forked from mirrors/nixpkgs
e78b013fe3
I made sure no rebuild will happen because of this. Unfortunately this meant merging attrsets instead of just using an optionalString for postPatch
39 lines
1.1 KiB
Nix
39 lines
1.1 KiB
Nix
{ stdenv, fetchurl, zlib, apngSupport ? false}:
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assert zlib != null;
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let whenPatched = stdenv.lib.optionalString apngSupport;
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version = "1.6.2";
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patch_src = fetchurl {
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url = "mirror://sourceforge/libpng-apng/libpng-${version}-apng.patch.gz";
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sha256 = "0fy7p197ilr9phwqqk9h91s1mc28r6gj0w2ilrw5liagi71z75j1";
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};
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in stdenv.mkDerivation (rec {
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name = "libpng" + whenPatched "-apng" + "-${version}";
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src = fetchurl {
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url = "mirror://sourceforge/libpng/libpng-${version}.tar.xz";
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sha256 = "1pljkqjqgyz8c32w8fipd9f0v2gcyhah2ypp0h7ya1r1q85sk5qw";
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};
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propagatedBuildInputs = [ zlib ];
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doCheck = true;
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passthru = { inherit zlib; };
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meta = {
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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 = stdenv.lib.platforms.all;
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};
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} // stdenv.lib.optionalAttrs apngSupport {
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postPatch = ''
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gunzip < ${patch_src} | patch -Np1
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'';
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})
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