gstreamer 0.x: fix for Darwin

pkgs/development/libraries/gstreamer/legacy/gstreamer/darwin.patch

@@ -0,0 +1,14 @@
+diff --git a/gst/gstdatetime.c b/gst/gstdatetime.c
+index 60f709f..cdc7e75 100644
+--- a/gst/gstdatetime.c
++++ b/gst/gstdatetime.c
+@@ -21,8 +21,8 @@
+ #include "config.h"
+ #endif
+ 
+-#include "glib-compat-private.h"
+ #include "gst_private.h"
++#include "glib-compat-private.h"
+ #include "gstdatetime.h"
+ #include <glib.h>
+ #include <math.h>

pkgs/development/libraries/gstreamer/legacy/gstreamer/default.nix

@@ -16,6 +16,11 @@ stdenv.mkDerivation rec {
 
   patchPhase = ''
     sed -i -e 's/^   /\t/' docs/gst/Makefile.in docs/libs/Makefile.in docs/plugins/Makefile.in
+  ''
+  + stdenv.lib.optionalString stdenv.isDarwin ''
+    # Applying this patch manually to avoid a rebuild on Linux. Feel free to refactor later
+    # See https://trac.macports.org/ticket/40783 for explanation of patch
+    patch -p1 < ${./darwin.patch}
   '';
 
   configureFlags = ''