alloca.o from them instead of compiling alloca.c.
- ALLOCA=alloca.o
+ ALLOCA=alloca.${ac_objext}
AC_DEFINE(C_ALLOCA)
AC_CACHE_CHECK(whether alloca needs Cray hooks, ac_cv_os_cray,
}
], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
ac_cv_func_memcmp_clean=no)])
-test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.o"
+test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
AC_SUBST(LIBOBJS)dnl
])
if test $ac_cv_struct_st_blocks = yes; then
AC_DEFINE(HAVE_ST_BLOCKS)
else
- LIBOBJS="$LIBOBJS fileblocks.o"
+ LIBOBJS="$LIBOBJS fileblocks.${ac_objext}"
fi
AC_SUBST(LIBOBJS)dnl
])
[errprint(__file__:__line__: [$0] has been removed; don't do unportable things with arguments
)m4exit(4)])
+dnl Check the object extension used by the compiler: typically .o or
+dnl .obj. If this is called, some other behaviour will change,
+dnl determined by ac_objext.
+AC_DEFUN(AC_OBJEXT,
+[AC_MSG_CHECKING([for object suffix])
+AC_CACHE_VAL(ac_cv_objext,
+[rm -f conftest*
+echo 'int i = 1;' > conftest.$ac_ext
+if AC_TRY_EVAL(ac_compile); then
+ for ac_file in conftest.*; do
+ case $ac_file in
+ *.c) ;;
+ *) ac_cv_objext=`echo $ac_file | sed -e s/conftest.//` ;;
+ esac
+ done
+else
+ AC_MSG_ERROR([installation or configuration problem; compiler does not work])
+fi
+rm -f conftest*])
+AC_MSG_RESULT($ac_cv_objext)
+OBJEXT=$ac_cv_objext
+ac_objext=$ac_cv_objext
+AC_SUBST(OBJEXT)])
+
dnl ### Checks for operating system services
AC_SUBST(X_EXTRA_LIBS)dnl
])
+dnl Check for cygwin32. This is a way to set the right value for
+dnl EXEEXT.
+AC_DEFUN(AC_CYGWIN32,
+[AC_CACHE_CHECK(for cygwin32 environment, ac_cv_cygwin32,
+[AC_TRY_COMPILE(,[return __CYGWIN32__;],
+ac_cv_cygwin32=yes, ac_cv_cygwin32=no)
+rm -f conftest*])
+CYGWIN32=
+test "$ac_cv_cygwin32" = yes && CYGWIN32=yes])
+
+dnl Check for mingw32. This is another way to set the right value for
+dnl EXEEXT.
+AC_DEFUN(AC_MINGW32,
+[AC_CACHE_CHECK(for mingw32 environment, ac_cv_mingw32,
+[AC_TRY_COMPILE(,[return __MINGW32__;],
+ac_cv_mingw32=yes, ac_cv_mingw32=no)
+rm -f conftest*])
+MINGW32=
+test "$ac_cv_mingw32" = yes && MINGW32=yes])
+
+dnl Check for the extension used for executables. This knows that we
+dnl add .exe for cygwin32 or mingw32. Otherwise, it compiles a test
+dnl executable. If this is called, the executable extensions will be
+dnl automatically used by link commands run by the configure script.
+AC_DEFUN(AC_EXEEXT,
+[AC_REQUIRE([AC_CYGWIN32])
+AC_REQUIRE([AC_MINGW32])
+AC_MSG_CHECKING([for executable suffix])
+AC_CACHE_VAL(ac_cv_exeext,
+[if test "$CYGWIN32" = yes || test "$MINGW32" = yes; then
+ ac_cv_exeext=.exe
+else
+ rm -f conftest*
+ echo 'int main () { return 0; }' > conftest.$ac_ext
+ ac_cv_exeext=
+ if AC_TRY_EVAL(ac_link); then
+ for file in conftest.*; do
+ case $file in
+ *.c | *.o | *.obj) ;;
+ *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
+ esac
+ done
+ else
+ AC_MSG_ERROR([installation or configuration problem: compiler cannot create executables.])
+ fi
+ rm -f conftest*
+ test x"${ac_cv_exeext}" = x && ac_cv_exeext=no
+fi])
+EXEEXT=""
+test x"${ac_cv_exeext}" != xno && EXEEXT=${ac_cv_exeext}
+AC_MSG_RESULT(${ac_cv_exeext})
+dnl Setting ac_exeext will implicitly change the ac_link command.
+ac_exeext=$EXEEXT
+AC_SUBST(EXEEXT)])
+
dnl ### Checks for UNIX variants
dnl These are kludges which should be replaced by a single POSIX check.
AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+ if test -z "$CC"; then
+ case "`uname -s`" in
+ *win32* | *WIN32*)
+ AC_CHECK_PROG(CC, cl, cl) ;;
+ esac
+ fi
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
if test $ac_cv_prog_gcc = yes; then
GCC=yes
+else
+ GCC=
+fi
+
dnl Check whether -g works, even if CFLAGS is set, in case the package
dnl plays around with CFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
- ac_test_CFLAGS="${CFLAGS+set}"
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS=
- AC_PROG_CC_G
- if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
- elif test $ac_cv_prog_cc_g = yes; then
+ac_test_CFLAGS="${CFLAGS+set}"
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS=
+AC_PROG_CC_G
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS="$ac_save_CFLAGS"
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
CFLAGS="-g -O2"
else
- CFLAGS="-O2"
+ CFLAGS="-g"
fi
else
- GCC=
- test "${CFLAGS+set}" = set || CFLAGS="-g"
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
fi
])
AC_DEFUN(AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
-AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
+AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, gcc)
AC_PROG_CXX_WORKS
AC_PROG_CXX_GNU
if test $ac_cv_prog_gxx = yes; then
GXX=yes
+else
+ GXX=
+fi
+
dnl Check whether -g works, even if CXXFLAGS is set, in case the package
dnl plays around with CXXFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
- ac_test_CXXFLAGS="${CXXFLAGS+set}"
- ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=
- AC_PROG_CXX_G
- if test "$ac_test_CXXFLAGS" = set; then
- CXXFLAGS="$ac_save_CXXFLAGS"
- elif test $ac_cv_prog_cxx_g = yes; then
+ac_test_CXXFLAGS="${CXXFLAGS+set}"
+ac_save_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS=
+AC_PROG_CXX_G
+if test "$ac_test_CXXFLAGS" = set; then
+ CXXFLAGS="$ac_save_CXXFLAGS"
+elif test $ac_cv_prog_cxx_g = yes; then
+ if test "$GXX" = yes; then
CXXFLAGS="-g -O2"
else
- CXXFLAGS="-O2"
+ CXXFLAGS="-g"
fi
else
- GXX=
- test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
+ if test "$GXX" = yes; then
+ CXXFLAGS="-O2"
+ else
+ CXXFLAGS=
+ fi
fi
])
Syntax Error], ,
CPP="${CC-cc} -E -traditional-cpp"
AC_TRY_CPP([#include <assert.h>
-Syntax Error], , CPP=/lib/cpp))
+Syntax Error], ,
+ CPP="${CC-cc} -nologo -E"
+ AC_TRY_CPP([#include <assert.h>
+Syntax Error], , CPP=/lib/cpp)))
ac_cv_prog_CPP="$CPP"])dnl
CPP="$ac_cv_prog_CPP"
else
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
AC_MSG_CHECKING(for a BSD compatible install)
if test -z "$INSTALL"; then
AC_CACHE_VAL(ac_cv_path_install,
-[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
+[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":"
for ac_dir in $PATH; do
# Account for people who put trailing slashes in PATH elements.
case "$ac_dir/" in
/|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
*)
# OSF1 and SCO ODT 3.0 have their own names for install.
- for ac_prog in ginstall installbsd scoinst install; do
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
if test -f $ac_dir/$ac_prog; then
if test $ac_prog = install &&
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
# AIX install. It has an incompatible calling convention.
- # OSF/1 installbsd also uses dspmsg, but is usable.
:
else
ac_cv_path_install="$ac_dir/$ac_prog -c"
AC_DEFUN(AC_FUNC_SETPGRP,
[AC_CACHE_CHECK(whether setpgrp takes no argument, ac_cv_func_setpgrp_void,
AC_TRY_RUN([
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
/*
* If this system has a BSD-style setpgrp, which takes arguments, exit
* successfully.
);
}
}],
-ac_cv_func_vfork_works=yes, ac_cv_func_vfork_works=no, AC_CHECK_FUNC(vfork))])
+ac_cv_func_vfork_works=yes, ac_cv_func_vfork_works=no, AC_CHECK_FUNC(vfork)
+ac_cv_func_vfork_works=$ac_cv_func_vfork)])
if test $ac_cv_func_vfork_works = no; then
AC_DEFINE(vfork, fork)
fi
#ifdef __GNUC__
# define alloca __builtin_alloca
#else
-# if HAVE_ALLOCA_H
-# include <alloca.h>
+# ifdef _MSC_VER
+# include <malloc.h>
+# define alloca _alloca
# else
-# ifdef _AIX
- #pragma alloca
+# if HAVE_ALLOCA_H
+# include <alloca.h>
# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca ();
+# endif
# endif
# endif
# endif
# that cause trouble. Some versions do not even contain alloca or
# contain a buggy version. If you still want to use their alloca,
# use ar to extract alloca.o from them instead of compiling alloca.c.
- ALLOCA=alloca.o
+ ALLOCA=alloca.${ac_objext}
AC_DEFINE(C_ALLOCA)
AC_CACHE_CHECK(whether alloca needs Cray hooks, ac_cv_os_cray,
}
], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
ac_cv_func_memcmp_clean=no)])
-test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.o"
+test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
AC_SUBST(LIBOBJS)dnl
])
if test $ac_cv_struct_st_blocks = yes; then
AC_DEFINE(HAVE_ST_BLOCKS)
else
- LIBOBJS="$LIBOBJS fileblocks.o"
+ LIBOBJS="$LIBOBJS fileblocks.${ac_objext}"
fi
AC_SUBST(LIBOBJS)dnl
])
[errprint(__file__:__line__: [$0] has been removed; don't do unportable things with arguments
)m4exit(4)])
+dnl Check the object extension used by the compiler: typically .o or
+dnl .obj. If this is called, some other behaviour will change,
+dnl determined by ac_objext.
+AC_DEFUN(AC_OBJEXT,
+[AC_MSG_CHECKING([for object suffix])
+AC_CACHE_VAL(ac_cv_objext,
+[rm -f conftest*
+echo 'int i = 1;' > conftest.$ac_ext
+if AC_TRY_EVAL(ac_compile); then
+ for ac_file in conftest.*; do
+ case $ac_file in
+ *.c) ;;
+ *) ac_cv_objext=`echo $ac_file | sed -e s/conftest.//` ;;
+ esac
+ done
+else
+ AC_MSG_ERROR([installation or configuration problem; compiler does not work])
+fi
+rm -f conftest*])
+AC_MSG_RESULT($ac_cv_objext)
+OBJEXT=$ac_cv_objext
+ac_objext=$ac_cv_objext
+AC_SUBST(OBJEXT)])
+
dnl ### Checks for operating system services
AC_SUBST(X_EXTRA_LIBS)dnl
])
+dnl Check for cygwin32. This is a way to set the right value for
+dnl EXEEXT.
+AC_DEFUN(AC_CYGWIN32,
+[AC_CACHE_CHECK(for cygwin32 environment, ac_cv_cygwin32,
+[AC_TRY_COMPILE(,[return __CYGWIN32__;],
+ac_cv_cygwin32=yes, ac_cv_cygwin32=no)
+rm -f conftest*])
+CYGWIN32=
+test "$ac_cv_cygwin32" = yes && CYGWIN32=yes])
+
+dnl Check for mingw32. This is another way to set the right value for
+dnl EXEEXT.
+AC_DEFUN(AC_MINGW32,
+[AC_CACHE_CHECK(for mingw32 environment, ac_cv_mingw32,
+[AC_TRY_COMPILE(,[return __MINGW32__;],
+ac_cv_mingw32=yes, ac_cv_mingw32=no)
+rm -f conftest*])
+MINGW32=
+test "$ac_cv_mingw32" = yes && MINGW32=yes])
+
+dnl Check for the extension used for executables. This knows that we
+dnl add .exe for cygwin32 or mingw32. Otherwise, it compiles a test
+dnl executable. If this is called, the executable extensions will be
+dnl automatically used by link commands run by the configure script.
+AC_DEFUN(AC_EXEEXT,
+[AC_REQUIRE([AC_CYGWIN32])
+AC_REQUIRE([AC_MINGW32])
+AC_MSG_CHECKING([for executable suffix])
+AC_CACHE_VAL(ac_cv_exeext,
+[if test "$CYGWIN32" = yes || test "$MINGW32" = yes; then
+ ac_cv_exeext=.exe
+else
+ rm -f conftest*
+ echo 'int main () { return 0; }' > conftest.$ac_ext
+ ac_cv_exeext=
+ if AC_TRY_EVAL(ac_link); then
+ for file in conftest.*; do
+ case $file in
+ *.c | *.o | *.obj) ;;
+ *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
+ esac
+ done
+ else
+ AC_MSG_ERROR([installation or configuration problem: compiler cannot create executables.])
+ fi
+ rm -f conftest*
+ test x"${ac_cv_exeext}" = x && ac_cv_exeext=no
+fi])
+EXEEXT=""
+test x"${ac_cv_exeext}" != xno && EXEEXT=${ac_cv_exeext}
+AC_MSG_RESULT(${ac_cv_exeext})
+dnl Setting ac_exeext will implicitly change the ac_link command.
+ac_exeext=$EXEEXT
+AC_SUBST(EXEEXT)])
+
dnl ### Checks for UNIX variants
dnl These are kludges which should be replaced by a single POSIX check.
projects / thirdparty / autoconf.git / commitdiff
