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## this one is commonly used with AM_PATH_PYTHONDIR ...
dnl AM_CHECK_PYMOD(MODNAME [,SYMBOL [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]])
dnl Check if a module containing a given symbol is visible to python.
AC_DEFUN([AM_CHECK_PYMOD],
[AC_REQUIRE([AM_PATH_PYTHON])
py_mod_var=`echo $1['_']$2 | sed 'y%./+-%__p_%'`
AC_MSG_CHECKING(for ifelse([$2],[],,[$2 in ])python module $1)
AC_CACHE_VAL(py_cv_mod_$py_mod_var, [
ifelse([$2],[], [prog="
import sys
try:
import $1
except ImportError:
sys.exit(1)
except:
sys.exit(0)
sys.exit(0)"], [prog="
import $1
$1.$2"])
if $PYTHON -c "$prog" 1>&AC_FD_CC 2>&AC_FD_CC
then
eval "py_cv_mod_$py_mod_var=yes"
else
eval "py_cv_mod_$py_mod_var=no"
fi
])
py_val=`eval "echo \`echo '$py_cv_mod_'$py_mod_var\`"`
if test "x$py_val" != xno; then
AC_MSG_RESULT(yes)
ifelse([$3], [],, [$3
])dnl
else
AC_MSG_RESULT(no)
ifelse([$4], [],, [$4
])dnl
fi
])
dnl a macro to check for ability to create python extensions
dnl AM_CHECK_PYTHON_HEADERS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE])
dnl function also defines PYTHON_INCLUDES
AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
[AC_REQUIRE([AM_PATH_PYTHON])
AC_MSG_CHECKING(for headers required to compile python extensions)
dnl deduce PYTHON_INCLUDES
py_prefix=`$PYTHON -c "import sys; print sys.prefix"`
py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"`
if $PYTHON-config --help 2>/dev/null; then
PYTHON_INCLUDES=`$PYTHON-config --includes 2>/dev/null`
else
PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
if test "$py_prefix" != "$py_exec_prefix"; then
PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
fi
fi
AC_SUBST(PYTHON_INCLUDES)
dnl check if the headers exist:
save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
AC_TRY_CPP([#include <Python.h>],dnl
[AC_MSG_RESULT(found)
$1],dnl
[AC_MSG_RESULT(not found)
$2])
CPPFLAGS="$save_CPPFLAGS"
])
dnl a macro to check for ability to embed python
dnl AM_CHECK_PYTHON_LIBS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE])
dnl function also defines PYTHON_LIBS
AC_DEFUN([AM_CHECK_PYTHON_LIBS],
[AC_REQUIRE([AM_CHECK_PYTHON_HEADERS])
AC_MSG_CHECKING(for libraries required to embed python)
dnl deduce PYTHON_LIBS
if $PYTHON-config --help 2>/dev/null; then
PYTHON_LIBS=`$PYTHON-config --ldflags 2>/dev/null`
PYTHON_LIB=`$PYTHON -c "import distutils.sysconfig as s; print s.get_python_lib(standard_lib=1)"`
if echo "$host_os" | grep darwin >/dev/null 2>&1; then
dnl OSX is a pain. Python as shipped by apple installs libpython in /usr/lib
dnl so we hardcode that. Other systems can use --with-libpython-dir to
dnl overrid this.
PYTHON_LIB_LOC=/usr/lib
else
PYTHON_LIB_LOC=$PYTHON_LIB/config
# default to prefix/lib for distros that don't have a link in
# .../pythonX.Y/config/
if test ! -e $PYTHON_LIB_LOC/libpython${PYTHON_VERSION}.so; then
PYTHON_LIB_LOC=${py_prefix}/lib
fi
fi
else
PYTHON_LIBS="-L${py_prefix}/lib -lpython${PYTHON_VERSION}"
PYTHON_LIB_LOC="${py_prefix}/lib"
fi
AC_ARG_WITH([libpython-dir],
AS_HELP_STRING([--with-libpython-dir], [the directory containing libpython${PYTHON_VERSION}]),
[
PYTHON_LIB_LOC=`echo "$withval" | sed -e 's/\/$//g'`
]
)
if echo "$host_os" | grep darwin >/dev/null 2>&1; then
dnl workaround libtool brokenness under OSX
PYTHON_LIB_SUFFIX=\\\"dylib\\\"
else
PYTHON_LIB_SUFFIX=G_MODULE_SUFFIX
fi
AC_SUBST(PYTHON_LIBS)
AC_SUBST(PYTHON_LIB_LOC)
AC_SUBST(PYTHON_LIB_SUFFIX)
dnl check if the headers exist:
save_LIBS="$LIBS"
LIBS="$LIBS $PYTHON_LIBS"
AC_TRY_LINK_FUNC(Py_Initialize, dnl
[LIBS="$save_LIBS"; AC_MSG_RESULT(yes); $1], dnl
[LIBS="$save_LIBS"; AC_MSG_RESULT(no); $2])
])
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