Build: Makefiles for Python packages

This version builds only one version of Python packages. If you want to
build for Python 2 & 3 call configure twice using different --with-python
or specify PYTHON variable when calling make.

dist-hook is using SOURCES.txt file from egg-info.
According to Petr Viktorin this should be enough for our purposes
and avoids need to create plugins for setuptools.

Currently VPATH builds do not work for various reasons.
This should be fixed later on.

Most credit goes to these guys:
 Christian Heimes <cheimes@redhat.com>
 Petr Viktorin <pviktori@redhat.com>
 Kevin Brown <kevin@kevin-brown.com>

https://fedorahosted.org/freeipa/ticket/6418

Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

Makefile.python.am

@@ -0,0 +1,38 @@
+pkgname = $(shell basename "$(abs_srcdir)")
+pkgpythondir = $(pythondir)/$(pkgname)
+
+all-local:
+	cd $(srcdir); $(PYTHON) setup.py build \
+	--build-base "$(abs_builddir)/build" \
+	--verbose
+
+install-exec-local:
+	$(PYTHON) $(srcdir)/setup.py install \
+		--prefix "$(DESTDIR)$(prefix)" \
+		--single-version-externally-managed \
+		--record "$(DESTDIR)$(pkgpythondir)/install_files.txt" \
+		--optimize 1 \
+		--verbose
+
+uninstall-local:
+	cat "$(DESTDIR)$(pkgpythondir)/install_files.txt" | xargs rm -rf
+	rm -rf "$(DESTDIR)$(pkgpythondir)"
+
+clean-local:
+	$(PYTHON) "$(srcdir)/setup.py" clean --all
+	rm -rf "$(srcdir)/build" "$(srcdir)/dist" "$(srcdir)/MANIFEST"
+	find "$(srcdir)" \
+		-name "*.py[co]" -delete -o	\
+		-name "__pycache__" -delete -o	\
+		-name "*.egg-info" -exec rm -rf {} +
+
+# take list of all Python source files and copy them into distdir
+# SOURCES.txt does not contain directories so we need to create those
+dist-hook:
+	$(PYTHON) "$(srcdir)/setup.py" egg_info
+	PYTHON_SOURCES=$$(cat "$(srcdir)/$(pkgname).egg-info/SOURCES.txt") || exit $$?;	\
+	for FILEN in $${PYTHON_SOURCES}; 						\
+	do										\
+		if test -x "$(srcdir)/$${FILEN}"; then MODE=755; else MODE=644; fi;	\
+		$(INSTALL) -D -m $${MODE} "$(srcdir)/$${FILEN}" "$(distdir)/$${FILEN}" || exit $$?;	\
+	done