pyrox.dev
1{ pkgs, lib, emscripten, python3 }:
2
3argsFun:
4
5let
6 wrapDerivation = f:
7 pkgs.stdenv.mkDerivation (finalAttrs:
8 f (lib.toFunction argsFun finalAttrs)
9 );
10in
11wrapDerivation (
12{ buildInputs ? [], nativeBuildInputs ? []
13
14, enableParallelBuilding ? true
15
16, meta ? {}, ... } @ args:
17
18 args //
19 {
20
21 pname = "emscripten-${lib.getName args}";
22 version = lib.getVersion args;
23 buildInputs = [ emscripten python3 ] ++ buildInputs;
24 nativeBuildInputs = [ emscripten python3 ] ++ nativeBuildInputs;
25
26 # fake conftest results with emscripten's python magic
27 EMCONFIGURE_JS=2;
28
29 # removes archive indices
30 dontStrip = args.dontStrip or true;
31
32 configurePhase = args.configurePhase or ''
33 # FIXME: Some tests require writing at $HOME
34 HOME=$TMPDIR
35 runHook preConfigure
36
37 emconfigure ./configure --prefix=$out
38
39 mkdir -p .emscriptencache
40 export EM_CACHE=$(pwd)/.emscriptencache
41
42 runHook postConfigure
43 '';
44
45 buildPhase = args.buildPhase or ''
46 runHook preBuild
47
48 HOME=$TMPDIR
49
50 emmake make
51
52 runHook postBuild
53 '';
54
55 doCheck = true;
56
57 checkPhase = args.checkPhase or ''
58 runHook preCheck
59
60 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"
61 echo ""
62 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."
63 echo " -> https://github.com/kripken/emscripten/wiki/Linking"
64 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!"
65 exit 1
66
67 runHook postCheck
68 '';
69
70 enableParallelBuilding = args.enableParallelBuilding or true;
71
72 meta = {
73 # Add default meta information
74 platforms = lib.platforms.all;
75 # Do not build this automatically
76 hydraPlatforms = [];
77 } // meta // {
78 # add an extra maintainer to every package
79 maintainers = (meta.maintainers or []) ++
80 [ lib.maintainers.qknight ];
81 };
82})