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Diffstat (limited to 'm4/python.m4')
| -rw-r--r-- | m4/python.m4 | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/m4/python.m4 b/m4/python.m4 new file mode 100644 index 0000000..18685f1 --- /dev/null +++ b/m4/python.m4 @@ -0,0 +1,134 @@ +## 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=`$PYTHON -c "import sys; print(sys.exec_prefix)"` +PYTHON_INCLUDES="-I${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 +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" +]) + +# The AC_MULTILIB macro was extracted and modified from +# gettext-0.15's AC_LIB_PREPARE_MULTILIB macro in the lib-prefix.m4 file +# so that the correct paths can be used for 64-bit libraries. +# +dnl Copyright (C) 2001-2005 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl From Bruno Haible. + +dnl AC_MULTILIB creates a variable libdirsuffix, containing +dnl the suffix of the libdir, either "" or "64". +dnl Only do this if the given enable parameter is "yes". +AC_DEFUN([AC_MULTILIB], +[ + dnl There is no formal standard regarding lib and lib64. The current + dnl practice is that on a system supporting 32-bit and 64-bit instruction + dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit + dnl libraries go under $prefix/lib. We determine the compiler's default + dnl mode by looking at the compiler's library search path. If at least + dnl of its elements ends in /lib64 or points to a directory whose absolute + dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the + dnl default, namely "lib". + enable_lib64="$1" + libdirsuffix="" + searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` + if test "$enable_lib64" = "yes" -a -n "$searchpath"; then + save_IFS="${IFS= }"; IFS=":" + for searchdir in $searchpath; do + if test -d "$searchdir"; then + case "$searchdir" in + */lib64/ | */lib64 ) libdirsuffix=64 ;; + *) searchdir=`cd "$searchdir" && pwd` + case "$searchdir" in + */lib64 ) libdirsuffix=64 ;; + esac ;; + esac + fi + done + IFS="$save_IFS" + fi + AC_SUBST(libdirsuffix) +]) + +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 +py_exec_prefix=`$PYTHON -c "import sys; print(sys.exec_prefix)"` +AC_MULTILIB(yes) + +if test "x$PYTHON_LIBS" = x; then + PYTHON_LIBS="-L${py_prefix}/lib${libdirsuffix} -lpython${PYTHON_VERSION}" +fi + +if test "x$PYTHON_LIB_LOC" = x; then + PYTHON_LIB_LOC="${py_prefix}/lib${libdirsuffix}" +fi +AC_SUBST(PYTHON_LIBS) +AC_SUBST(PYTHON_LIB_LOC) +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]) + +]) |