Hello, I recently played with building Thunderbird 3.0b1 from source (it works pretty well, btw). I was playing with some of the options to enable using the system versions of a number of libraries, rather than relying upon statically linking them into the project.
One thing that I noticed was the APNG patch from here: * http://littlesvr.ca/apng/. This seems to be expected by Thunderbird and is part of the latest source tree. Mozilla has been maintaining a format spec here: * https://wiki.mozilla.org/APNG_Specification Sadly the patch has lagged behind the latest releases of libpng. I merged the patch into the latest version (1.2.33) that we use, and have made an appropriate change to the port files of graphics/png. I think that APNG support from libpng may be useful in other software as well. I am attaching the patch, to apply in /usr/ports, for anyone to test. So far it doesn't seem to regress anything for me, and I can use thunderbird 3 with --with-system-png=/usr/local in my .mozconfig. I'd like to see some other testers, and get a comment from the graphics/png maintainer. -- Coleman Kane
--- graphics/png/Makefile
+++ graphics/png/Makefile
@@ -7,6 +7,7 @@
PORTNAME= png
PORTVERSION= 1.2.33
+PORTREVISION= 1
CATEGORIES= graphics
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE}
MASTER_SITE_SUBDIR= lib${PORTNAME}
@@ -34,8 +35,15 @@ MAN3= libpng.3 libpngpf.3
MAN5= png.5
MANCOMPRESSED= maybe
+OPTIONS= APNG "Enable APNG Support" on
+
.include <bsd.port.pre.mk>
+.if defined(WITH_APNG)
+PATCH_SITES= http://people.FreeBSD.org/~cokane/patches/
+PATCHFILES+= libpng-apng.patch
+.endif
+
post-extract:
# Please don't delete the following line - this link used by ghostscript* ports
@${LN} -sf ${WRKSRC} ${WRKDIR}/libpng
--- graphics/png/distinfo
+++ graphics/png/distinfo
@@ -1,3 +1,6 @@
MD5 (libpng-1.2.33.tar.bz2) = 0532c28ba1b17ee2095ad50731c2c75c
SHA256 (libpng-1.2.33.tar.bz2) = af3a8150fedaf3ea561c10c59fa828f71f732ade06e3f3d13fa453629c470800
SIZE (libpng-1.2.33.tar.bz2) = 651555
+MD5 (libpng-apng.patch) = fb1696d9e16d7813a1e7410ad1649612
+SHA256 (libpng-apng.patch) = f406d7899aeac2d3e634b14b98dbb53f2b671265d711f564eaf380ae37048fbc
+SIZE (libpng-apng.patch) = 54713
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