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{ stdenv
, fetch
, fetchpatch
, perl
, groff
, cmake
, python2
, libffi
, libbfd
, libxml2
, ncurses
, version
, zlib
, compiler-rt_src
, libcxxabi
, debugVersion ? false
, enableSharedLibraries ? !stdenv.isDarwin
}:
let
src = fetch "llvm" "1masakdp9g2dan1yrazg7md5am2vacbkb3nahb3dchpc1knr8xxy";
in stdenv.mkDerivation rec {
name = "llvm-${version}";
unpackPhase = ''
unpackFile ${src}
mv llvm-${version}.src llvm
sourceRoot=$PWD/llvm
unpackFile ${compiler-rt_src}
mv compiler-rt-* $sourceRoot/projects/compiler-rt
'';
buildInputs = [ perl groff cmake libxml2 python2 libffi ]
++ stdenv.lib.optional stdenv.isDarwin libcxxabi;
propagatedBuildInputs = [ ncurses zlib ];
# The goal here is to disable LLVM bindings (currently go and ocaml) regardless
# of whether the impure CMake search sheananigans find the compilers in global
# paths. This mostly exists because sandbox builds don't work very well on Darwin
# and sometimes you get weird behavior if CMake finds go in your system path.
# This would be far prettier if there were a CMake option to just disable bindings
# but from what I can tell, there isn't such a thing. The file in question only
# contains `if(WIN32)` conditions to check whether to disable bindings, so making
# those always succeed has the net effect of disabling all bindings.
prePatch = ''
substituteInPlace cmake/config-ix.cmake --replace "if(WIN32)" "if(1)"
''
+ stdenv.lib.optionalString (stdenv ? glibc) ''
(
cd projects/compiler-rt
patch -p1 < ${
fetchpatch {
name = "sigaltstack.patch"; # for glibc-2.26
url = https://github.com/llvm-mirror/compiler-rt/commit/8a5e425a68d.diff;
sha256 = "0h4y5vl74qaa7dl54b1fcyqalvlpd8zban2d1jxfkxpzyi7m8ifi";
}
}
)
'';
# hacky fix: created binaries need to be run before installation
preBuild = ''
mkdir -p $out/
ln -sv $PWD/lib $out
'';
patches = stdenv.lib.optionals (!stdenv.isDarwin) [
# llvm-config --libfiles returns (non-existing) static libs
../fix-llvm-config.patch
];
cmakeFlags = with stdenv; [
"-DCMAKE_BUILD_TYPE=${if debugVersion then "Debug" else "Release"}"
"-DLLVM_INSTALL_UTILS=ON" # Needed by rustc
"-DLLVM_BUILD_TESTS=ON"
"-DLLVM_ENABLE_FFI=ON"
"-DLLVM_ENABLE_RTTI=ON"
] ++ stdenv.lib.optional enableSharedLibraries
"-DBUILD_SHARED_LIBS=ON"
++ stdenv.lib.optional (!isDarwin)
"-DLLVM_BINUTILS_INCDIR=${libbfd.dev}/include"
++ stdenv.lib.optionals ( isDarwin) [
"-DLLVM_ENABLE_LIBCXX=ON"
"-DCAN_TARGET_i386=false"
];
NIX_LDFLAGS = "-lpthread"; # no idea what's the problem
postBuild = ''
rm -fR $out
paxmark m bin/{lli,llvm-rtdyld}
'';
enableParallelBuilding = true;
passthru.src = src;
meta = {
description = "Collection of modular and reusable compiler and toolchain technologies";
homepage = http://llvm.org/;
license = stdenv.lib.licenses.ncsa;
maintainers = with stdenv.lib.maintainers; [ lovek323 raskin viric ];
platforms = stdenv.lib.platforms.all;
};
}
|
