--- /dev/null
+--- mozilla-release-239e434d6d2b8e1e2b697c3416d1e96d48fe98e5/gfx/2d/ScaledFontFontconfig.cpp~ 2018-03-22 21:46:41.000000000 +0100
++++ mozilla-release-239e434d6d2b8e1e2b697c3416d1e96d48fe98e5/gfx/2d/ScaledFontFontconfig.cpp 2018-03-31 12:33:56.794222766 +0200
+@@ -397,7 +397,7 @@
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, aSize);
+ aInstanceData.SetupPattern(pattern);
+
+- cairo_font_face_t* font = cairo_ft_font_face_create_for_pattern(pattern, nullptr, 0);
++ cairo_font_face_t* font = cairo_ft_font_face_create_for_pattern(pattern);
+ if (cairo_font_face_status(font) != CAIRO_STATUS_SUCCESS) {
+ gfxWarning() << "Failed creating Cairo font face for Fontconfig pattern";
+ FcPatternDestroy(pattern);