[pygobject] Deduce PYTHON_LIBS in addition to PYTHON_INCLUDES

[Simon van der Linden <svdlinden src gnome org>]

commit fc7d7f7f153d57ff3866b7bfd5e6479d702cc4d9
Author: Simon van der Linden <svdlinden gnome org>
Date:   Mon Jan 17 14:35:14 2011 +0100

    Deduce PYTHON_LIBS in addition to PYTHON_INCLUDES
    
    https://bugzilla.gnome.org/show_bug.cgi?id=620215

 gi/Makefile.am    |    6 ++++--
 gio/Makefile.am   |    2 +-
 glib/Makefile.am  |    2 +-
 m4/python.m4      |    7 +++++--
 tests/Makefile.am |    2 +-
 5 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/gi/Makefile.am b/gi/Makefile.am
index 8306784..8b1639d 100644
--- a/gi/Makefile.am
+++ b/gi/Makefile.am
@@ -24,7 +24,8 @@ _gi_la_LDFLAGS = \
 	-avoid-version \
 	-export-symbols-regex "init_gi|PyInit__gi"
 _gi_la_LIBADD = \
-	$(GI_LIBS)
+	$(GI_LIBS) \
+	$(PYTHON_LIBS)
 _gi_la_SOURCES = \
 	pygi-repository.c \
 	pygi-repository.h \
@@ -65,7 +66,8 @@ _gi_cairo_la_LDFLAGS = \
 	-export-symbols-regex "init_gi_cairo|PyInit__gi_cairo"
 _gi_cairo_la_LIBADD = \
 	$(GI_LIBS) \
-	$(PYCAIRO_LIBS)
+	$(PYCAIRO_LIBS) \
+	$(PYTHON_LIBS)
 _gi_cairo_la_SOURCES = pygi-foreign-cairo.c
 
 
diff --git a/gio/Makefile.am b/gio/Makefile.am
index 6b3eb57..b412043 100644
--- a/gio/Makefile.am
+++ b/gio/Makefile.am
@@ -85,7 +85,7 @@ EXTRA_DIST += $(GIOUNIX_DEFS) unix.override
 unix.c: $(GIOUNIX_DEFS) unix.override
 unix_la_CFLAGS = $(GIOUNIX_CFLAGS)
 unix_la_LDFLAGS = $(common_ldflags) -export-symbols-regex initunix
-unix_la_LIBADD = $(GIOUNIX_LIBS)
+unix_la_LIBADD = $(GIOUNIX_LIBS) $(PYTHON_LIBS)
 unix_la_SOURCES = unixmodule.c
 nodist_unix_la_SOURCES = unix.c
 if BUILD_GIOUNIX
diff --git a/glib/Makefile.am b/glib/Makefile.am
index 765209a..c0bf47e 100644
--- a/glib/Makefile.am
+++ b/glib/Makefile.am
@@ -20,7 +20,7 @@ common_ldflags += -no-undefined
 endif
 
 libpyglib_2_0_ PYTHON_BASENAME@_la_CFLAGS = $(GLIB_CFLAGS)
-libpyglib_2_0_ PYTHON_BASENAME@_la_LIBADD = $(GLIB_LIBS) $(FFI_LIBS)
+libpyglib_2_0_ PYTHON_BASENAME@_la_LIBADD = $(GLIB_LIBS) $(FFI_LIBS) $(PYTHON_LIBS)
 libpyglib_2_0_ PYTHON_BASENAME@_la_SOURCES = 	\
 	pyglib.c		\
 	pyglib.h		\
diff --git a/m4/python.m4 b/m4/python.m4
index afbc2a2..edc3094 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -38,22 +38,25 @@ 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
+dnl function also defines PYTHON_INCLUDES and PYTHON_LIBS
 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
+dnl deduce PYTHON_INCLUDES and PYTHON_LIBS
 py_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`
 py_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`
 if test -x "$PYTHON-config"; then
 PYTHON_INCLUDES=`$PYTHON-config --includes 2>/dev/null`
+PYTHON_LIBS=`$PYTHON-config --libs 2>/dev/null`
 else
 PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
+PYTHON_LIBS=`-lpython${PYTHON_VERSION}`
 if test "$py_prefix" != "$py_exec_prefix"; then
   PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
 fi
 fi
 AC_SUBST(PYTHON_INCLUDES)
+AC_SUBST(PYTHON_LIBS)
 dnl check if the headers exist:
 save_CPPFLAGS="$CPPFLAGS"
 CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
diff --git a/tests/Makefile.am b/tests/Makefile.am
index cf93dc6..8d9ab98 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -47,7 +47,7 @@ noinst_LTLIBRARIES += testhelper.la
 
 testhelper_la_CFLAGS = -I$(top_srcdir)/gobject -I$(top_srcdir)/glib $(PYTHON_INCLUDES) $(GLIB_CFLAGS)
 testhelper_la_LDFLAGS = -module -avoid-version
-testhelper_la_LIBADD = $(GLIB_LIBS)
+testhelper_la_LIBADD = $(GLIB_LIBS) $(PYTHON_LIBS)
 testhelper_la_SOURCES = \
 	testhelpermodule.c \
 	test-floating.c \