nixpkgs/pkgs/development/compilers/rust/rustc.nix
Moritz Ulrich bfc187f23a
rustc: Loosen bootstrapping restrictions.
Newer nightlies check a new environment variable that if set will loosen
restrictions on which compiler version can be used for bootstrapping.

Upstream issue is at https://github.com/rust-lang/rust/pull/37265
2016-11-28 11:21:12 +01:00

154 lines
5.2 KiB
Nix

{ stdenv, fetchurl, fetchgit, fetchzip, file, python2, tzdata, procps
, llvm, jemalloc, ncurses, darwin, binutils, rustPlatform, git, cmake, curl
, isRelease ? false
, shortVersion
, forceBundledLLVM ? false
, srcSha, srcRev
, configureFlags ? []
, patches
, targets
, targetPatches
, targetToolchains
} @ args:
let
inherit (stdenv.lib) optional optionalString;
version = if isRelease then
"${shortVersion}"
else
"${shortVersion}-g${builtins.substring 0 7 srcRev}";
name = "rustc-${version}";
procps = if stdenv.isDarwin then darwin.ps else args.procps;
llvmShared = llvm.override { enableSharedLibraries = true; };
target = builtins.replaceStrings [" "] [","] (builtins.toString targets);
meta = with stdenv.lib; {
homepage = http://www.rust-lang.org/;
description = "A safe, concurrent, practical language";
maintainers = with maintainers; [ madjar cstrahan wizeman globin havvy wkennington retrry ];
license = [ licenses.mit licenses.asl20 ];
platforms = platforms.linux ++ platforms.darwin;
};
in
stdenv.mkDerivation {
inherit name;
inherit version;
inherit meta;
__impureHostDeps = [ "/usr/lib/libedit.3.dylib" ];
NIX_LDFLAGS = optionalString stdenv.isDarwin "-rpath ${llvmShared}/lib";
# Enable nightly features in stable compiles (used for
# bootstrapping, see https://github.com/rust-lang/rust/pull/37265).
# This loosens the hard restrictions on bootstrapping-compiler
# versions.
RUSTC_BOOTSTRAP = "1";
src = fetchgit {
url = https://github.com/rust-lang/rust;
rev = srcRev;
sha256 = srcSha;
};
# We need rust to build rust. If we don't provide it, configure will try to download it.
configureFlags = configureFlags
++ [ "--enable-local-rust" "--local-rust-root=${rustPlatform.rust.rustc}" "--enable-rpath" ]
# ++ [ "--jemalloc-root=${jemalloc}/lib"
++ [ "--default-linker=${stdenv.cc}/bin/cc" "--default-ar=${binutils.out}/bin/ar" ]
++ optional (stdenv.cc.cc ? isClang) "--enable-clang"
++ optional (targets != []) "--target=${target}"
++ optional (!forceBundledLLVM) "--llvm-root=${llvmShared}";
patches = patches ++ targetPatches;
passthru.target = target;
postPatch = ''
substituteInPlace src/rust-installer/gen-install-script.sh \
--replace /bin/echo "$(type -P echo)"
substituteInPlace src/rust-installer/gen-installer.sh \
--replace /bin/echo "$(type -P echo)"
# Workaround for NixOS/nixpkgs#8676
substituteInPlace mk/rustllvm.mk \
--replace "\$\$(subst /,//," "\$\$(subst /,/,"
# Fix dynamic linking against llvm
${optionalString (!forceBundledLLVM) ''sed -i 's/, kind = \\"static\\"//g' src/etc/mklldeps.py''}
# Fix the configure script to not require curl as we won't use it
sed -i configure \
-e '/probe_need CFG_CURL curl/d'
# Fix the use of jemalloc prefixes which our jemalloc doesn't have
# TODO: reenable if we can figure out how to get our jemalloc to work
#[ -f src/liballoc_jemalloc/lib.rs ] && sed -i 's,je_,,g' src/liballoc_jemalloc/lib.rs
#[ -f src/liballoc/heap.rs ] && sed -i 's,je_,,g' src/liballoc/heap.rs # Remove for 1.4.0+
# Disable fragile linker-output-non-utf8 test
rm -vr src/test/run-make/linker-output-non-utf8 || true
# Remove test targeted at LLVM 3.9 - https://github.com/rust-lang/rust/issues/36835
rm -vr src/test/run-pass/issue-36023.rs || true
# Disable test getting stuck on hydra - possible fix:
# https://reviews.llvm.org/rL281650
rm -vr src/test/run-pass/issue-36474.rs || true
# Useful debugging parameter
# export VERBOSE=1
'' +
# In src/compiler-rt/cmake/config-ix.cmake, the cmake build falls
# back to darwin 10.4. This causes the OS name to be recorded as
# "10.4" rather than the expected "osx". But mk/rt.mk expects the
# built library name to have an "_osx" suffix on darwin.
optionalString stdenv.isDarwin ''
substituteInPlace mk/rt.mk --replace "_osx" "_10.4"
'';
preConfigure = ''
# Needed flags as the upstream configure script has a broken prefix substitution
configureFlagsArray+=("--datadir=$out/share")
configureFlagsArray+=("--infodir=$out/share/info")
'';
# rustc unfortunately need cmake for compiling llvm-rt but doesn't
# use it for the normal build. This disables cmake in Nix.
dontUseCmakeConfigure = true;
# ps is needed for one of the test cases
nativeBuildInputs = [ file python2 procps rustPlatform.rust.rustc git cmake ];
buildInputs = [ ncurses ] ++ targetToolchains
++ optional (!forceBundledLLVM) llvmShared;
# https://github.com/rust-lang/rust/issues/30181
# enableParallelBuilding = false; # missing files during linking, occasionally
outputs = [ "out" "doc" ];
setOutputFlags = false;
preCheck = ''
export TZDIR=${tzdata}/share/zoneinfo
'' +
# Ensure TMPDIR is set, and disable a test that removing the HOME
# variable from the environment falls back to another home
# directory.
optionalString stdenv.isDarwin ''
export TMPDIR=/tmp
sed -i '28s/home_dir().is_some()/true/' ./src/test/run-pass/env-home-dir.rs
'';
# Disable doCheck on Darwin to work around upstream issue
doCheck = true;
dontSetConfigureCross = true;
}