diff --git a/aarch64-lib64-support.diff b/graphviz-aarch64_lib64_support.patch
similarity index 100%
rename from aarch64-lib64-support.diff
rename to graphviz-aarch64_lib64_support.patch
diff --git a/graphviz-plugins.changes b/graphviz-plugins.changes
index f279051..af1735b 100644
--- a/graphviz-plugins.changes
+++ b/graphviz-plugins.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Mar 28 11:51:09 CET 2013 - pth@suse.de
+
+- Rename aarch64-lib64-support.diff to graphviz-aarch64_lib64_support.patch.
+- Compile the code in lib/vmalloc with -fno-strict-aliasing
+  as it does type punning.
+
 -------------------------------------------------------------------
 Sat Mar 16 22:27:10 UTC 2013 - dmueller@suse.com
 
diff --git a/graphviz-plugins.spec b/graphviz-plugins.spec
index e2b8039..27d5982 100644
--- a/graphviz-plugins.spec
+++ b/graphviz-plugins.spec
@@ -91,7 +91,8 @@ Group:          Productivity/Graphics/Visualization/Graph
 Url:            http://www.graphviz.org/
 Source:         http://www.graphviz.org/pub/graphviz/ARCHIVE/%{mname}-%{version}.tar.gz
 Patch1:         graphviz-gd_png_check_sig.patch
-Patch4:         aarch64-lib64-support.diff
+Patch4:         graphviz-aarch64_lib64_support.patch
+Patch5:         graphviz-type_punning.patch
 Patch100:       graphviz-plugins-fix_install_dirs.patch
 Patch101:       graphviz-python_version.patch
 Patch102:       graphviz-plugins-tcl_install_dir.patch
@@ -263,6 +264,7 @@ Provides some additional PDF and HTML documentation for graphviz.
 %setup -q -n %{mname}-%{version}
 %patch1 
 %patch4
+%patch5
 %patch100
 %patch101
 %patch102
@@ -338,8 +340,6 @@ done
 %if 0%{?suse_version} > 1020
 %fdupes -s %{buildroot}%{_defaultdocdir}/%{mname}
 %endif
-#%clean
-#rm -rf %{buildroot}
 rm -rf %{buildroot}/%{_libdir}/%{mname}/%{_lib}
 
 %files -n graphviz-gd
diff --git a/graphviz-type_punning.patch b/graphviz-type_punning.patch
new file mode 100644
index 0000000..6270f2a
--- /dev/null
+++ b/graphviz-type_punning.patch
@@ -0,0 +1,24 @@
+From: Philipp Thomas <pth@suse.de>
+Date: 2013-03-28 11:43:28+01:00
+Subject: Switch of strict aliasing
+
+The vmalloc code uses type-punning in a macro so switch off strict aliasing
+for this code.
+
+---
+ lib/vmalloc/Makefile.am |    2 ++
+ 1 file changed, 2 insertions(+)
+
+Index: lib/vmalloc/Makefile.am
+===================================================================
+--- lib/vmalloc/Makefile.am.orig	2009-09-16 20:49:46.000000000 +0200
++++ lib/vmalloc/Makefile.am	2013-03-28 11:42:12.948760295 +0100
+@@ -9,6 +9,8 @@ libvmalloc_C_la_SOURCES = malloc.c vmbes
+ 	vmprofile.c vmregion.c vmsegment.c vmset.c vmstat.c vmstrdup.c \
+ 	vmtrace.c vmwalk.c
+ 
++AM_CFLAGS = -fno-strict-aliasing
++
+ ${top_builddir}/FEATURE/vmalloc: ${top_srcdir}/lib/vmalloc/features/vmalloc
+ 	mkdir -p ${top_builddir}/FEATURE
+ 	${top_srcdir}/iffe - set cc $(CC) $(CCMODE) $(CXFLAGS) : run ${top_srcdir}/lib/vmalloc/features/vmalloc > $@
diff --git a/graphviz.changes b/graphviz.changes
index 3ca9091..431101e 100644
--- a/graphviz.changes
+++ b/graphviz.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Mar 28 11:51:09 CET 2013 - pth@suse.de
+
+- Rename aarch64-lib64-support.diff to graphviz-aarch64_lib64_support.patch.
+- Add graphviz-type_punning.patch to compile the code in lib/vmalloc
+  with -fno-strict-aliasing as it does type punning.
+
 -------------------------------------------------------------------
 Sat Mar 16 22:26:37 UTC 2013 - dmueller@suse.com
 
diff --git a/graphviz.spec b/graphviz.spec
index 3b8d34d..6646e82 100644
--- a/graphviz.spec
+++ b/graphviz.spec
@@ -31,7 +31,8 @@ Source2:        graphviz-rpmlintrc
 Patch1:         graphviz-gd_png_check_sig.patch
 Patch2:         graphviz-fix-pkgIndex.patch
 Patch3:         graphviz-missing_headers.patch
-Patch4:         aarch64-lib64-support.diff
+Patch4:         graphviz-aarch64_lib64_support.patch
+Patch5:         graphviz-type_punning.patch
 BuildRequires:  bison
 BuildRequires:  fdupes
 BuildRequires:  flex
@@ -90,6 +91,7 @@ Note: If you need output in png format you also need to install
 %patch2
 %patch3 -p1
 %patch4
+%patch5
 
 # Fix path in generated man pages
 sed -e 's$@LIB_DIR@$%{_libdir}$g' tclpkg/gv/gv_doc_langs.tcl >tclpkg/gv/gv_doc_langs.tcl.new && mv tclpkg/gv/gv_doc_langs.tcl.new tclpkg/gv/gv_doc_langs.tcl