- Update ac_python_devel to check and complain about Python < 2.1.0

git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@275 3ecf2c5c-341e-0410-92b4-d18e462d057c

ChangeLog

@@ -1,3 +1,41 @@
+2006-01-29 17:33  tchernobog
+
+	* trunk/m4/ac_python_devel.m4: - Fix macro documentation header
+
+2006-01-29 15:34  tchernobog
+
+	* trunk/doc/Makefile.am: - Make ``make distclean'' to complete
+	  cleanly when directory doc/API doesn't exists.
+
+2006-01-29 15:33  tchernobog
+
+	* trunk/m4/ac_python_devel.m4: - Overhaul ac_python_devel.m4 using
+	  extensively informations provided by the interpreter. Will try to
+	  send upstream if told to do so.
+
+2006-01-28 20:42  tchernobog
+
+	* trunk/doc/sgpem2dman.texi: - Change non-existant English word with
+	  something understandable :-)
+
+2006-01-28 20:39  tchernobog
+
+	* trunk/configure.ac, trunk/distro/gentoo,
+	  trunk/distro/gentoo/sgpemv2-0.00.ebuild,
+	  trunk/src/backend/Makefile.am, trunk/src/backend/schedulable.cc,
+	  trunk/src/backend/schedulable.hh, trunk/src/main.hh,
+	  trunk/src/startgui.cc: - Get DSO visibility check right in
+	  configure.ac. Now it should work correctly with GCC >= 4.0, while
+	  doing nothing for GCC < 4.0 - Add class sgpem::schedulable to test
+	  for DSO visibility export. Methods may need to be reordered to
+	  conform to coding style guidelines
+
+2006-01-27 19:26  tchernobog
+
+	* trunk/ChangeLog, trunk/configure.ac, trunk/src/Makefile.am: -
+	  Added the possibility to pass LT_LDFLAGS to configure in order to
+	  obtain a completely static build
+
 2006-01-27 17:57  tchernobog
 
 	* trunk/ChangeLog, trunk/configure.ac, trunk/src/Makefile.am,

m4/ac_python_devel.m4

@@ -7,6 +7,9 @@ dnl Also exports $(PYTHON_EXTRA_LIBS) and $(PYTHON_EXTRA_LDFLAGS)
 dnl for embedding Python in your code.
 dnl If the user wants to employ a particular version of Python, she can
 dnl now pass to configure the PYTHON_VERSION environment variable.
+dnl Should work for all versions of Python >= 2.1.0. You can disable the
+dnl check for the python version by setting the PYTHON_NOVERSIONCHECK
+dnl environment variable.
 dnl
 dnl @category InstalledPackages
 dnl @author Sebastian Huber <sebastian-huber@web.de>
@@ -28,6 +31,31 @@ AC_DEFUN([AC_PYTHON_DEVEL],[
 	if test -z "$PYTHON"; then
 	   AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
 	fi
+
+	#
+	# Check for a version of Python >= 2.1.0
+	#
+	AC_MSG_CHECKING([for a version of Python >= 2.1.0])
+	ac_supports_python_ver=`$PYTHON -c "import sys, string; \
+		print string.split(sys.version)[[0]] >= '2.5.0'"`
+	if test "$ac_supports_python_ver" != "True"; then
+		if test -z "$PYTHON_NOVERSIONCHECK"; then
+			AC_MSG_RESULT([no])
+			AC_MSG_FAILURE([
+This version of the AC@&t@_PYTHON_DEVEL macro
+doesn't work properly with versions of Python before
+2.1.0. You may need to re-run configure, setting the
+variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,
+PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
+Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
+to something else than an empty string.
+])dnl
+		else
+			AC_MSG_RESULT([skip at user request])
+		fi
+	else 
+		AC_MSG_RESULT([yes])
+	fi
 	
 	#
 	# Check for Python include path
@@ -36,7 +64,12 @@ AC_DEFUN([AC_PYTHON_DEVEL],[
 		python_path=`$PYTHON -c "import distutils.sysconfig; \
                	print distutils.sysconfig.get_python_inc();"`
 		AC_MSG_RESULT([$python_path])
-	AC_SUBST([PYTHON_CPPFLAGS],[-I$python_path])
+	if test -z "${python_path}"; then
+		AC_MSG_WARN([cannot get include path. Please set it by hand.])
+	else
+		python_path="-I$python_path"
+	fi
+	AC_SUBST([PYTHON_CPPFLAGS],[$python_path])
 
 	#
 	# Check for Python library path