diff --git a/pkgs/development/libraries/ccrtp/1.8.nix b/pkgs/development/libraries/ccrtp/1.8.nix
index 26e7050a60df..78bf7a678ac7 100644
--- a/pkgs/development/libraries/ccrtp/1.8.nix
+++ b/pkgs/development/libraries/ccrtp/1.8.nix
@@ -10,7 +10,9 @@ stdenv.mkDerivation {
 
   buildInputs = [ openssl pkgconfig libgcrypt commoncpp2 ];
 
-  meta = { 
+  patches = [ ./gcc-4.6-fix.patch ];
+
+  meta = {
     description = "GNU ccRTP is an implementation of RTP, the real-time transport protocol from the IETF";
     homepage = "http://www.gnu.org/software/ccrtp/";
     license = "GPLv2";
diff --git a/pkgs/development/libraries/ccrtp/gcc-4.6-fix.patch b/pkgs/development/libraries/ccrtp/gcc-4.6-fix.patch
new file mode 100644
index 000000000000..49d07a89e52a
--- /dev/null
+++ b/pkgs/development/libraries/ccrtp/gcc-4.6-fix.patch
@@ -0,0 +1,20 @@
+diff -ubr ccrtp-1.8.0-orig/src/ccrtp/sources.h ccrtp-1.8.0/src/ccrtp/sources.h
+--- ccrtp-1.8.0-orig/src/ccrtp/sources.h	2010-04-18 20:51:49.000000000 +0200
++++ ccrtp-1.8.0/src/ccrtp/sources.h	2012-07-07 11:42:50.961179016 +0200
+@@ -45,6 +45,7 @@
+ #define CCXX_RTP_SOURCES_H_
+ 
+ #include <string>
++#include <cstddef>
+ #include <ccrtp/rtcppkt.h>
+ 
+ #ifdef	CCXX_NAMESPACES
+@@ -406,7 +407,7 @@
+ 	public:
+ 		typedef std::forward_iterator_tag iterator_category;
+ 		typedef Participant value_type;
+-		typedef ptrdiff_t difference_type;
++		typedef std::ptrdiff_t difference_type;
+ 		typedef const Participant* pointer;
+ 		typedef const Participant& reference;
+