diff --git a/dev-libs/libxml2/libxml2-2.9.9.recipe b/dev-libs/libxml2/libxml2-2.9.9.recipe
index bc58dfc73..c3af48e59 100644
--- a/dev-libs/libxml2/libxml2-2.9.9.recipe
+++ b/dev-libs/libxml2/libxml2-2.9.9.recipe
@@ -10,7 +10,7 @@ available in other environments."
 HOMEPAGE="http://www.xmlsoft.org/"
 COPYRIGHT="1998-2013 Daniel Veillard.  All Rights Reserved."
 LICENSE="MIT"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="ftp://xmlsoft.org/libxml2/libxml2-$portVersion.tar.gz"
 CHECKSUM_SHA256="94fb70890143e3c6549f265cee93ec064c80a84c42ad0f23e85ee1fd6540a871"
 PATCHES="libxml2-$portVersion.patchset"
@@ -97,6 +97,10 @@ PATCH()
 		doc/devhelp/Makefile.am
 	sed -i "s,%{_datadir}/gtk-doc/html/libxml2,${developDocDir},g" \
 		libxml.spec.in
+
+	# treat __GNUC__ as true only if >= 4 in some files
+	sed -i "s/def __GNUC__/ defined\\(__GNUC__\\) \\&\\& __GNUC__ > 3/g" \
+		timsort.h
 }
 
 BUILD()