travis: build stage1 rustc

Author: Jorge Aparicio

.travis.yml

@@ -1,24 +1,39 @@
-# Use something that's not 'ruby' so we don't set up things like
-# RVM/bundler/ruby and whatnot. Right now 'rust' as a language actually
-# downloads a rust/cargo snapshot, which we don't really want for building rust.
-language: c
+# needed to build LLVM
+language: cpp
+# GCC is too old to build LLVM
+compiler: clang
 sudo: false
 
-# The test suite is in general way too stressful for travis, especially in
-# terms of time limit and reliability. In the past we've tried to scale things
-# back to only build the stage1 compiler and run a subset of tests, but this
-# didn't end up panning out very well.
-#
-# As a result, we're just using travis to run `make tidy` now. It'll help
-# everyone find out about their trailing spaces early on!
+# build libcxx and libcxxabi, needed to build LLVM
+install:
+  - pushd .
+  - svn co --quiet http://llvm.org/svn/llvm-project/libcxx/trunk libcxx
+  - cd libcxx/lib && bash buildit && popd
+  - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/libcxx/lib
+  - export C_INCLUDE_PATH=$C_INCLUDE_PATH:$(pwd)/libcxx/include
+  - export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:$(pwd)/libcxx/include
+  - export LDFLAGS="$LDFLAGS -L$(pwd)/libcxx/lib"
+  - pushd .
+  - svn co --quiet http://llvm.org/svn/llvm-project/libcxxabi/trunk libcxxabi
+  - cd libcxxabi/lib && bash buildit && popd
+  - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/libcxxabi/lib
+  - export C_INCLUDE_PATH=$C_INCLUDE_PATH:$(pwd)/libcxxabi/include
+  - export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:$(pwd)/libcxxabi/include
+  - export LDFLAGS="$LDFLAGS -L$(pwd)/libcxxabi/lib"
+
 before_script:
-  - ./configure --llvm-root=path/to/nowhere
+  - mkdir -p build && cd build
+  - ../configure --enable-optimize --disable-optimize-tests --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=x86_64-unknown-linux-gnu
 script:
-  - make tidy
+  - make clean && make rustc-stage1
 
 notifications:
   email: false
 
 branches:
   only:
     - master
+
+cache:
+  directories:
+    - build