Issue #1274 - Part 1: Adopt the cairo version as our own.

- Move header licensing from tri-license to MPL 2.0. MPL-compatible
  other licensing has been retained where originally present.
- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.
- Remove incomplete cairo release notes (only went up to 1.6.4 anyway).
- Rewrite COPYING to indicate the current state of the library in tree.

1 files changed, 0 insertions, 20 deletions

diff --git a/gfx/cairo/ignore-rank0.patch b/gfx/cairo/ignore-rank0.patch
deleted file mode 100644
index 7e20f66fb..000000000
--- a/gfx/cairo/ignore-rank0.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-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);
-