firefox-esr91/firefox-18-fix-cairo-build.patch

diff -urN mozilla-release.orig/gfx/thebes/gfxPlatform.cpp mozilla-release/gfx/thebes/gfxPlatform.cpp
--- mozilla-release.orig/gfx/thebes/gfxPlatform.cpp	2013-02-11 17:09:53.685871126 +0400
+++ mozilla-release/gfx/thebes/gfxPlatform.cpp	2013-02-11 17:14:06.844574090 +0400
@@ -507,11 +507,10 @@
   delete static_cast<SourceSurfaceUserData*>(srcSurfUD);
 }
 
-void SourceSnapshotDetached(cairo_surface_t *nullSurf)
+void SourceSnapshotDetached(void *nullSurf)
 {
-  gfxImageSurface* origSurf =
-    static_cast<gfxImageSurface*>(cairo_surface_get_user_data(nullSurf, &kSourceSurface));
 
+  gfxImageSurface *origSurf = static_cast<gfxImageSurface*>(nullSurf);
   origSurf->SetData(&kSourceSurface, NULL, NULL);
 }
 
@@ -626,14 +625,9 @@
 
     }
 
-    cairo_surface_t *nullSurf =
-	cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
-    cairo_surface_set_user_data(nullSurf,
-                                &kSourceSurface,
-                                imgSurface,
-                                NULL);
-    cairo_surface_attach_snapshot(imgSurface->CairoSurface(), nullSurf, SourceSnapshotDetached);
-    cairo_surface_destroy(nullSurf);
+      cairo_surface_set_mime_data(imgSurface->CairoSurface(), "mozilla/magic",
+               (const unsigned char *) "data", 4, SourceSnapshotDetached, imgSurface.get());
+
   }
 
   SourceSurfaceUserData *srcSurfUD = new SourceSurfaceUserData;