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- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.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, 46 deletions

diff --git a/gfx/cairo/lround-c99-only.patch b/gfx/cairo/lround-c99-only.patch
deleted file mode 100644
index 9002235f0..000000000
--- a/gfx/cairo/lround-c99-only.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-Only use lround in C99 programs.
-
-diff --git a/gfx/cairo/cairo/src/cairo-misc.c b/gfx/cairo/cairo/src/cairo-misc.c
---- a/gfx/cairo/cairo/src/cairo-misc.c
-+++ b/gfx/cairo/cairo/src/cairo-misc.c
-@@ -478,17 +478,17 @@ _cairo_operator_bounded_by_either (cairo
-     case CAIRO_OPERATOR_IN:
-     case CAIRO_OPERATOR_DEST_IN:
-     case CAIRO_OPERATOR_DEST_ATOP:
- 	return 0;
-     }
- 
- }
- 
--#if DISABLE_SOME_FLOATING_POINT
-+#if DISABLE_SOME_FLOATING_POINT || __STDC_VERSION__ < 199901L
- /* This function is identical to the C99 function lround(), except that it
-  * performs arithmetic rounding (floor(d + .5) instead of away-from-zero rounding) and
-  * has a valid input range of (INT_MIN, INT_MAX] instead of
-  * [INT_MIN, INT_MAX]. It is much faster on both x86 and FPU-less systems
-  * than other commonly used methods for rounding (lround, round, rint, lrint
-  * or float (d + 0.5)).
-  *
-  * The reason why this function is much faster on x86 than other
-diff --git a/gfx/cairo/cairo/src/cairoint.h b/gfx/cairo/cairo/src/cairoint.h
---- a/gfx/cairo/cairo/src/cairoint.h
-+++ b/gfx/cairo/cairo/src/cairoint.h
-@@ -969,17 +969,17 @@ _cairo_restrict_value (double value, dou
-  * away from 0. _cairo_round rounds halfway cases toward negative infinity.
-  * This matches the rounding behaviour of _cairo_lround. */
- static inline double cairo_const
- _cairo_round (double r)
- {
-     return floor (r + .5);
- }
- 
--#if DISABLE_SOME_FLOATING_POINT
-+#if DISABLE_SOME_FLOATING_POINT || __STDC_VERSION__ < 199901L
- cairo_private int
- _cairo_lround (double d) cairo_const;
- #else
- #define _cairo_lround lround
- #endif
- 
- cairo_private uint16_t
- _cairo_half_from_float (float f) cairo_const;