[arch-commits] Commit in cairo/trunk (PKGBUILD libpng16.patch)

[Ionuț Mircea Bîru]

    Date: Saturday, April 27, 2013 @ 15:05:52
  Author: ioni
Revision: 183722

libpng 1.6 rebuild

Added:
  cairo/trunk/libpng16.patch
Modified:
  cairo/trunk/PKGBUILD

----------------+
 PKGBUILD       |   17 +++++++++++------
 libpng16.patch |   40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 6 deletions(-)

Modified: PKGBUILD
===================================================================
--- PKGBUILD	2013-04-27 13:02:07 UTC (rev 183721)
+++ PKGBUILD	2013-04-27 13:05:52 UTC (rev 183722)
@@ -4,7 +4,7 @@
 
 pkgname=cairo
 pkgver=1.12.14
-pkgrel=3
+pkgrel=4
 pkgdesc="Cairo vector graphics library"
 arch=(i686 x86_64)
 license=('LGPL' 'MPL')
@@ -17,11 +17,16 @@
 provides=('cairo-xcb')
 replaces=('cairo-xcb')
 options=('!libtool')
-source=(http://cairographics.org/releases/$pkgname-$pkgver.tar.xz)
-sha1sums=('9106ab09b2e7b9f90521b18dd4a7e9577eba6c15')
+source=(http://cairographics.org/releases/$pkgname-$pkgver.tar.xz
+        libpng16.patch)
+sha1sums=('9106ab09b2e7b9f90521b18dd4a7e9577eba6c15'
+          'c9911f185637d266ce1d2985bd6fb7d0df3d75b2')
 
 build() {
-  cd "$srcdir/$pkgname-$pkgver"
+  cd $pkgname-$pkgver
+
+  patch -Np1 -i ../libpng16.patch
+
   ./configure --prefix=/usr \
 	--sysconfdir=/etc \
 	--localstatedir=/var \
@@ -49,8 +54,8 @@
 #}
 
 package() {
-  depends=('libpng' 'libxrender' 'libxext' 'fontconfig' 'pixman>=0.28.0' 'glib2' 'mesa>=9.1' 'libgl' 'sh') 
+  depends=('libpng' 'libxrender' 'libxext' 'fontconfig' 'pixman>=0.28.0' 'glib2' 'mesa>=9.1' 'libgl' 'sh' 'lzo2')
 
-  cd "$srcdir/$pkgname-$pkgver"
+  cd $pkgname-$pkgver
   make DESTDIR="$pkgdir" install
 }

Added: libpng16.patch
===================================================================
--- libpng16.patch	                        (rev 0)
+++ libpng16.patch	2013-04-27 13:05:52 UTC (rev 183722)
@@ -0,0 +1,40 @@
+From 2dd2c826a5b367d32cf2d48ed69754795990c5db Mon Sep 17 00:00:00 2001
+From: Chris Wilson <chris at chris-wilson.co.uk>
+Date: Tue, 16 Apr 2013 09:58:56 +0000
+Subject: png: Avoid marking the surface as in error after a png warning
+
+It turns out that libpng will continue to load an image after throwing a
+warning, and that libpng16 now throws warnings for images that libpng15
+and earlier loaded without error. As we were happily loading those
+images into cairo surfaces before, we are therefore being overzealous
+in throwing an error now - so just squelch the warning.
+
+Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
+---
+diff --git a/src/cairo-png.c b/src/cairo-png.c
+index e74a4a8..068617d 100644
+--- a/src/cairo-png.c
++++ b/src/cairo-png.c
+@@ -149,13 +149,13 @@ static void
+ png_simple_warning_callback (png_structp png,
+ 	                     png_const_charp error_msg)
+ {
+-    cairo_status_t *error = png_get_error_ptr (png);
+-
+-    /* default to the most likely error */
+-    if (*error == CAIRO_STATUS_SUCCESS)
+-	*error = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+-
+-    /* png does not expect to abort and will try to tidy up after a warning */
++    /* png does not expect to abort and will try to tidy up and continue
++     * loading the image after a warning. So we also want to return the
++     * (incorrect?) surface.
++     *
++     * We use our own warning callback to squelch any attempts by libpng
++     * to write to stderr as we may not be in control of that output.
++     */
+ }
+ 
+ 
+--
+cgit v0.9.0.2-2-gbebe