python: Use RELRO_LDFLAGS and NO_INDIRECT_LDFLAGS

A readonly GOT and detecting indirect linkage is useful here too.

python/Makefile.am

@@ -28,6 +28,10 @@ INCLUDES = \
 	$(GETTEXT_CPPFLAGS)
 
 AM_CFLAGS = $(WARN_CFLAGS)
+AM_LDFLAGS = \
+	$(RELRO_LDFLAGS)				\
+	$(NO_INDIRECT_LDFLAGS)				\
+	$(NULL)
 
 CLASSES_EXTRA = \
 	libvirt-override-virConnect.py \
@@ -74,6 +78,7 @@ libvirtmod_la_CFLAGS = $(WARN_CFLAGS) $(WARN_PYTHON_CFLAGS)
 
 libvirtmod_la_LDFLAGS = -module -avoid-version -shared \
 	-L$(top_builddir)/src/.libs \
+	$(AM_LDFLAGS) \
 	$(CYGWIN_EXTRA_LDFLAGS)
 libvirtmod_la_LIBADD = $(mylibs) \
 	$(CYGWIN_EXTRA_LIBADD) $(CYGWIN_EXTRA_PYTHON_LIBADD)
@@ -86,6 +91,7 @@ libvirtmod_qemu_la_CFLAGS = $(WARN_PYTHON_CFLAGS)
 
 libvirtmod_qemu_la_LDFLAGS = -module -avoid-version -shared \
 	-L$(top_builddir)/src/.libs \
+	$(AM_LDFLAGS) \
 	$(CYGWIN_EXTRA_LDFLAGS)
 libvirtmod_qemu_la_LIBADD = $(myqemulibs) \
 	$(CYGWIN_EXTRA_LIBADD) $(CYGWIN_EXTRA_PYTHON_LIBADD)
@@ -98,6 +104,7 @@ libvirtmod_lxc_la_CFLAGS = $(WARN_PYTHON_CFLAGS)
 
 libvirtmod_lxc_la_LDFLAGS = -module -avoid-version -shared \
 	-L$(top_builddir)/src/.libs \
+	$(AM_LDFLAGS) \
 	$(CYGWIN_EXTRA_LDFLAGS)
 libvirtmod_lxc_la_LIBADD = $(mylxclibs) \
 	$(CYGWIN_EXTRA_LIBADD) $(CYGWIN_EXTRA_PYTHON_LIBADD)