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make/configure.in
Paul Smith e2f16fdf45 Changes from Ralf Wildenhues.
2009-08-01 22:09:40 +00:00

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# Process this file with autoconf to produce a configure script.
#
# Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
# This file is part of GNU Make.
#
# GNU Make is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
AC_INIT([GNU make],[3.81.90],[bug-make@gnu.org])
AC_PREREQ(2.59)
AC_REVISION([[$Id$]])
# Autoconf setup
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_SRCDIR(vpath.c)
AC_CONFIG_HEADERS(config.h)
# Automake setup
AM_INIT_AUTOMAKE([1.9])
# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PROG_CPP
AC_CHECK_PROG(AR, ar, ar, ar)
# Perl is needed for the test suite (only)
AC_CHECK_PROG(PERL, perl, perl, perl)
# Specialized system macros
AC_CANONICAL_HOST
AC_AIX
AC_ISC_POSIX
AC_MINIX
# Enable gettext, in "external" mode.
AM_GNU_GETTEXT_VERSION(0.14.1)
AM_GNU_GETTEXT([external])
# This test must come as early as possible after the compiler configuration
# tests, because the choice of the file model can (in principle) affect
# whether functions and headers are available, whether they work, etc.
AC_SYS_LARGEFILE
# Checks for libraries.
AC_SEARCH_LIBS(getpwnam, [sun])
# 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)
# Set a flag if we have an ANSI C compiler
if test "$ac_cv_prog_cc_stdc" != no; then
AC_DEFINE(HAVE_ANSI_COMPILER, 1,
[Define to 1 if your compiler conforms to the ANSI C standard.])
fi
# Determine what kind of variadic function calls we support
AC_CHECK_HEADERS(stdarg.h varargs.h, break)
AM_PROG_CC_C_O
AC_C_CONST
AC_TYPE_SIGNAL
AC_TYPE_UID_T
AC_TYPE_PID_T
# Find some definition for uintmax_t
AC_CHECK_TYPE(uintmax_t,,[
uintmax_t="unsigned long"
AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"])
AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
[Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])])
# Find out whether our struct stat returns nanosecond resolution timestamps.
AC_STRUCT_ST_MTIM_NSEC
AC_MSG_CHECKING([whether to use high resolution file timestamps])
AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
make_cv_file_timestamp_hi_res=no
if test "$ac_cv_struct_st_mtim_nsec" != no; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
# if HAVE_INTTYPES_H
# include <inttypes.h>
# endif]],
[[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
[make_cv_file_timestamp_hi_res=yes],
[])
fi])
AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
if test "$make_cv_file_timestamp_hi_res" = yes; then
val=1
else
val=0
fi
AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
[Use high resolution file timestamps if nonzero.])
if test "$make_cv_file_timestamp_hi_res" = yes; then
# Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
# Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
AC_SEARCH_LIBS(clock_gettime, [rt posix4])
if test "$ac_cv_search_clock_gettime" != no; then
AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
[Define to 1 if you have the clock_gettime function.])
fi
fi
# Check for DOS-style pathnames.
pds_AC_DOS_PATHS
# See if we have a standard version of gettimeofday(). Since actual
# implementations can differ, just make sure we have the most common
# one.
AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
[ac_cv_func_gettimeofday=no
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
int main ()
{
struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
exit (gettimeofday (&t, 0) != 0
|| t.tv_sec < 0 || t.tv_usec < 0);
}]])],
[ac_cv_func_gettimeofday=yes],
[ac_cv_func_gettimeofday=no],
[ac_cv_func_gettimeofday="no (cross-compiling)"])])
if test "$ac_cv_func_gettimeofday" = yes; then
AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
[Define to 1 if you have a standard gettimeofday function])
fi
AC_CHECK_FUNCS( strdup strndup mkstemp mktemp fdopen fileno \
bsd_signal dup2 getcwd realpath sigsetmask sigaction \
getgroups seteuid setegid setlinebuf setreuid setregid \
getrlimit setrlimit setvbuf pipe strerror strsignal \
lstat readlink atexit)
AC_FUNC_SETVBUF_REVERSED
# Rumor has it that strcasecmp lives in -lresolv on some odd systems.
# It doesn't hurt much to use our own if we can't find it so I don't
# make the effort here.
AC_CHECK_FUNCS(strcasecmp strcmpi stricmp)
# 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
# doesn't. So, we will.
if test "$ac_cv_header_nlist_h" = yes; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
[[struct nlist nl;
nl.n_name = "string";
return 0;]])],
[make_cv_nlist_struct=yes],
[make_cv_nlist_struct=no])
if test "$make_cv_nlist_struct" = yes; then
AC_DEFINE(NLIST_STRUCT, 1,
[Define to 1 if struct nlist.n_name is a pointer rather than an array.])
fi
fi
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,,,[[#include <sys/types.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
conflicts with WEXITSTATUS et al, we don't want to use it at all. */
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],
[make_cv_union_wait=no])])
if test "$make_cv_union_wait" = yes; then
AC_DEFINE(HAVE_UNION_WAIT, 1,
[Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
fi
AC_MSG_RESULT($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 to 1 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],
[assume file systems are case insensitive]),
[case $enableval in
yes) AC_DEFINE(HAVE_CASE_INSENSITIVE_FS) ;;
esac])
# See if we can handle the job server feature, and if the user wants it.
AC_ARG_ENABLE(job-server,
AC_HELP_STRING([--disable-job-server],
[disallow recursive make communication during -jN]),
[make_cv_job_server="$enableval" user_job_server="$enableval"],
[make_cv_job_server="yes"])
has_wait_nohang=yes
case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
no/no) has_wait_nohang=no ;;
esac
AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
[[return SA_RESTART;]])],
[make_cv_sa_restart=yes],
[make_cv_sa_restart=no])])
if test "$make_cv_sa_restart" != no; then
AC_DEFINE(HAVE_SA_RESTART, 1,
[Define to 1 if <signal.h> defines the SA_RESTART constant.])
fi
# 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 to 1 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 to 1 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 to 1 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)
make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
make_cv_sys_gnu_glob=no])])
if test "$make_cv_sys_gnu_glob" = no; then
GLOBINC='-I$(srcdir)/glob'
GLOBLIB=glob/libglob.a
fi
AC_SUBST(GLOBINC)
AC_SUBST(GLOBLIB)
# Tell automake about this, so it can build the right .c files.
AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)
# Let the makefile know what our build host is
AC_DEFINE_UNQUOTED(MAKE_HOST,"$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
AC_DEFINE_UNQUOTED(PATH_SEPARATOR_CHAR,'$PATH_SEPARATOR',[Define to the character that separates directories in PATH.])
# Include the Maintainer's Makefile section, if it's here.
MAINT_MAKEFILE=/dev/null
if test -r "$srcdir/maintMakefile"; then
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:
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