74 lines
2 KiB
Nix
74 lines
2 KiB
Nix
{ pkgs, lib, emscripten, python3 }:
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{ buildInputs ? [], nativeBuildInputs ? []
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, enableParallelBuilding ? true
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, meta ? {}, ... } @ args:
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pkgs.stdenv.mkDerivation (
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args //
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{
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pname = "emscripten-${lib.getName args}";
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version = lib.getVersion args;
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buildInputs = [ emscripten python3 ] ++ buildInputs;
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nativeBuildInputs = [ emscripten python3 ] ++ nativeBuildInputs;
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# fake conftest results with emscripten's python magic
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EMCONFIGURE_JS=2;
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# removes archive indices
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dontStrip = args.dontStrip or true;
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configurePhase = args.configurePhase or ''
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# FIXME: Some tests require writing at $HOME
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HOME=$TMPDIR
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runHook preConfigure
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emconfigure ./configure --prefix=$out
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mkdir -p .emscriptencache
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export EM_CACHE=$(pwd)/.emscriptencache
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runHook postConfigure
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'';
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buildPhase = args.buildPhase or ''
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runHook preBuild
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HOME=$TMPDIR
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emmake make
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runHook postBuild
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'';
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doCheck = true;
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checkPhase = args.checkPhase or ''
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runHook preCheck
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echo "Please provide a test for your emscripten based library/tool, see libxml2 as an exmple on how to use emcc/node to verify your build"
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echo ""
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echo "In normal C 'unresolved symbols' would yield an error and a breake of execution. In contrast, in emscripten they are only a warning which is ok given that emscripten assumptions about shared libraries."
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echo " -> https://github.com/kripken/emscripten/wiki/Linking"
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echo "So just assume the dependencies were built using hydra, then YOU WILL NEVER see the warning and your code depending on a library will always fail!"
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exit 1
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runHook postCheck
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'';
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enableParallelBuilding = args.enableParallelBuilding or true;
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meta = {
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# Add default meta information
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platforms = lib.platforms.all;
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# Do not build this automatically
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hydraPlatforms = [];
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} // meta // {
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# add an extra maintainer to every package
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maintainers = (meta.maintainers or []) ++
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[ lib.maintainers.qknight ];
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};
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})
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