diff --git a/dev-libs/expat/expat-2.2.1.recipe b/dev-libs/expat/expat-2.2.1.recipe
index 26374f031..99d1702ad 100644
--- a/dev-libs/expat/expat-2.2.1.recipe
+++ b/dev-libs/expat/expat-2.2.1.recipe
@@ -6,11 +6,12 @@ HOMEPAGE="http://expat.sourceforge.net/"
 COPYRIGHT="1998-2000 Thai Open Source Software Center Ltd and Clark Cooper
 	2001-2017 Expat maintainers."
 LICENSE="MIT"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="http://downloads.sf.net/expat/expat-$portVersion.tar.bz2"
 CHECKSUM_SHA256="1868cadae4c82a018e361e2b2091de103cd820aaacb0d6cfa49bd2cd83978885"
 PATCHES="
 	Makefile.am.patch
+	expat-$portVersion.patchset
 	"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64 arm"
diff --git a/dev-libs/expat/patches/expat-2.2.1.patchset b/dev-libs/expat/patches/expat-2.2.1.patchset
new file mode 100644
index 000000000..31aa71ef0
--- /dev/null
+++ b/dev-libs/expat/patches/expat-2.2.1.patchset
@@ -0,0 +1,74 @@
+From 048260a4de37118400e49774d8e9f4ff3ee39a83 Mon Sep 17 00:00:00 2001
+From: begasus <begasus@gmail.com>
+Date: Thu, 22 Jun 2017 18:14:08 +0200
+Subject: add patch from hartwork
+
+
+diff --git a/configure.ac b/configure.ac
+index e48c32e..5c0e666 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -41,7 +41,7 @@ dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
+ dnl
+ dnl If the API changes compatibly (i.e. simply adding a new function
+ dnl without changing or removing earlier interfaces), then increment LIBAGE.
+-dnl
++dnl
+ dnl If the API changes incompatibly set LIBAGE back to 0
+ dnl
+
+@@ -130,7 +130,7 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([
+
+
+ AC_MSG_CHECKING([for getrandom (Linux 3.17+, glibc 2.25+)])
+-AC_COMPILE_IFELSE([AC_LANG_SOURCE([
++AC_LINK_IFELSE([AC_LANG_SOURCE([
+   #include <stdlib.h>  /* for NULL */
+   #include <sys/random.h>
+   int main() {
+@@ -180,25 +180,25 @@ dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html
+ # AC_CPP_FUNC
+ # ------------------ #
+ # Checks to see if ANSI C99 CPP variable __func__ works.
+-# If not, perhaps __FUNCTION__ works instead.
+-# If not, we'll just define __func__ to "".
++# If not, perhaps __FUNCTION__ works instead.
++# If not, we'll just define __func__ to "".
+ AC_DEFUN([AC_CPP_FUNC],
+ [AC_REQUIRE([AC_PROG_CC_STDC])dnl
+ AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+ [[const char *foo = __func__;]])],
+-  [ac_cv_cpp_func=yes],
++  [ac_cv_cpp_func=yes],
+   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+ [[const char *foo = __FUNCTION__;]])],
+-  [ac_cv_cpp_func=__FUNCTION__],
++  [ac_cv_cpp_func=__FUNCTION__],
+   [ac_cv_cpp_func=no])])])
+ if test $ac_cv_cpp_func = __FUNCTION__; then
+   AC_DEFINE(__func__,__FUNCTION__,
+-            [Define to __FUNCTION__ or "" if `__func__' does not conform to
++            [Define to __FUNCTION__ or "" if `__func__' does not conform to
+ ANSI C.])
+ elif test $ac_cv_cpp_func = no; then
+   AC_DEFINE(__func__,"",
+-            [Define to __FUNCTION__ or "" if `__func__' does not conform to
++            [Define to __FUNCTION__ or "" if `__func__' does not conform to
+ ANSI C.])
+ fi
+ ])# AC_CPP_FUNC
+@@ -220,8 +220,8 @@ AS_HELP_STRING([--disable-xml-context],
+     [Do not retain context around the current parse point]),
+   [enable_xml_context=${enableval}])
+ AS_IF([test "x${enable_xml_context}" != "xno"], [
+-  AS_IF([test "x${enable_xml_context}" == "xyes" \
+-      -o "x${enable_xml_context}" == "x"], [
++  AS_IF([test "x${enable_xml_context}" = "xyes" \
++      -o "x${enable_xml_context}" = "x"], [
+     enable_xml_context=1024
+   ])
+   AC_DEFINE_UNQUOTED([XML_CONTEXT_BYTES], [${enable_xml_context}],
+--
+2.7.0
+