# Process this file with autoconf to produce a configure script.
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AC_INIT([GNU make],[3.81],[bug-make@gnu.org])
AC_PREREQ(2.59)
AC_REVISION([[$Id: configure.in,v 1.142 2006/04/01 06:36:40 psmith Exp $]])
# Autoconf setup
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# Checks for libraries.
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# Checks for header files.
AC_HEADER_STDC
AC_HEADER_DIRENT
AC_HEADER_STAT
AC_HEADER_TIME
AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h)
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AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
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AC_MSG_CHECKING([whether to use high resolution file timestamps])
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AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
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# Check for DOS-style pathnames.
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# See if we have a standard version of gettimeofday(). Since actual
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AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
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if test "$ac_cv_func_gettimeofday" = yes; then
AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
[Define if you have a standard gettimeofday function])
fi
AC_CHECK_FUNCS( memcpy memmove strchr strdup mkstemp mktemp fdopen \
bsd_signal dup2 getcwd realpath sigsetmask sigaction \
getgroups seteuid setegid setlinebuf setreuid setregid \
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lstat readlink atexit)
AC_FUNC_SETVBUF_REVERSED
# strcoll() is used by the GNU glob library
AC_FUNC_STRCOLL
AC_FUNC_ALLOCA
AC_FUNC_FORK([])
AC_FUNC_VPRINTF
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_GETLOADAVG
# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
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AC_DEFINE(NLIST_STRUCT, 1,
[Define if struct nlist.n_name is a pointer rather than an array.])
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AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
[AC_INCLUDES_DEFAULT
#include <signal.h>
/* NetBSD declares sys_siglist in unistd.h. */
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
])
# Check out the wait reality.
AC_CHECK_HEADERS(sys/wait.h)
AC_CHECK_FUNCS(waitpid wait3)
AC_MSG_CHECKING(for union wait)
AC_CACHE_VAL(make_cv_union_wait, [dnl
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/wait.h>]],
[[union wait status; int pid; pid = wait (&status);
#ifdef WEXITSTATUS
/* Some POSIXoid systems have both the new-style macros and the old
union wait type, and they do not work together. If union wait
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if (WEXITSTATUS (status) != 0) pid = -1;
#ifdef WTERMSIG
/* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
-- blow chunks here --
#endif
#endif
#ifdef HAVE_WAITPID
/* Make sure union wait works with waitpid. */
pid = waitpid (-1, &status, 0);
#endif
]])],
[make_cv_union_wait=yes],
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AC_DEFINE(HAVE_UNION_WAIT, 1,
[Define this if you have the \`union wait' type in <sys/wait.h>.])
fi
AC_MSG_RESULT($make_cv_union_wait)
# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
if test "$PATH_SEPARATOR" = ';'; then
AC_DEFINE(HAVE_DOS_PATHS, 1,
[Define this if your system requires backslashes or drive specs in pathnames.])
fi
# See if the user wants to use pmake's "customs" distributed build capability
AC_SUBST(REMOTE) REMOTE=stub
use_customs=false
AC_ARG_WITH(customs,
AC_HELP_STRING([--with-customs=DIR],
[enable remote jobs via Customs--see README.customs]),
[case $withval in
n|no) : ;;
*) make_cppflags="$CPPFLAGS"
case $withval in
y|ye|yes) : ;;
*) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
esac
CF_NETLIBS
AC_CHECK_HEADER(customs.h,
[use_customs=true
REMOTE=cstms
LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
[with_customs=no
CPPFLAGS="$make_cppflags" make_badcust=yes])
;;
esac])
# Tell automake about this, so it can include the right .c files.
AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)
# See if the user asked to handle case insensitive file systems.
AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
AC_ARG_ENABLE(case-insensitive-file-system,
AC_HELP_STRING([--enable-case-insensitive-file-system],
[enable case insensitive file system support]),
case_insensitive_fs="yes" AC_DEFINE(HAVE_CASE_INSENSITIVE_FS),
case_insensitive_fs="no")
# See if we can handle the job server feature, and if the user wants it.
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AC_HELP_STRING([--disable-job-server],
[disallow recursive make communication during -jN]),
[make_cv_job_server="$enableval" user_job_server="$enableval"],
[make_cv_job_server="yes"])
has_wait_nohang=yes
case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
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esac
AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
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[make_cv_sa_restart=yes],
[make_cv_sa_restart=no])])
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AC_DEFINE(HAVE_SA_RESTART, 1,
[Define if <signal.h> defines the SA_RESTART constant.])
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# enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
# but do it after HAVE_SA_RESTART has been defined.
case "$host_os" in
os2*) make_cv_sa_restart=yes ;;
esac
case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
yes/yes/yes/yes/yes)
AC_DEFINE(MAKE_JOBSERVER, 1,
[Define this to enable job server support in GNU make.]);;
esac
# if we have both lstat() and readlink() then we can support symlink
# timechecks.
case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
yes/yes)
AC_DEFINE(MAKE_SYMLINKS, 1,
[Define this to enable symbolic link timestamp checking.]);;
esac
# Find the SCCS commands, so we can include them in our default rules.
AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
if test -f /usr/sccs/get; then
make_cv_path_sccs_get=/usr/sccs/get
else
make_cv_path_sccs_get=get
fi])
AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
[Define to the name of the SCCS 'get' command.])
ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
test -f s.conftest; then
# We successfully created an SCCS file.
AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
test -f conftoast; then
make_cv_sys_get_minus_G=yes
else
make_cv_sys_get_minus_G=no
fi])
case "$make_cv_sys_get_minus_G" in
yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
[Define this if the SCCS 'get' command understands the '-G<file>' option.]);;
esac
fi
rm -f s.conftest conftoast
# Check the system to see if it provides GNU glob. If not, use our
# local version.
AC_MSG_CHECKING(if system libc has GNU glob)
AC_CACHE_VAL(make_cv_sys_gnu_glob, [
AC_EGREP_CPP(gnu glob,[
#include <features.h>
#include <glob.h>
#include <fnmatch.h>
#define GLOB_INTERFACE_VERSION 1
#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
# include <gnu-versions.h>
# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
gnu glob
# endif
#endif
], [AC_MSG_RESULT(yes)
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AC_SUBST(GLOBINC) GLOBINC='-I$(srcdir)/glob'
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# Tell automake about this, so it can build the right .c files.
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# Let the makefile know what our build host is
AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
MAKE_HOST="$host"
AC_SUBST(MAKE_HOST)
w32_target_env=no
AM_CONDITIONAL([WINDOWSENV], false)
case "$host" in
*-*-mingw32)
AM_CONDITIONAL(WINDOWSENV, true)
w32_target_env=yes
AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
;;
esac
# Include the Maintainer's Makefile section, if it's here.
MAINT_MAKEFILE=/dev/null
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MAINT_MAKEFILE="$srcdir/maintMakefile"
fi
AC_SUBST_FILE(MAINT_MAKEFILE)
# Allow building with dmalloc
AM_WITH_DMALLOC
# Forcibly disable SET_MAKE. If it's set it breaks things like the test
# scripts, etc.
SET_MAKE=
# Sanity check and inform the user of what we found
case "$make_badcust" in
yes) echo
echo "WARNING: --with-customs specified but no customs.h could be found;"
echo " disabling Customs support."
echo ;;
esac
case "$with_customs" in
""|n|no|y|ye|yes) ;;
*) if test -f "$with_customs/lib/libcustoms.a"; then
:
else
echo
echo "WARNING: '$with_customs/lib' does not appear to contain the"
echo " Customs library. You must build and install Customs"
echo " before compiling GNU make."
echo
fi ;;
esac
case "$has_wait_nohang" in
no) echo
echo "WARNING: Your system has neither waitpid() nor wait3()."
echo " Without one of these, signal handling is unreliable."
echo " You should be aware that running GNU make with -j"
echo " could result in erratic behavior."
echo ;;
esac
case "$make_cv_job_server/$user_job_server" in
no/yes) echo
echo "WARNING: Make job server requires a POSIX-ish system that"
echo " supports the pipe(), sigaction(), and either"
echo " waitpid() or wait3() functions. Your system doesn't"
echo " appear to provide one or more of those."
echo " Disabling job server support."
echo ;;
esac
# Specify what files are to be created.
AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)
# OK, do it!
AC_OUTPUT
# We only generate the build.sh if we have a build.sh.in; we won't have
# one before we've created a distribution.
if test -f "$srcdir/build.sh.in"; then
./config.status --file build.sh
chmod +x build.sh
fi
dnl Local Variables:
dnl comment-start: "dnl "
dnl comment-end: ""
dnl comment-start-skip: "\\bdnl\\b\\s *"
dnl compile-command: "make configure config.h.in"
dnl End: