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{ stdenv, buildPackages, fetchFromGitHub, lib }:
stdenv.mkDerivation {
pname = "wasilibc";
version = "unstable-2021-09-23";
src = buildPackages.fetchFromGitHub {
owner = "WebAssembly";
repo = "wasi-libc";
rev = "ad5133410f66b93a2381db5b542aad5e0964db96";
hash = "sha256-RiIClVXrb18jF9qCt+5iALHPCZKYcnad7JsILHBV0pA=";
fetchSubmodules = true;
};
# clang-13: error: argument unused during compilation: '-rtlib=compiler-rt' [-Werror,-Wunused-command-line-argument]
postPatch = ''
substituteInPlace Makefile \
--replace "-Werror" ""
'';
preBuild = ''
export NIX_CFLAGS_COMPILE="-I$(pwd)/sysroot/include $NIX_CFLAGS_COMPILE"
'';
makeFlags = [
"WASM_CC=${stdenv.cc.targetPrefix}cc"
"WASM_NM=${stdenv.cc.targetPrefix}nm"
"WASM_AR=${stdenv.cc.targetPrefix}ar"
"INSTALL_DIR=${placeholder "out"}"
];
enableParallelBuilding = true;
postInstall = ''
mv $out/lib/*/* $out/lib
ln -s $out/share/wasm32-wasi/undefined-symbols.txt $out/lib/wasi.imports
'';
meta = with lib; {
description = "WASI libc implementation for WebAssembly";
homepage = "https://wasi.dev";
platforms = platforms.wasi;
maintainers = with maintainers; [ matthewbauer ];
license = with licenses; [ asl20 mit llvm-exception ];
};
}
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