diff --git a/wavpack-strict-aliasing.patch b/wavpack-strict-aliasing.patch
new file mode 100644
index 0000000..8229af0
--- /dev/null
+++ b/wavpack-strict-aliasing.patch
@@ -0,0 +1,13 @@
+diff -up wavpack-4.60.1/cli/md5.c.strict_aliasing wavpack-4.60.1/cli/md5.c
+--- wavpack-4.60.1/cli/md5.c.strict_aliasing	2009-12-01 05:24:52.000000000 +0100
++++ wavpack-4.60.1/cli/md5.c	2013-01-03 18:38:00.647181420 +0100
+@@ -151,8 +151,7 @@ void MD5Final(digest, ctx)
+     byteReverse(ctx->in, 14);
+ 
+     /* Append length in bits and transform */
+-    ((uint32 *) ctx->in)[14] = ctx->bits[0];
+-    ((uint32 *) ctx->in)[15] = ctx->bits[1];
++    memcpy(ctx->in + 14 * sizeof (uint32), ctx->bits, 2 * sizeof (uint32));
+ 
+     MD5Transform(ctx->buf, (uint32 *) ctx->in);
+     byteReverse((unsigned char *) ctx->buf, 4);
diff --git a/wavpack.spec b/wavpack.spec
index d3a8830..5aca4c5 100644
--- a/wavpack.spec
+++ b/wavpack.spec
@@ -1,12 +1,13 @@
 Name:		wavpack
 Summary:	A completely open audiocodec
 Version:	4.60.1
-Release:	4%{?dist}
+Release:	5%{?dist}
 License:	BSD
 Group:		Applications/Multimedia
 Url:		http://www.wavpack.com/
 Source:		http://www.wavpack.com/%{name}-%{version}.tar.bz2
 Patch1:		wavpack-0001-Fixed-default-values-in-pkgconfig-file.patch
+Patch2:		wavpack-strict-aliasing.patch
 Buildroot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 %description
@@ -28,6 +29,7 @@ Files needed for developing apps using wavpack
 %prep
 %setup -q
 %patch1 -p1 -b .pkgconfig_values
+%patch2 -p1 -b .strict_aliasing
 
 %build
 %configure --disable-static
@@ -62,6 +64,9 @@ rm -rf %{buildroot}
 %doc ChangeLog README doc/*
 
 %changelog
+* Thu Jan  3 2013 Miroslav Lichvar <mlichvar@redhat.com> 4.60.1-5
+- Fix -Wstrict-aliasing compiler warnings
+
 * Sun Jul 22 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.60.1-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild