diff -r 000000000000 -r 6474c204b198 gfx/cairo/ignore-rank0.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/cairo/ignore-rank0.patch	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+diff --git a/gfx/cairo/cairo/src/cairo-gstate.c b/gfx/cairo/cairo/src/cairo-gstate.c
+index 0439bcf..32a5c4b 100644
+--- a/gfx/cairo/cairo/src/cairo-gstate.c
++++ b/gfx/cairo/cairo/src/cairo-gstate.c
+@@ -1271,8 +1271,13 @@ _cairo_gstate_set_font_matrix (cairo_gstate_t	    *gstate,
+     if (memcmp (matrix, &gstate->font_matrix, sizeof (cairo_matrix_t)) == 0)
+ 	return CAIRO_STATUS_SUCCESS;
+ 
+-    if (! _cairo_matrix_is_invertible (matrix))
+-	return _cairo_error (CAIRO_STATUS_INVALID_MATRIX);
++    if (! _cairo_matrix_is_invertible (matrix)) {
++	/* rank 0 matrices are ok even though they are not invertible */
++	if (!(matrix->xx == 0. && matrix->xy == 0. &&
++	      matrix->yx == 0. && matrix->yy == 0.)) {
++	    return _cairo_error (CAIRO_STATUS_INVALID_MATRIX);
++	}
++    }
+ 
+     _cairo_gstate_unset_scaled_font (gstate);
+