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configure.in
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configure.in
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dnl Process this file with autoconf 2.0 or later to make a configure script.
# Set VERSION so we only need to edit in one place (i.e., here)
m4_define(PYTHON_VERSION, 2.4)
AC_REVISION($Revision$)
AC_PREREQ(2.53)
AC_INIT(python, PYTHON_VERSION)
AC_CONFIG_SRCDIR([Include/object.h])
AC_CONFIG_HEADER(pyconfig.h)
dnl This is for stuff that absolutely must end up in pyconfig.h.
dnl Please use pyport.h instead, if possible.
AH_TOP([
#ifndef Py_PYCONFIG_H
#define Py_PYCONFIG_H
])
AH_BOTTOM([
/* Define the macros needed if on a UnixWare 7.x system. */
#if defined(__USLC__) && defined(__SCO_VERSION__)
#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
#endif
#endif /*Py_PYCONFIG_H*/
])
# We don't use PACKAGE_ variables, and they cause conflicts
# with other autoconf-based packages that include Python.h
grep -v 'define PACKAGE_' <confdefs.h >confdefs.h.new
rm confdefs.h
mv confdefs.h.new confdefs.h
AC_SUBST(VERSION)
VERSION=PYTHON_VERSION
AC_SUBST(SOVERSION)
SOVERSION=1.0
# The later defininition of _XOPEN_SOURCE disables certain features
# on Linux, so we need _GNU_SOURCE to re-enable them (makedev, tm_zone).
AC_DEFINE(_GNU_SOURCE, 1, [Define on Linux to activate all library features])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
# them.
AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
# them.
AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
define_xopen_source=yes
# Arguments passed to configure.
AC_SUBST(CONFIG_ARGS)
CONFIG_ARGS="$ac_configure_args"
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
AC_ARG_ENABLE(framework,
AC_HELP_STRING(--enable-framework@<:@=INSTALLDIR@:>@, Build (MacOSX|Darwin) framework),
[
case $enableval in
yes)
enableval=/Library/Frameworks
esac
case $enableval in
no)
PYTHONFRAMEWORK=
PYTHONFRAMEWORKDIR=no-framework
PYTHONFRAMEWORKPREFIX=
PYTHONFRAMEWORKINSTALLDIR=
enable_framework=
;;
*)
PYTHONFRAMEWORK=Python
PYTHONFRAMEWORKDIR=Python.framework
PYTHONFRAMEWORKPREFIX=$enableval
PYTHONFRAMEWORKINSTALLDIR=$PYTHONFRAMEWORKPREFIX/$PYTHONFRAMEWORKDIR
prefix=$PYTHONFRAMEWORKINSTALLDIR/Versions/$VERSION
esac
],[
PYTHONFRAMEWORK=
PYTHONFRAMEWORKDIR=no-framework
PYTHONFRAMEWORKPREFIX=
PYTHONFRAMEWORKINSTALLDIR=
enable_framework=
])
AC_SUBST(PYTHONFRAMEWORK)
AC_SUBST(PYTHONFRAMEWORKDIR)
AC_SUBST(PYTHONFRAMEWORKPREFIX)
AC_SUBST(PYTHONFRAMEWORKINSTALLDIR)
##AC_ARG_WITH(dyld,
## AC_HELP_STRING(--with-dyld,
## Use (OpenStep|Rhapsody) dynamic linker))
##
# Set name for machine-dependent library files
AC_SUBST(MACHDEP)
AC_MSG_CHECKING(MACHDEP)
if test -z "$MACHDEP"
then
ac_sys_system=`uname -s`
if test "$ac_sys_system" = "AIX" -o "$ac_sys_system" = "Monterey64" \
-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then
ac_sys_release=`uname -v`
else
ac_sys_release=`uname -r`
fi
ac_md_system=`echo $ac_sys_system |
tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'`
ac_md_release=`echo $ac_sys_release |
tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'`
MACHDEP="$ac_md_system$ac_md_release"
case $MACHDEP in
cygwin*) MACHDEP="cygwin";;
darwin*) MACHDEP="darwin";;
atheos*) MACHDEP="atheos";;
irix646) MACHDEP="irix6";;
'') MACHDEP="unknown";;
esac
fi
# Some systems cannot stand _XOPEN_SOURCE being defined at all; they
# disable features if it is defined, without any means to access these
# features as extensions. For these systems, we skip the definition of
# _XOPEN_SOURCE. Before adding a system to the list to gain access to
# some feature, make sure there is no alternative way to access this
# feature. Also, when using wildcards, make sure you have verified the
# need for not defining _XOPEN_SOURCE on all systems matching the
# wildcard, and that the wildcard does not include future systems
# (which may remove their limitations).
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
case $ac_sys_system/$ac_sys_release in
# On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
# even though select is a POSIX function. Reported by J. Ribbens.
# Reconfirmed for OpenBSD 3.3 by Zachary Hamm.
OpenBSD/2.* | OpenBSD/3.@<:@0123@:>@)
define_xopen_source=no;;
# On Solaris 2.6, sys/wait.h is inconsistent in the usage
# of union __?sigval. Reported by Stuart Bishop.
SunOS/5.6)
define_xopen_source=no;;
# On UnixWare 7, u_long is never defined with _XOPEN_SOURCE,
# but used in /usr/include/netinet/tcp.h. Reported by Tim Rice.
OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-3@:>@)
define_xopen_source=no;;
# On OpenServer 5, u_short is never defined with _XOPEN_SOURCE,
# but used in struct sockaddr.sa_family. Reported by Tim Rice.
SCO_SV/3.2)
define_xopen_source=no;;
esac
if test $define_xopen_source = yes
then
AC_DEFINE(_XOPEN_SOURCE, 600,
Define to the level of X/Open that your system supports)
# On Tru64 Unix 4.0F, defining _XOPEN_SOURCE also requires
# definition of _XOPEN_SOURCE_EXTENDED and _POSIX_C_SOURCE, or else
# several APIs are not declared. Since this is also needed in some
# cases for HP-UX, we define it globally.
AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, Define to activate Unix95-and-earlier features)
AC_DEFINE(_POSIX_C_SOURCE, 200112L, Define to activate features from IEEE Stds 1003.1-2001)
fi
#
# SGI compilers allow the specification of the both the ABI and the
# ISA on the command line. Depending on the values of these switches,
# different and often incompatable code will be generated.
#
# The SGI_ABI variable can be used to modify the CC and LDFLAGS and
# thus supply support for various ABI/ISA combinations. The MACHDEP
# variable is also adjusted.
#
AC_SUBST(SGI_ABI)
if test ! -z "$SGI_ABI"
then
CC="cc $SGI_ABI"
LDFLAGS="$SGI_ABI $LDFLAGS"
MACHDEP=`echo "${MACHDEP}${SGI_ABI}" | sed 's/ *//g'`
fi
AC_MSG_RESULT($MACHDEP)
# And add extra plat-mac for darwin
AC_SUBST(EXTRAPLATDIR)
AC_SUBST(EXTRAMACHDEPPATH)
AC_MSG_CHECKING(EXTRAPLATDIR)
if test -z "$EXTRAPLATDIR"
then
case $MACHDEP in
darwin)
EXTRAPLATDIR="\$(PLATMACDIRS)"
EXTRAMACHDEPPATH="\$(PLATMACPATH)"
;;
*)
EXTRAPLATDIR=""
EXTRAMACHDEPPATH=""
;;
esac
fi
AC_MSG_RESULT($EXTRAPLATDIR)
# checks for alternative programs
# compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just
# for debug/optimization stuff. BASECFLAGS is for flags that are required
# just to get things to compile and link. Users are free to override OPT
# when running configure or make. The build should not break if they do.
# BASECFLAGS should generally not be messed with, however.
# XXX shouldn't some/most/all of this code be merged with the stuff later
# on that fiddles with OPT and BASECFLAGS?
AC_MSG_CHECKING(for --without-gcc)
AC_ARG_WITH(gcc,
AC_HELP_STRING(--without-gcc,never use gcc),
[
case $withval in
no) CC=cc
without_gcc=yes;;
yes) CC=gcc
without_gcc=no;;
*) CC=$withval
without_gcc=$withval;;
esac], [
case $ac_sys_system in
AIX*) CC=cc_r
without_gcc=;;
BeOS*)
case $BE_HOST_CPU in
ppc)
CC=mwcc
without_gcc=yes
BASECFLAGS="$BASECFLAGS -export pragma"
OPT="$OPT -O"
LDFLAGS="$LDFLAGS -nodup"
;;
x86)
CC=gcc
without_gcc=no
OPT="$OPT -O"
;;
*)
AC_MSG_ERROR([Unknown BeOS platform "$BE_HOST_CPU"])
;;
esac
AR="\$(srcdir)/Modules/ar_beos"
RANLIB=:
;;
Monterey*)
RANLIB=:
without_gcc=;;
*) without_gcc=no;;
esac])
AC_MSG_RESULT($without_gcc)
AC_SUBST(CXX)
AC_SUBST(MAINOBJ)
MAINOBJ=python.o
AC_MSG_CHECKING(for --with-cxx=<compiler>)
AC_ARG_WITH(cxx,
AC_HELP_STRING(--with-cxx=<compiler>, enable C++ support),
[
check_cxx=no
case $withval in
no) CXX=
with_cxx=no;;
*) CXX=$withval
MAINOBJ=ccpython.o
with_cxx=$withval;;
esac], [
with_cxx=no
check_cxx=yes
])
AC_MSG_RESULT($with_cxx)
if test "$with_cxx" = "yes"
then
AC_MSG_ERROR([must supply a compiler when using --with-cxx])
fi
dnl The following fragment works similar to AC_PROG_CXX.
dnl It does not fail if CXX is not found, and it is not executed if
dnl --without-cxx was given.
dnl Finally, it does not test whether CXX is g++.
dnl Autoconf 2.5x does not have AC_PROG_CXX_WORKS anymore
ifdef([AC_PROG_CXX_WORKS],[],
[AC_DEFUN([AC_PROG_CXX_WORKS],
[AC_LANG_PUSH(C++)dnl
_AC_COMPILER_EXEEXT
AC_LANG_POP()
]
)])
if test "$check_cxx" = "yes"
then
AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
if test "$CXX" = "notfound"
then
CXX=
else
AC_PROG_CXX_WORKS
fi
fi
# If the user switches compilers, we can't believe the cache
if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
then
AC_MSG_ERROR([cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling)])
fi
AC_PROG_CC
# checks for UNIX variants that set C preprocessor variables
AC_AIX
AC_MINIX
# Check for unsupported systems
case $ac_sys_system/$ac_sys_release in
SunOS/4*|DYNIX/*|dgux*/*|IRIX/4*|Linux*/1*)
echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported.
echo See README for details.
exit 1;;
esac
if test "$MINIX" = yes; then
echo This system \(MINIX\) is no longer supported.
echo Read README for details.
exit 1
fi
AC_EXEEXT
AC_MSG_CHECKING(for --with-suffix)
AC_ARG_WITH(suffix,
AC_HELP_STRING(--with-suffix=.exe, set executable suffix),
[
case $withval in
no) EXEEXT=;;
yes) EXEEXT=.exe;;
*) EXEEXT=$withval;;
esac])
AC_MSG_RESULT($EXEEXT)
# Test whether we're running on a non-case-sensitive system, in which
# case we give a warning if no ext is given
AC_SUBST(BUILDEXEEXT)
AC_MSG_CHECKING(for case-insensitive build directory)
if test ! -d CaseSensitiveTestDir; then
mkdir CaseSensitiveTestDir
fi
if test -d casesensitivetestdir
then
AC_MSG_RESULT(yes)
BUILDEXEEXT=.exe
else
AC_MSG_RESULT(no)
BUILDEXEEXT=$EXEEXT
fi
rmdir CaseSensitiveTestDir
case $MACHDEP in
bsdos*)
case $CC in
gcc) CC="$CC -D_HAVE_BSDI";;
esac;;
esac
case $ac_sys_system in
hp*|HP*)
case $CC in
cc|*/cc) CC="$CC -Ae";;
esac;;
Monterey*)
case $CC in
cc) CC="$CC -Wl,-Bexport";;
esac;;
SunOS*)
# Some functions have a prototype only with that define, e.g. confstr
AC_DEFINE(__EXTENSIONS__, 1, [Defined on Solaris to see additional function prototypes.])
;;
esac
AC_SUBST(LIBRARY)
AC_MSG_CHECKING(LIBRARY)
if test -z "$LIBRARY"
then
LIBRARY='libpython$(VERSION).a'
fi
AC_MSG_RESULT($LIBRARY)
# LDLIBRARY is the name of the library to link against (as opposed to the
# name of the library into which to insert object files). BLDLIBRARY is also
# the library to link against, usually. On Mac OS X frameworks, BLDLIBRARY
# is blank as the main program is not linked directly against LDLIBRARY.
# LDLIBRARYDIR is the path to LDLIBRARY, which is made in a subdirectory. On
# systems without shared libraries, LDLIBRARY is the same as LIBRARY
# (defined in the Makefiles). On Cygwin LDLIBRARY is the import library,
# DLLLIBRARY is the shared (i.e., DLL) library.
#
# RUNSHARED is used to run shared python without installed libraries
#
# INSTSONAME is the name of the shared library that will be use to install
# on the system - some systems like version suffix, others don't
AC_SUBST(LDLIBRARY)
AC_SUBST(DLLLIBRARY)
AC_SUBST(BLDLIBRARY)
AC_SUBST(LDLIBRARYDIR)
AC_SUBST(INSTSONAME)
AC_SUBST(RUNSHARED)
LDLIBRARY="$LIBRARY"
BLDLIBRARY='$(LDLIBRARY)'
INSTSONAME='$(LDLIBRARY)'
DLLLIBRARY=''
LDLIBRARYDIR=''
RUNSHARED=''
# LINKCC is the command that links the python executable -- default is $(CC).
# If CXX is set, and if it is needed to link a main function that was
# compiled with CXX, LINKCC is CXX instead. Always using CXX is undesirable:
# python might then depend on the C++ runtime
# This is altered for AIX in order to build the export list before
# linking.
AC_SUBST(LINKCC)
AC_MSG_CHECKING(LINKCC)
if test -z "$LINKCC"
then
if test -z "$CXX"; then
LINKCC="\$(PURIFY) \$(CC)"
else
echo 'void foo();int main(){foo();}void foo(){}' > conftest.$ac_ext
$CXX -c conftest.$ac_ext 2>&5
if $CC -o conftest$ac_exeext conftest.$ac_objext 2>&5 \
&& test -s conftest$ac_exeext && ./conftest$ac_exeext
then
LINKCC="\$(PURIFY) \$(CC)"
else
LINKCC="\$(PURIFY) \$(CXX)"
fi
rm -fr conftest*
fi
case $ac_sys_system in
AIX*)
exp_extra="\"\""
if test $ac_sys_release -ge 5 -o \
$ac_sys_release -eq 4 -a `uname -r` -ge 2 ; then
exp_extra="."
fi
LINKCC="\$(srcdir)/Modules/makexp_aix Modules/python.exp $exp_extra \$(LIBRARY); $LINKCC";;
dgux*)
LINKCC="LD_RUN_PATH=$libdir $LINKCC";;
Monterey64*)
LINKCC="$LINKCC -L/usr/lib/ia64l64";;
esac
fi
AC_MSG_RESULT($LINKCC)
AC_MSG_CHECKING(for --enable-shared)
AC_ARG_ENABLE(shared,
AC_HELP_STRING(--enable-shared, disable/enable building shared python library))
if test -z "$enable_shared"
then
case $ac_sys_system in
CYGWIN* | atheos*)
enable_shared="yes";;
*)
enable_shared="no";;
esac
fi
AC_MSG_RESULT($enable_shared)
AC_MSG_CHECKING(LDLIBRARY)
# MacOSX framework builds need more magic. LDLIBRARY is the dynamic
# library that we build, but we do not want to link against it (we
# will find it with a -framework option). For this reason there is an
# extra variable BLDLIBRARY against which Python and the extension
# modules are linked, BLDLIBRARY. This is normally the same as
# LDLIBRARY, but empty for MacOSX framework builds.
if test "$enable_framework"
then
LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
RUNSHARED=DYLD_FRAMEWORK_PATH="`pwd`:$DYLD_FRAMEWORK_PATH"
BLDLIBRARY=''
else
BLDLIBRARY='$(LDLIBRARY)'
fi
# Other platforms follow
if test $enable_shared = "yes"; then
AC_DEFINE(Py_ENABLE_SHARED, 1, [Defined if Python is built as a shared library.])
case $ac_sys_system in
BeOS*)
LDLIBRARY='libpython$(VERSION).so'
;;
CYGWIN*)
LDLIBRARY='libpython$(VERSION).dll.a'
DLLLIBRARY='libpython$(VERSION).dll'
;;
SunOS*)
LDLIBRARY='libpython$(VERSION).so'
BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
;;
Linux*|GNU*|NetBSD*)
LDLIBRARY='libpython$(VERSION).so'
BLDLIBRARY='-L. -lpython$(VERSION)'
RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
INSTSONAME="$LDLIBRARY".$SOVERSION
;;
hp*|HP*)
LDLIBRARY='libpython$(VERSION).sl'
BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
;;
OSF*)
LDLIBRARY='libpython$(VERSION).so'
BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
;;
atheos*)
LDLIBRARY='libpython$(VERSION).so'
BLDLIBRARY='-L. -lpython$(VERSION)'
RUNSHARED=DLL_PATH=`pwd`:${DLL_PATH:-/atheos/sys/libs:/atheos/autolnk/lib}
;;
esac
# DG/UX requires some fancy ld contortions to produce a .so from an .a
case $MACHDEP in
dguxR4)
LDLIBRARY='libpython$(VERSION).so'
BASECFLAGS="$BASECFLAGS -pic"
;;
esac
fi
AC_MSG_RESULT($LDLIBRARY)
AC_PROG_RANLIB
AC_SUBST(AR)
AC_CHECK_PROGS(AR, ar aal, ar)
case $MACHDEP in
bsdos*|hp*|HP*)
# install -d does not work on BSDI or HP-UX
if test -z "$INSTALL"
then
INSTALL="${srcdir}/install-sh -c"
fi
esac
AC_PROG_INSTALL
# Not every filesystem supports hard links
AC_SUBST(LN)
if test -z "$LN" ; then
case $ac_sys_system in
BeOS*) LN="ln -s";;
CYGWIN*) LN="ln -s";;
atheos*) LN="ln -s";;
*) LN=ln;;
esac
fi
# Check for --with-pydebug
AC_MSG_CHECKING(for --with-pydebug)
AC_ARG_WITH(pydebug,
AC_HELP_STRING(--with-pydebug, build with Py_DEBUG defined),
[
if test "$withval" != no
then
AC_DEFINE(Py_DEBUG, 1,
[Define if you want to build an interpreter with many run-time checks.])
AC_MSG_RESULT(yes);
Py_DEBUG='true'
else AC_MSG_RESULT(no); Py_DEBUG='false'
fi],
[AC_MSG_RESULT(no)])
# XXX Shouldn't the code above that fiddles with BASECFLAGS and OPT be
# merged with this chunk of code?
# Optimizer/debugger flags
# ------------------------
# (The following bit of code is complicated enough - please keep things
# indented properly. Just pretend you're editing Python code. ;-)
# There are two parallel sets of case statements below, one that checks to
# see if OPT was set and one that does BASECFLAGS setting based upon
# compiler and platform. BASECFLAGS tweaks need to be made even if the
# user set OPT.
# tweak OPT based on compiler and platform, only if the user didn't set
# it on the command line
AC_SUBST(OPT)
if test -z "$OPT"
then
case $GCC in
yes)
case $ac_cv_prog_cc_g in
yes)
if test "$Py_DEBUG" = 'true' ; then
# Optimization messes up debuggers, so turn it off for
# debug builds.
OPT="-g -Wall -Wstrict-prototypes"
else
OPT="-g -O3 -Wall -Wstrict-prototypes"
fi
;;
*)
OPT="-O3 -Wall -Wstrict-prototypes"
;;
esac
case $ac_sys_system in
SCO_SV*) OPT="$OPT -m486 -DSCO5"
;;
esac
;;
*)
OPT="-O"
;;
esac
# The current (beta) Monterey compiler dies with optimizations
# XXX what is Monterey? Does it still die w/ -O? Can we get rid of this?
case $ac_sys_system in
Monterey*)
OPT=""
;;
esac
fi
AC_SUBST(BASECFLAGS)
# tweak BASECFLAGS based on compiler and platform
case $GCC in
yes)
# Python violates C99 rules, by casting between incompatible
# pointer types. GCC may generate bad code as a result of that,
# so use -fno-strict-aliasing if supported.
AC_MSG_CHECKING(whether $CC accepts -fno-strict-aliasing)
ac_save_cc="$CC"
CC="$CC -fno-strict-aliasing"
AC_TRY_RUN([int main() { return 0; }],
ac_cv_no_strict_aliasing_ok=yes,
ac_cv_no_strict_aliasing_ok=no,
ac_cv_no_strict_aliasing_ok=no)
CC="$ac_save_cc"
AC_MSG_RESULT($ac_cv_no_strict_aliasing_ok)
if test $ac_cv_no_strict_aliasing_ok = yes
then
BASECFLAGS="$BASECFLAGS -fno-strict-aliasing"
fi
case $ac_sys_system in
SCO_SV*)
BASECFLAGS="$BASECFLAGS -m486 -DSCO5"
;;
# is there any other compiler on Darwin besides gcc?
Darwin*)
BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
;;
esac
;;
*)
case $ac_sys_system in
OpenUNIX*|UnixWare*)
BASECFLAGS="$BASECFLAGS -K pentium,host,inline,loop_unroll,alloca "
;;
OSF*)
BASECFLAGS="$BASECFLAGS -ieee -std"
;;
SCO_SV*)
BASECFLAGS="$BASECFLAGS -belf -Ki486 -DSCO5"
;;
esac
;;
esac
if test "$Py_DEBUG" = 'true'; then
:
else
OPT="-DNDEBUG $OPT"
fi
if test "$ac_arch_flags"
then
BASECFLAGS="$BASECFLAGS $ac_arch_flags"
fi
AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)
AC_CACHE_VAL(ac_cv_opt_olimit_ok,
[ac_save_cc="$CC"
CC="$CC -OPT:Olimit=0"
AC_TRY_RUN([int main() { return 0; }],
ac_cv_opt_olimit_ok=yes,
ac_cv_opt_olimit_ok=no,
ac_cv_opt_olimit_ok=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_opt_olimit_ok)
if test $ac_cv_opt_olimit_ok = yes; then
case $ac_sys_system in
# XXX is this branch needed? On MacOSX 10.2.2 the result of the
# olimit_ok test is "no". Is it "yes" in some other Darwin-esque
# environment?
Darwin*)
;;
*)
BASECFLAGS="$BASECFLAGS -OPT:Olimit=0"
;;
esac
else
AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)
AC_CACHE_VAL(ac_cv_olimit_ok,
[ac_save_cc="$CC"
CC="$CC -Olimit 1500"
AC_TRY_RUN([int main() { return 0; }],
ac_cv_olimit_ok=yes,
ac_cv_olimit_ok=no,
ac_cv_olimit_ok=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_olimit_ok)
if test $ac_cv_olimit_ok = yes; then
BASECFLAGS="$BASECFLAGS -Olimit 1500"
fi
fi
# On some compilers, pthreads are available without further options
# (e.g. MacOS X). On some of these systems, the compiler will not
# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
# So we have to see first whether pthreads are available without
# options before we can check whether -Kpthread improves anything.
AC_MSG_CHECKING(whether pthreads are available without options)
AC_CACHE_VAL(ac_cv_pthread_is_default,
[AC_TRY_RUN([
#include <pthread.h>
void* routine(void* p){return NULL;}
int main(){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
(void)pthread_detach(p);
return 0;
}
],
[
ac_cv_pthread_is_default=yes
ac_cv_kthread=no
ac_cv_pthread=no
],
ac_cv_pthread_is_default=no,
ac_cv_pthread_is_default=no)
])
AC_MSG_RESULT($ac_cv_pthread_is_default)
if test $ac_cv_pthread_is_default = yes
then
ac_cv_kpthread=no
else
# -Kpthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -Kpthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -Kpthread)
AC_CACHE_VAL(ac_cv_kpthread,
[ac_save_cc="$CC"
CC="$CC -Kpthread"
AC_TRY_RUN([
#include <pthread.h>
void* routine(void* p){return NULL;}
int main(){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
(void)pthread_detach(p);
return 0;
}
],
ac_cv_kpthread=yes,
ac_cv_kpthread=no,
ac_cv_kpthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_kpthread)
fi
if test $ac_cv_kpthread = no -a $ac_cv_pthread_is_default = no
then
# -Kthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -Kthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -Kthread)
AC_CACHE_VAL(ac_cv_kthread,
[ac_save_cc="$CC"
CC="$CC -Kthread"
AC_TRY_RUN([
#include <pthread.h>
void* routine(void* p){return NULL;}
int main(){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
(void)pthread_detach(p);
return 0;
}
],
ac_cv_kthread=yes,
ac_cv_kthread=no,
ac_cv_kthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_kthread)
fi
if test $ac_cv_kthread = no -a $ac_cv_pthread_is_default = no
then
# -pthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -pthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -pthread)
AC_CACHE_VAL(ac_cv_thread,
[ac_save_cc="$CC"
CC="$CC -pthread"
AC_TRY_RUN([
#include <pthread.h>
void* routine(void* p){return NULL;}
int main(){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
(void)pthread_detach(p);
return 0;
}
],
ac_cv_pthread=yes,
ac_cv_pthread=no,
ac_cv_pthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_pthread)
fi
# If we have set a CC compiler flag for thread support then
# check if it works for CXX, too.
ac_cv_cxx_thread=no
if test ! -z "$CXX"
then
AC_MSG_CHECKING(whether $CXX also accepts flags for thread support)
ac_save_cxx="$CXX"
if test "$ac_cv_kpthread" = "yes"
then
CXX="$CXX -Kpthread"
ac_cv_cxx_thread=yes
elif test "$ac_cv_kthread" = "yes"
then
CXX="$CXX -Kthread"
ac_cv_cxx_thread=yes
elif test "$ac_cv_pthread" = "yes"
then
CXX="$CXX -pthread"
ac_cv_cxx_thread=yes
fi
if test $ac_cv_cxx_thread = yes
then
echo 'void foo();int main(){foo();}void foo(){}' > conftest.$ac_ext
$CXX -c conftest.$ac_ext 2>&5
if $CXX -o conftest$ac_exeext conftest.$ac_objext 2>&5 \
&& test -s conftest$ac_exeext && ./conftest$ac_exeext
then
ac_cv_cxx_thread=yes
else
ac_cv_cxx_thread=no
CXX="$ac_save_cxx"
fi
rm -fr conftest*
else
CXX="$ac_save_cxx"
fi
fi
AC_MSG_RESULT($ac_cv_cxx_thread)
dnl # check for ANSI or K&R ("traditional") preprocessor
dnl AC_MSG_CHECKING(for C preprocessor type)
dnl AC_TRY_COMPILE([
dnl #define spam(name, doc) {#name, &name, #name "() -- " doc}
dnl int foo;
dnl struct {char *name; int *addr; char *doc;} desc = spam(foo, "something");
dnl ], [;], cpp_type=ansi, AC_DEFINE(HAVE_OLD_CPP) cpp_type=traditional)
dnl AC_MSG_RESULT($cpp_type)
# checks for header files
AC_HEADER_STDC
AC_CHECK_HEADERS(dlfcn.h fcntl.h grp.h limits.h langinfo.h \
libintl.h locale.h ncurses.h poll.h pthread.h \
signal.h stdarg.h stddef.h stdlib.h stropts.h termios.h thread.h \
unistd.h utime.h \
sys/audioio.h sys/bsdtty.h sys/file.h sys/lock.h sys/mkdev.h sys/modem.h \
sys/param.h sys/poll.h sys/select.h sys/socket.h sys/time.h sys/times.h \
sys/un.h sys/utsname.h sys/wait.h pty.h term.h libutil.h \
sys/resource.h netpacket/packet.h sysexits.h)
AC_HEADER_DIRENT
AC_HEADER_MAJOR
# checks for typedefs
was_it_defined=no
AC_MSG_CHECKING(for clock_t in time.h)
AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, [
AC_DEFINE(clock_t, long, [Define to 'long' if <time.h> doesn't define.])
])
AC_MSG_RESULT($was_it_defined)
# Check whether using makedev requires defining _OSF_SOURCE
AC_MSG_CHECKING(for makedev)
AC_TRY_LINK([#include <sys/types.h> ],
[ makedev(0, 0) ],
ac_cv_has_makedev=yes,
ac_cv_has_makedev=no)
if test "$ac_cv_has_makedev" = "no"; then
# we didn't link, try if _OSF_SOURCE will allow us to link
AC_TRY_LINK([
#define _OSF_SOURCE 1
#include <sys/types.h>
],
[ makedev(0, 0) ],
ac_cv_has_makedev=yes,
ac_cv_has_makedev=no)
if test "$ac_cv_has_makedev" = "yes"; then
AC_DEFINE(_OSF_SOURCE, 1, [Define _OSF_SOURCE to get the makedev macro.])
fi
fi
AC_MSG_RESULT($ac_cv_has_makedev)
if test "$ac_cv_has_makedev" = "yes"; then
AC_DEFINE(HAVE_MAKEDEV, 1, [Define this if you have the makedev macro.])
fi
# Enabling LFS on Solaris (2.6 to 9) with gcc 2.95 triggers a bug in
# the system headers: If _XOPEN_SOURCE and _LARGEFILE_SOURCE are
# defined, but the compiler does not support pragma redefine_extname,
# and _LARGEFILE64_SOURCE is not defined, the headers refer to 64-bit
# structures (such as rlimit64) without declaring them. As a
# work-around, disable LFS on such configurations
use_lfs=yes
AC_MSG_CHECKING(Solaris LFS bug)
AC_TRY_COMPILE([
#define _LARGEFILE_SOURCE 1
#define _FILE_OFFSET_BITS 64
#include <sys/resource.h>
],struct rlimit foo;,sol_lfs_bug=no,sol_lfs_bug=yes)
AC_MSG_RESULT($sol_lfs_bug)
if test "$sol_lfs_bug" = "yes"; then
use_lfs=no
fi
if test "$use_lfs" = "yes"; then
# Two defines needed to enable largefile support on various platforms
# These may affect some typedefs
AC_DEFINE(_LARGEFILE_SOURCE, 1,
[This must be defined on some systems to enable large file support.])
AC_DEFINE(_FILE_OFFSET_BITS, 64,
[This must be set to 64 on some systems to enable large file support.])
fi
# Add some code to confdefs.h so that the test for off_t works on SCO
cat >> confdefs.h <<\EOF
#if defined(SCO_DS)
#undef _OFF_T
#endif
EOF
# Type availability checks
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
AC_TYPE_UID_T
# Sizes of various common basic types
AC_CHECK_SIZEOF(int, 4)