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38 lines
1.1 KiB
Nix
38 lines
1.1 KiB
Nix
{ stdenv, fetchurl, zlib, apngSupport ? false }:
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assert zlib != null;
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let
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version = "1.6.4";
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sha256 = "15pqany43q2hzaxqn84p9dba071xmvqi8h1bhnjxnxdf3g64zayg";
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patch_src = fetchurl { # not released yet, hopefully OK
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url = "mirror://sourceforge/libpng-apng/libpng-1.6.3-apng.patch.gz";
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sha256 = "0fjnb6cgbj2c7ggl0qzcnliml2ylrjxzigp89vw0hxq221k5mlsx";
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};
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whenPatched = stdenv.lib.optionalString apngSupport;
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in stdenv.mkDerivation rec {
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name = "libpng" + whenPatched "-apng" + "-${version}";
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src = fetchurl {
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url = "mirror://sourceforge/libpng/libpng-${version}.tar.xz";
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inherit sha256;
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};
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postPatch = whenPatched "gunzip < ${patch_src} | patch -Np1";
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propagatedBuildInputs = [ zlib ];
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doCheck = true;
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passthru = { inherit zlib; };
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meta = with stdenv.lib; {
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description = "The official reference implementation for the PNG file format" + whenPatched " with animation patch";
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homepage = http://www.libpng.org/pub/png/libpng.html;
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license = "free-non-copyleft"; # http://www.libpng.org/pub/png/src/libpng-LICENSE.txt
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platforms = platforms.all;
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maintainers = [ maintainers.vcunat ];
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};
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}
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