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rustc: Loosen bootstrapping restrictions.

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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
This commit is contained in:
Moritz Ulrich 2016-11-28 11:21:12 +01:00
parent e36d243258
commit bfc187f23a
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6
pkgs/development/compilers/rust/rustc.nix
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@ -46,6 +46,12 @@ stdenv.mkDerivation {
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;