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configure.ac
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configure.ac
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dnl ************************************************************
dnl * Please run autoreconf -ivf -Werror to test your changes! *
dnl ************************************************************
dnl
dnl Python's configure script requires autoconf 2.71, autoconf-archive,
dnl aclocal 1.16, and pkg-config.
dnl
dnl It is recommended to use the Tools/build/regen-configure.sh shell script
dnl to regenerate the configure script.
dnl
# Set VERSION so we only need to edit in one place (i.e., here)
m4_define([PYTHON_VERSION], [3.13])
AC_PREREQ([2.71])
AC_INIT([python],[PYTHON_VERSION],[https://github.com/python/cpython/issues/])
m4_ifdef(
[AX_C_FLOAT_WORDS_BIGENDIAN],
[],
[AC_MSG_ERROR([Please install autoconf-archive package and re-run autoreconf])]
)dnl
m4_ifdef(
[PKG_PROG_PKG_CONFIG],
[],
[AC_MSG_ERROR([Please install pkgconf's m4 macro package and re-run autoreconf])]
)dnl
dnl Helpers for saving and restoring environment variables:
dnl - _SAVE_VAR([VAR]) Helper for SAVE_ENV; stores VAR as save_VAR
dnl - _RESTORE_VAR([VAR]) Helper for RESTORE_ENV; restores VAR from save_VAR
dnl - SAVE_ENV Saves CFLAGS, LDFLAGS, LIBS, and CPPFLAGS
dnl - RESTORE_ENV Restores CFLAGS, LDFLAGS, LIBS, and CPPFLAGS
dnl - WITH_SAVE_ENV([SCRIPT]) Runs SCRIPT wrapped with SAVE_ENV/RESTORE_ENV
AC_DEFUN([_SAVE_VAR], [AS_VAR_COPY([save_][$1], [$1])])dnl
AC_DEFUN([_RESTORE_VAR], [AS_VAR_COPY([$1], [save_][$1])])dnl
AC_DEFUN([SAVE_ENV],
[_SAVE_VAR([CFLAGS])]
[_SAVE_VAR([CPPFLAGS])]
[_SAVE_VAR([LDFLAGS])]
[_SAVE_VAR([LIBS])]
)dnl
AC_DEFUN([RESTORE_ENV],
[_RESTORE_VAR([CFLAGS])]
[_RESTORE_VAR([CPPFLAGS])]
[_RESTORE_VAR([LDFLAGS])]
[_RESTORE_VAR([LIBS])]
)dnl
AC_DEFUN([WITH_SAVE_ENV],
[SAVE_ENV]
[$1]
[RESTORE_ENV]
)dnl
dnl PY_CHECK_FUNC(FUNCTION, [INCLUDES], [AC_DEFINE-VAR])
AC_DEFUN([PY_CHECK_FUNC],
[ AS_VAR_PUSHDEF([py_var], [ac_cv_func_$1])
AS_VAR_PUSHDEF([py_define], m4_ifblank([$3], [[HAVE_]m4_toupper($1)], [$3]))
AC_CACHE_CHECK(
[for $1],
[py_var],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([$2], [void *x=$1])],
[AS_VAR_SET([py_var], [yes])],
[AS_VAR_SET([py_var], [no])])]
)
AS_VAR_IF(
[py_var],
[yes],
[AC_DEFINE([py_define], [1], [Define if you have the '$1' function.])])
AS_VAR_POPDEF([py_var])
AS_VAR_POPDEF([py_define])
])
dnl PY_CHECK_LIB(LIBRARY, FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], [OTHER-LIBRARIES])
dnl Like AC_CHECK_LIB() but does not modify LIBS
AC_DEFUN([PY_CHECK_LIB],
[AS_VAR_COPY([py_check_lib_save_LIBS], [LIBS])]
[AC_CHECK_LIB([$1], [$2], [$3], [$4], [$5])]
[AS_VAR_COPY([LIBS], [py_check_lib_save_LIBS])]
)
dnl PY_CHECK_EMSCRIPTEN_PORT(PKG_VAR, [EMPORT_ARGS])
dnl Use Emscripten port unless user passes ${PKG_VAR}_CFLAGS
dnl or ${PKG_VAR}_LIBS to configure.
AC_DEFUN([PY_CHECK_EMSCRIPTEN_PORT], [
AS_VAR_PUSHDEF([py_cflags], [$1_CFLAGS])
AS_VAR_PUSHDEF([py_libs], [$1_LIBS])
AS_IF([test "$ac_sys_system" = "Emscripten" -a -z "$py_cflags" -a -z "$py_libs"], [
py_cflags="$2"
py_libs="$2"
])
AS_VAR_POPDEF([py_cflags])
AS_VAR_POPDEF([py_libs])
])
AC_SUBST([BASECPPFLAGS])
if test "$srcdir" != . -a "$srcdir" != "$(pwd)"; then
# If we're building out-of-tree, we need to make sure the following
# resources get picked up before their $srcdir counterparts.
# Objects/ -> typeslots.inc
# Include/ -> Python.h
# (A side effect of this is that these resources will automatically be
# regenerated when building out-of-tree, regardless of whether or not
# the $srcdir counterpart is up-to-date. This is an acceptable trade
# off.)
BASECPPFLAGS="-IObjects -IInclude -IPython"
else
BASECPPFLAGS=""
fi
AC_SUBST([GITVERSION])
AC_SUBST([GITTAG])
AC_SUBST([GITBRANCH])
if test -e $srcdir/.git
then
AC_CHECK_PROG([HAS_GIT], [git], [found], [not-found])
else
HAS_GIT=no-repository
fi
if test $HAS_GIT = found
then
GITVERSION="git --git-dir \$(srcdir)/.git rev-parse --short HEAD"
GITTAG="git --git-dir \$(srcdir)/.git describe --all --always --dirty"
GITBRANCH="git --git-dir \$(srcdir)/.git name-rev --name-only HEAD"
else
GITVERSION=""
GITTAG=""
GITBRANCH=""
fi
AC_CONFIG_SRCDIR([Include/object.h])
AC_CONFIG_HEADERS([pyconfig.h])
AC_CANONICAL_HOST
AC_SUBST([build])
AC_SUBST([host])
AS_VAR_IF([cross_compiling], [maybe],
[AC_MSG_ERROR([Cross compiling required --host=HOST-TUPLE and --build=ARCH])]
)
# pybuilddir.txt will be created by --generate-posix-vars in the Makefile
rm -f pybuilddir.txt
AC_ARG_WITH([build-python],
[AS_HELP_STRING([--with-build-python=python]PYTHON_VERSION,
[path to build python binary for cross compiling (default: _bootstrap_python or python]PYTHON_VERSION[)])],
[
AC_MSG_CHECKING([for --with-build-python])
AS_VAR_IF([with_build_python], [yes], [with_build_python=python$PACKAGE_VERSION])
AS_VAR_IF([with_build_python], [no], [AC_MSG_ERROR([invalid --with-build-python option: expected path or "yes", not "no"])])
if ! $(command -v "$with_build_python" >/dev/null 2>&1); then
AC_MSG_ERROR([invalid or missing build python binary "$with_build_python"])
fi
build_python_ver=$($with_build_python -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')")
if test "$build_python_ver" != "$PACKAGE_VERSION"; then
AC_MSG_ERROR(["$with_build_python" has incompatible version $build_python_ver (expected: $PACKAGE_VERSION)])
fi
dnl Build Python interpreter is used for regeneration and freezing.
ac_cv_prog_PYTHON_FOR_REGEN=$with_build_python
PYTHON_FOR_FREEZE="$with_build_python"
PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) '$with_build_python
AC_MSG_RESULT([$with_build_python])
], [
AS_VAR_IF([cross_compiling], [yes],
[AC_MSG_ERROR([Cross compiling requires --with-build-python])]
)
PYTHON_FOR_BUILD='./$(BUILDPYTHON) -E'
PYTHON_FOR_FREEZE="./_bootstrap_python"
]
)
AC_SUBST([PYTHON_FOR_BUILD])
AC_MSG_CHECKING([for Python interpreter freezing])
AC_MSG_RESULT([$PYTHON_FOR_FREEZE])
AC_SUBST([PYTHON_FOR_FREEZE])
AS_VAR_IF([cross_compiling], [yes],
[
dnl external build Python, freezing depends on Programs/_freeze_module.py
FREEZE_MODULE_BOOTSTRAP='$(PYTHON_FOR_FREEZE) $(srcdir)/Programs/_freeze_module.py'
FREEZE_MODULE_BOOTSTRAP_DEPS='$(srcdir)/Programs/_freeze_module.py'
FREEZE_MODULE='$(FREEZE_MODULE_BOOTSTRAP)'
FREEZE_MODULE_DEPS='$(FREEZE_MODULE_BOOTSTRAP_DEPS)'
PYTHON_FOR_BUILD_DEPS=''
],
[
dnl internal build tools also depend on Programs/_freeze_module and _bootstrap_python.
FREEZE_MODULE_BOOTSTRAP='./Programs/_freeze_module'
FREEZE_MODULE_BOOTSTRAP_DEPS="Programs/_freeze_module"
FREEZE_MODULE='$(PYTHON_FOR_FREEZE) $(srcdir)/Programs/_freeze_module.py'
FREEZE_MODULE_DEPS="_bootstrap_python \$(srcdir)/Programs/_freeze_module.py"
PYTHON_FOR_BUILD_DEPS='$(BUILDPYTHON)'
]
)
AC_SUBST([FREEZE_MODULE_BOOTSTRAP])
AC_SUBST([FREEZE_MODULE_BOOTSTRAP_DEPS])
AC_SUBST([FREEZE_MODULE])
AC_SUBST([FREEZE_MODULE_DEPS])
AC_SUBST([PYTHON_FOR_BUILD_DEPS])
AC_CHECK_PROGS([PYTHON_FOR_REGEN],
[python$PACKAGE_VERSION python3.13 python3.12 python3.11 python3.10 python3 python],
[python3])
AC_SUBST([PYTHON_FOR_REGEN])
AC_MSG_CHECKING([Python for regen version])
if command -v "$PYTHON_FOR_REGEN" >/dev/null 2>&1; then
AC_MSG_RESULT([$($PYTHON_FOR_REGEN -V 2>/dev/null)])
else
AC_MSG_RESULT([missing])
fi
dnl Ensure that if prefix is specified, it does not end in a slash. If
dnl it does, we get path names containing '//' which is both ugly and
dnl can cause trouble.
dnl Last slash shouldn't be stripped if prefix=/
if test "$prefix" != "/"; then
prefix=`echo "$prefix" | sed -e 's/\/$//g'`
fi
dnl This is for stuff that absolutely must end up in pyconfig.h.
dnl Please use pyport.h instead, if possible.
AH_TOP([
#ifndef Py_PYCONFIG_H
#define Py_PYCONFIG_H
])
AH_BOTTOM([
/* Define the macros needed if on a UnixWare 7.x system. */
#if defined(__USLC__) && defined(__SCO_VERSION__)
#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
#endif
#endif /*Py_PYCONFIG_H*/
])
# We don't use PACKAGE_ variables, and they cause conflicts
# with other autoconf-based packages that include Python.h
grep -v 'define PACKAGE_' <confdefs.h >confdefs.h.new
rm confdefs.h
mv confdefs.h.new confdefs.h
AC_SUBST([VERSION])
VERSION=PYTHON_VERSION
# Version number of Python's own shared library file.
AC_SUBST([SOVERSION])
SOVERSION=1.0
# The later definition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
# them.
AC_DEFINE([_NETBSD_SOURCE], [1],
[Define on NetBSD to activate all library features])
# The later definition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
# them.
AC_DEFINE([__BSD_VISIBLE], [1],
[Define on FreeBSD to activate all library features])
# The later definition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on Mac OS X, so we need _DARWIN_C_SOURCE to re-enable
# them.
AC_DEFINE([_DARWIN_C_SOURCE], [1],
[Define on Darwin to activate all library features])
define_xopen_source=yes
# Arguments passed to configure.
AC_SUBST([CONFIG_ARGS])
CONFIG_ARGS="$ac_configure_args"
dnl Allow users to disable pkg-config or require pkg-config
AC_ARG_WITH([pkg-config],
[AS_HELP_STRING([[--with-pkg-config=[yes|no|check]]],
[use pkg-config to detect build options (default is check)])],
[],
[with_pkg_config=check]
)
AS_CASE([$with_pkg_config],
[yes|check], [
if test -z "$PKG_CONFIG"; then
dnl invalidate stale config.cache values
AS_UNSET([PKG_CONFIG])
AS_UNSET([ac_cv_path_ac_pt_PKG_CONFIG])
AS_UNSET([ac_cv_prog_ac_ct_PKG_CONFIG])
fi
PKG_PROG_PKG_CONFIG
],
[no], [
PKG_CONFIG=''
dnl force AX_CHECK_OPENSSL to ignore pkg-config
ac_cv_path_ac_pt_PKG_CONFIG=''
ac_cv_prog_ac_ct_PKG_CONFIG=''
],
[AC_MSG_ERROR([invalid argument --with-pkg-config=$with_pkg_config])]
)
if test "$with_pkg_config" = yes -a -z "$PKG_CONFIG"; then
AC_MSG_ERROR([pkg-config is required])]
fi
# Set name for machine-dependent library files
AC_ARG_VAR([MACHDEP], [name for machine-dependent library files])
AC_MSG_CHECKING([MACHDEP])
if test -z "$MACHDEP"
then
# avoid using uname for cross builds
if test "$cross_compiling" = yes; then
# ac_sys_system and ac_sys_release are used for setting
# a lot of different things including 'define_xopen_source'
# in the case statement below.
case "$host" in
*-*-linux-android*)
ac_sys_system=Linux-android
;;
*-*-linux*)
ac_sys_system=Linux
;;
*-*-cygwin*)
ac_sys_system=Cygwin
;;
*-*-vxworks*)
ac_sys_system=VxWorks
;;
*-*-emscripten)
ac_sys_system=Emscripten
;;
*-*-wasi)
ac_sys_system=WASI
;;
*)
# for now, limit cross builds to known configurations
MACHDEP="unknown"
AC_MSG_ERROR([cross build not supported for $host])
esac
ac_sys_release=
else
ac_sys_system=`uname -s`
if test "$ac_sys_system" = "AIX" \
-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then
ac_sys_release=`uname -v`
else
ac_sys_release=`uname -r`
fi
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 $MACHDEP in
aix*) MACHDEP="aix";;
linux*) MACHDEP="linux";;
cygwin*) MACHDEP="cygwin";;
darwin*) MACHDEP="darwin";;
'') MACHDEP="unknown";;
esac
if test "$ac_sys_system" = "SunOS"; then
# For Solaris, there isn't an OS version specific macro defined
# in most compilers, so we define one here.
SUNOS_VERSION=`echo $ac_sys_release | sed -e 's!\.\([0-9]\)$!.0\1!g' | tr -d '.'`
AC_DEFINE_UNQUOTED([Py_SUNOS_VERSION], [$SUNOS_VERSION],
[The version of SunOS/Solaris as reported by `uname -r' without the dot.])
fi
fi
AC_MSG_RESULT(["$MACHDEP"])
AC_MSG_CHECKING([for --enable-universalsdk])
AC_ARG_ENABLE([universalsdk],
AS_HELP_STRING([--enable-universalsdk@<:@=SDKDIR@:>@],
[create a universal binary build.
SDKDIR specifies which macOS SDK should be used to perform the build,
see Mac/README.rst. (default is no)]),
[
case $enableval in
yes)
# Locate the best usable SDK, see Mac/README for more
# information
enableval="`/usr/bin/xcodebuild -version -sdk macosx Path 2>/dev/null`"
if ! ( echo $enableval | grep -E '\.sdk' 1>/dev/null )
then
enableval=/Developer/SDKs/MacOSX10.4u.sdk
if test ! -d "${enableval}"
then
enableval=/
fi
fi
;;
esac
case $enableval in
no)
UNIVERSALSDK=
enable_universalsdk=
;;
*)
UNIVERSALSDK=$enableval
if test ! -d "${UNIVERSALSDK}"
then
AC_MSG_ERROR([--enable-universalsdk specifies non-existing SDK: ${UNIVERSALSDK}])
fi
;;
esac
],[
UNIVERSALSDK=
enable_universalsdk=
])
if test -n "${UNIVERSALSDK}"
then
AC_MSG_RESULT([${UNIVERSALSDK}])
else
AC_MSG_RESULT([no])
fi
AC_SUBST([UNIVERSALSDK])
AC_SUBST([ARCH_RUN_32BIT])
ARCH_RUN_32BIT=""
# For backward compatibility reasons we prefer to select '32-bit' if available,
# otherwise use 'intel'
UNIVERSAL_ARCHS="32-bit"
if test "`uname -s`" = "Darwin"
then
if test -n "${UNIVERSALSDK}"
then
if test -z "`/usr/bin/file -L "${UNIVERSALSDK}/usr/lib/libSystem.dylib" | grep ppc`"
then
UNIVERSAL_ARCHS="intel"
fi
fi
fi
AC_SUBST([LIPO_32BIT_FLAGS])
AC_SUBST([LIPO_INTEL64_FLAGS])
AC_MSG_CHECKING([for --with-universal-archs])
AC_ARG_WITH([universal-archs],
AS_HELP_STRING([--with-universal-archs=ARCH],
[specify the kind of macOS universal binary that should be created.
This option is only valid when --enable-universalsdk is set; options are:
("universal2", "intel-64", "intel-32", "intel", "32-bit",
"64-bit", "3-way", or "all")
see Mac/README.rst]),
[
UNIVERSAL_ARCHS="$withval"
],
[])
if test -n "${UNIVERSALSDK}"
then
AC_MSG_RESULT([${UNIVERSAL_ARCHS}])
else
AC_MSG_RESULT([no])
fi
AC_ARG_WITH([framework-name],
AS_HELP_STRING([--with-framework-name=FRAMEWORK],
[specify the name for the python framework on macOS
only valid when --enable-framework is set. see Mac/README.rst
(default is 'Python')]),
[
PYTHONFRAMEWORK=${withval}
PYTHONFRAMEWORKDIR=${withval}.framework
PYTHONFRAMEWORKIDENTIFIER=org.python.`echo $withval | tr '[A-Z]' '[a-z]'`
],[
PYTHONFRAMEWORK=Python
PYTHONFRAMEWORKDIR=Python.framework
PYTHONFRAMEWORKIDENTIFIER=org.python.python
])
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
AC_ARG_ENABLE([framework],
AS_HELP_STRING([--enable-framework@<:@=INSTALLDIR@:>@],
[create a Python.framework rather than a traditional Unix install.
optional INSTALLDIR specifies the installation path. see Mac/README.rst
(default is no)]),
[
case $enableval in
yes)
enableval=/Library/Frameworks
esac
case $enableval in
no)
PYTHONFRAMEWORK=
PYTHONFRAMEWORKDIR=no-framework
PYTHONFRAMEWORKPREFIX=
PYTHONFRAMEWORKINSTALLDIR=
PYTHONFRAMEWORKINSTALLNAMEPREFIX=
RESSRCDIR=
FRAMEWORKINSTALLFIRST=
FRAMEWORKINSTALLLAST=
FRAMEWORKALTINSTALLFIRST=
FRAMEWORKALTINSTALLLAST=
FRAMEWORKPYTHONW=
INSTALLTARGETS="commoninstall bininstall maninstall"
if test "x${prefix}" = "xNONE"; then
FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
else
FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
fi
enable_framework=
;;
*)
PYTHONFRAMEWORKPREFIX="${enableval}"
PYTHONFRAMEWORKINSTALLDIR=$PYTHONFRAMEWORKPREFIX/$PYTHONFRAMEWORKDIR
FRAMEWORKINSTALLFIRST="frameworkinstallstructure"
FRAMEWORKALTINSTALLFIRST="frameworkinstallstructure "
case $ac_sys_system in #(
Darwin) :
FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools"
FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkaltinstallunixtools"
FRAMEWORKPYTHONW="frameworkpythonw"
FRAMEWORKINSTALLAPPSPREFIX="/Applications"
INSTALLTARGETS="commoninstall bininstall maninstall"
if test "x${prefix}" = "xNONE" ; then
FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
else
FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
fi
case "${enableval}" in
/System*)
FRAMEWORKINSTALLAPPSPREFIX="/Applications"
if test "${prefix}" = "NONE" ; then
# See below
FRAMEWORKUNIXTOOLSPREFIX="/usr"
fi
;;
/Library*)
FRAMEWORKINSTALLAPPSPREFIX="/Applications"
;;
*/Library/Frameworks)
MDIR="`dirname "${enableval}"`"
MDIR="`dirname "${MDIR}"`"
FRAMEWORKINSTALLAPPSPREFIX="${MDIR}/Applications"
if test "${prefix}" = "NONE"; then
# User hasn't specified the
# --prefix option, but wants to install
# the framework in a non-default location,
# ensure that the compatibility links get
# installed relative to that prefix as well
# instead of in /usr/local.
FRAMEWORKUNIXTOOLSPREFIX="${MDIR}"
fi
;;
*)
FRAMEWORKINSTALLAPPSPREFIX="/Applications"
;;
esac
prefix=$PYTHONFRAMEWORKINSTALLDIR/Versions/$VERSION
PYTHONFRAMEWORKINSTALLNAMEPREFIX=${prefix}
RESSRCDIR=Mac/Resources/framework
# Add files for Mac specific code to the list of output
# files:
AC_CONFIG_FILES([Mac/Makefile])
AC_CONFIG_FILES([Mac/PythonLauncher/Makefile])
AC_CONFIG_FILES([Mac/Resources/framework/Info.plist])
AC_CONFIG_FILES([Mac/Resources/app/Info.plist])
;;
*)
AC_MSG_ERROR([Unknown platform for framework build])
;;
esac
esac
],[
PYTHONFRAMEWORK=
PYTHONFRAMEWORKDIR=no-framework
PYTHONFRAMEWORKPREFIX=
PYTHONFRAMEWORKINSTALLDIR=
PYTHONFRAMEWORKINSTALLNAMEPREFIX=
RESSRCDIR=
FRAMEWORKINSTALLFIRST=
FRAMEWORKINSTALLLAST=
FRAMEWORKALTINSTALLFIRST=
FRAMEWORKALTINSTALLLAST=
FRAMEWORKPYTHONW=
INSTALLTARGETS="commoninstall bininstall maninstall"
if test "x${prefix}" = "xNONE" ; then
FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
else
FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
fi
enable_framework=
])
AC_SUBST([PYTHONFRAMEWORK])
AC_SUBST([PYTHONFRAMEWORKIDENTIFIER])
AC_SUBST([PYTHONFRAMEWORKDIR])
AC_SUBST([PYTHONFRAMEWORKPREFIX])
AC_SUBST([PYTHONFRAMEWORKINSTALLDIR])
AC_SUBST([PYTHONFRAMEWORKINSTALLNAMEPREFIX])
AC_SUBST([RESSRCDIR])
AC_SUBST([FRAMEWORKINSTALLFIRST])
AC_SUBST([FRAMEWORKINSTALLLAST])
AC_SUBST([FRAMEWORKALTINSTALLFIRST])
AC_SUBST([FRAMEWORKALTINSTALLLAST])
AC_SUBST([FRAMEWORKPYTHONW])
AC_SUBST([FRAMEWORKUNIXTOOLSPREFIX])
AC_SUBST([FRAMEWORKINSTALLAPPSPREFIX])
AC_SUBST([INSTALLTARGETS])
AC_DEFINE_UNQUOTED([_PYTHONFRAMEWORK], ["${PYTHONFRAMEWORK}"],
[framework name])
AC_SUBST([_PYTHON_HOST_PLATFORM])
if test "$cross_compiling" = yes; then
case "$host" in
*-*-linux*)
case "$host_cpu" in
arm*)
_host_ident=arm
;;
*)
_host_ident=$host_cpu
esac
;;
*-*-cygwin*)
_host_ident=
;;
*-*-vxworks*)
_host_ident=$host_cpu
;;
wasm32-*-* | wasm64-*-*)
_host_ident=$host_cpu
;;
*)
# for now, limit cross builds to known configurations
MACHDEP="unknown"
AC_MSG_ERROR([cross build not supported for $host])
esac
_PYTHON_HOST_PLATFORM="$MACHDEP${_host_ident:+-$_host_ident}"
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, for 3.4 by Jason Ish.
# In addition, Stefan Krah confirms that issue #1244610 exists through
# OpenBSD 4.6, but is fixed in 4.7.
OpenBSD/2.* | OpenBSD/3.* | OpenBSD/4.@<:@0123456@:>@)
define_xopen_source=no
# OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
# also defined. This can be overridden by defining _BSD_SOURCE
# As this has a different meaning on Linux, only define it on OpenBSD
AC_DEFINE([_BSD_SOURCE], [1],
[Define on OpenBSD to activate all library features])
;;
OpenBSD/*)
# OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
# also defined. This can be overridden by defining _BSD_SOURCE
# As this has a different meaning on Linux, only define it on OpenBSD
AC_DEFINE([_BSD_SOURCE], [1],
[Define on OpenBSD to activate all library features])
;;
# Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
# _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
# Marc Recht
NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6@<:@A-S@:>@)
define_xopen_source=no;;
# From the perspective of Solaris, _XOPEN_SOURCE is not so much a
# request to enable features supported by the standard as a request
# to disable features not supported by the standard. The best way
# for Python to use Solaris is simply to leave _XOPEN_SOURCE out
# entirely and define __EXTENSIONS__ instead.
SunOS/*)
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.
# Reconfirmed for 7.1.4 by Martin v. Loewis.
OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-4@:>@)
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;;
# On MacOS X 10.2, a bug in ncurses.h means that it craps out if
# _XOPEN_EXTENDED_SOURCE is defined. Apparently, this is fixed in 10.3, which
# identifies itself as Darwin/7.*
# On Mac OS X 10.4, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
# disables platform specific features beyond repair.
# On Mac OS X 10.3, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
# has no effect, don't bother defining them
Darwin/@<:@6789@:>@.*)
define_xopen_source=no;;
Darwin/@<:@[12]@:>@@<:@0-9@:>@.*)
define_xopen_source=no;;
# On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
# defining NI_NUMERICHOST.
QNX/6.3.2)
define_xopen_source=no
;;
# On VxWorks, defining _XOPEN_SOURCE causes compile failures
# in network headers still using system V types.
VxWorks/*)
define_xopen_source=no
;;
# On HP-UX, defining _XOPEN_SOURCE to 600 or greater hides
# chroot() and other functions
hp*|HP*)
define_xopen_source=no
;;
esac
if test $define_xopen_source = yes
then
# X/Open 7, incorporating POSIX.1-2008
AC_DEFINE([_XOPEN_SOURCE], [700],
[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], [200809L],
[Define to activate features from IEEE Stds 1003.1-2008])
fi
# On HP-UX mbstate_t requires _INCLUDE__STDC_A1_SOURCE
case $ac_sys_system in
hp*|HP*)
define_stdc_a1=yes;;
*)
define_stdc_a1=no;;
esac
if test $define_stdc_a1 = yes
then
AC_DEFINE([_INCLUDE__STDC_A1_SOURCE], [1],
[Define to include mbstate_t for mbrtowc])
fi
# Record the configure-time value of MACOSX_DEPLOYMENT_TARGET,
# it may influence the way we can build extensions, so distutils
# needs to check it
AC_SUBST([CONFIGURE_MACOSX_DEPLOYMENT_TARGET])
AC_SUBST([EXPORT_MACOSX_DEPLOYMENT_TARGET])
CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
# checks for alternative programs
# compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just
# for debug/optimization stuff. BASECFLAGS is for flags that are required
# just to get things to compile and link. Users are free to override OPT
# when running configure or make. The build should not break if they do.
# BASECFLAGS should generally not be messed with, however.
# If the user switches compilers, we can't believe the cache
if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
then
AC_MSG_ERROR([cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling)])
fi
# Don't let AC_PROG_CC set the default CFLAGS. It normally sets -g -O2
# when the compiler supports them, but we don't always want -O2, and
# we set -g later.
if test -z "$CFLAGS"; then
CFLAGS=
fi
dnl Emscripten SDK and WASI SDK default to wasm32.
dnl On Emscripten use MEMORY64 setting to build target wasm64-emscripten.
dnl for wasm64.
AS_CASE([$host],
[wasm64-*-emscripten], [
AS_VAR_APPEND([CFLAGS], [" -sMEMORY64=1"])
AS_VAR_APPEND([LDFLAGS], [" -sMEMORY64=1"])
],
)
if test "$ac_sys_system" = "Darwin"
then
dnl look for SDKROOT
AC_CHECK_PROG([HAS_XCRUN], [xcrun], [yes], [missing])
AC_MSG_CHECKING([macOS SDKROOT])
if test -z "$SDKROOT"; then
dnl SDKROOT not set
if test "$HAS_XCRUN" = "yes"; then
dnl detect with Xcode
SDKROOT=$(xcrun --show-sdk-path)
else
dnl default to root
SDKROOT="/"
fi
fi
AC_MSG_RESULT([$SDKROOT])
# Compiler selection on MacOSX is more complicated than
# AC_PROG_CC can handle, see Mac/README for more
# information
if test -z "${CC}"
then
found_gcc=
found_clang=
as_save_IFS=$IFS; IFS=:
for as_dir in $PATH
do
IFS=$as_save_IFS
if test -x "${as_dir}/gcc"; then
if test -z "${found_gcc}"; then
found_gcc="${as_dir}/gcc"
fi
fi
if test -x "${as_dir}/clang"; then
if test -z "${found_clang}"; then
found_clang="${as_dir}/clang"
fi
fi
done
IFS=$as_save_IFS
if test -n "$found_gcc" -a -n "$found_clang"
then
if test -n "`"$found_gcc" --version | grep llvm-gcc`"
then
AC_MSG_NOTICE([Detected llvm-gcc, falling back to clang])
CC="$found_clang"
CXX="$found_clang++"
fi
elif test -z "$found_gcc" -a -n "$found_clang"
then
AC_MSG_NOTICE([No GCC found, use CLANG])
CC="$found_clang"
CXX="$found_clang++"
elif test -z "$found_gcc" -a -z "$found_clang"
then
found_clang=`/usr/bin/xcrun -find clang 2>/dev/null`
if test -n "${found_clang}"
then
AC_MSG_NOTICE([Using clang from Xcode.app])
CC="${found_clang}"
CXX="`/usr/bin/xcrun -find clang++`"
# else: use default behaviour
fi
fi
fi
fi
AC_PROG_CC
AC_PROG_CPP
AC_PROG_GREP
AC_PROG_SED
AC_PROG_EGREP
dnl detect compiler name
dnl check for xlc before clang, newer xlc's can use clang as frontend.
dnl check for GCC last, other compilers set __GNUC__, too.
dnl msvc is listed for completeness.
AC_CACHE_CHECK([for CC compiler name], [ac_cv_cc_name], [
cat > conftest.c <<EOF
#if defined(__INTEL_COMPILER) || defined(__ICC)
icc
#elif defined(__ibmxl__) || defined(__xlc__) || defined(__xlC__)
xlc
#elif defined(_MSC_VER)
msvc
#elif defined(__clang__)
clang
#elif defined(__GNUC__)
gcc
#else
# error unknown compiler
#endif
EOF
if $CPP $CPPFLAGS conftest.c >conftest.out 2>/dev/null; then
ac_cv_cc_name=`grep -v '^#' conftest.out | grep -v '^ *$' | tr -d ' '`
else
ac_cv_cc_name="unknown"
fi
rm -f conftest.c conftest.out
])
# checks for UNIX variants that set C preprocessor variables
# may set _GNU_SOURCE, __EXTENSIONS__, _POSIX_PTHREAD_SEMANTICS,
# _POSIX_SOURCE, _POSIX_1_SOURCE, and more
AC_USE_SYSTEM_EXTENSIONS
AC_SUBST([CXX])
preset_cxx="$CXX"
if test -z "$CXX"
then
case "$CC" in
gcc) AC_PATH_TOOL([CXX], [g++], [g++], [notfound]) ;;
cc) AC_PATH_TOOL([CXX], [c++], [c++], [notfound]) ;;
clang|*/clang) AC_PATH_TOOL([CXX], [clang++], [clang++], [notfound]) ;;
icc|*/icc) AC_PATH_TOOL([CXX], [icpc], [icpc], [notfound]) ;;
esac
if test "$CXX" = "notfound"
then
CXX=""
fi
fi
if test -z "$CXX"
then
AC_CHECK_TOOLS([CXX], [$CCC c++ g++ gcc CC cxx cc++ cl], [notfound])
if test "$CXX" = "notfound"
then
CXX=""
fi
fi
if test "$preset_cxx" != "$CXX"
then
AC_MSG_NOTICE([
By default, distutils will build C++ extension modules with "$CXX".
If this is not intended, then set CXX on the configure command line.
])
fi
AC_MSG_CHECKING([for the platform triplet based on compiler characteristics])
if $CPP $CPPFLAGS $srcdir/Misc/platform_triplet.c >conftest.out 2>/dev/null; then
PLATFORM_TRIPLET=`grep '^PLATFORM_TRIPLET=' conftest.out | tr -d ' '`
PLATFORM_TRIPLET="${PLATFORM_TRIPLET@%:@PLATFORM_TRIPLET=}"
AC_MSG_RESULT([$PLATFORM_TRIPLET])
else
AC_MSG_RESULT([none])
fi
rm -f conftest.out
dnl On some platforms, using a true "triplet" for MULTIARCH would be redundant.
dnl For example, `arm64-apple-darwin` is redundant, because there isn't a
dnl non-Apple Darwin. Including the CPU architecture can also be potentially
dnl redundant - on macOS, for example, it's possible to do a single compile
dnl pass that includes multiple architectures, so it would be misleading for
dnl MULTIARCH (and thus the sysconfigdata module name) to include a single CPU
dnl architecture. PLATFORM_TRIPLET will be a pair or single value for these
dnl platforms.
AC_MSG_CHECKING([for multiarch])
AS_CASE([$ac_sys_system],
[Darwin*], [MULTIARCH=""],
[FreeBSD*], [MULTIARCH=""],
[MULTIARCH=$($CC --print-multiarch 2>/dev/null)]
)
AC_SUBST([MULTIARCH])
if test x$PLATFORM_TRIPLET != x && test x$MULTIARCH != x; then
if test x$PLATFORM_TRIPLET != x$MULTIARCH; then
AC_MSG_ERROR([internal configure error for the platform triplet, please file a bug report])
fi
elif test x$PLATFORM_TRIPLET != x && test x$MULTIARCH = x; then
MULTIARCH=$PLATFORM_TRIPLET
fi
AC_SUBST([PLATFORM_TRIPLET])
AC_MSG_RESULT([$MULTIARCH])
dnl Even if we *do* include the CPU architecture in the MULTIARCH value, some
dnl platforms don't need the CPU architecture in the SOABI tag. These platforms
dnl will have multiple sysconfig modules (one for each CPU architecture), but
dnl use a single "fat" binary at runtime. SOABI_PLATFORM is the component of
dnl the PLATFORM_TRIPLET that will be used in binary module extensions.
AS_CASE([$ac_sys_system],
[SOABI_PLATFORM=$PLATFORM_TRIPLET]
)
if test x$MULTIARCH != x; then
MULTIARCH_CPPFLAGS="-DMULTIARCH=\\\"$MULTIARCH\\\""
fi
AC_SUBST([MULTIARCH_CPPFLAGS])
dnl Support tiers according to https://peps.python.org/pep-0011/
dnl