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xen/m4/python_devel.m4
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Anthony PERARD 0d2791b007 configure: Fix test for python 3.8
https://docs.python.org/3.8/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build

> To embed Python into an application, a new --embed option must be
> passed to python3-config --libs --embed to get -lpython3.8 (link the
> application to libpython). To support both 3.8 and older, try
> python3-config --libs --embed first and fallback to python3-config
> --libs (without --embed) if the previous command fails.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
[ wei: rerun autogen.sh ]
2019-11-20 10:46:48 +00:00

46 lines
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AC_DEFUN([AX_CHECK_PYTHON_DEVEL], [
ac_previous_cppflags=$CPPFLAGS
ac_previous_ldflags=$LDFLAGS
ac_previous_libs=$LIBS
AC_PATH_PROG([pyconfig], [$PYTHON-config], [no])
AS_IF([test x"$pyconfig" = x"no"], [
dnl For those that don't have python-config
CPPFLAGS="$CFLAGS `$PYTHON -c 'import distutils.sysconfig; \
print("-I" + distutils.sysconfig.get_config_var("INCLUDEPY"))'`"
CPPFLAGS="$CPPFLAGS `$PYTHON -c 'import distutils.sysconfig; \
print(distutils.sysconfig.get_config_var("CFLAGS"))'`"
LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
print("-L" + distutils.sysconfig.get_python_lib(plat_specific=1,\
standard_lib=1) + "/config")'`"
LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
print(distutils.sysconfig.get_config_var("LINKFORSHARED"))'`"
LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
print(distutils.sysconfig.get_config_var("LDFLAGS"))'`"
LIBS="$LIBS `$PYTHON -c 'import distutils.sysconfig; \
print(distutils.sysconfig.get_config_var("LIBS"))'`"
LIBS="$LIBS `$PYTHON -c 'import distutils.sysconfig; \
print(distutils.sysconfig.get_config_var("SYSLIBS"))'`"
], [
dnl If python-config is found use it
CPPFLAGS="$CFLAGS `$PYTHON-config --cflags`"
dnl We need to use --embed with python 3.8 but not with earlier version so
dnl check if it is recognized.
python_devel_embed=""
if $PYTHON-config --embed >/dev/null 2>/dev/null; then
python_devel_embed="--embed"
fi
LDFLAGS="$LDFLAGS `$PYTHON-config --ldflags $python_devel_embed`"
LIBS="$LIBS `$PYTHON-config --libs $python_devel_embed`"
unset python_devel_embed
])
AC_CHECK_HEADER([Python.h], [],
[AC_MSG_ERROR([Unable to find Python development headers])],)
AC_CHECK_FUNC([PyArg_ParseTuple], [],
[AC_MSG_ERROR([Unable to find a suitable python development library])])
CPPFLAGS=$ac_previous_cppflags
LDFLAGS=$ac_previous_ldflags
LIBS=$ac_previous_libs
])