Build failing on OSX #28
Description
rustc 0.13.0-nightly (5484d6f6d 2014-12-02 00:22:00 +0000)
$gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix
Failed to run custom build command for `time v0.1.0 (file:///Users/sven/rust/time)`
Process didn't exit successfully: `/Users/sven/rust/time/target/build/time-0835b624bcc96b1e/build-script-build` (status=101)
--- stderr
task '<main>' panicked at 'Environment variable 'HOST' is unset', /Users/rustbuild/src/rust-buildbot/slave/nightly-mac/build/src/libcore/option.rs:325