Merge pull request #355 from cowboyd/limit-specs-to-c-and-clang

only run C spec compiled with Clang

Author: cowboyd

.travis.yml

@@ -1,14 +1,34 @@
-cache: bundler
+#cache: bundler
 rvm:
   - 2.1.0
   - 2.0.0
   - 1.9.3
   - 1.9.2
   - 1.8.7
   - rbx-2.2.3
+matrix:
+  allow_failures:
+    - rvm: 1.9.3
+    - rvm: 1.9.2
+    - rvm: 1.8.7
+    - rvm: rbx-2.2.3
+env:
+  - CXX=g++-4.8
+  - CXX=clang++
 notifications:
   recipients:
     - cowboyd@thefrontside.net
 before_install:
   - gem update --system 2.1.11
-script: bundle exec rake compile spec
+script:
+  - bundle exec rake compile
+  - bundle exec rspec spec/c
+sudo: false
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - gcc-4.8
+    - g++-4.8
+    - clang

ext/v8/extconf.rb

@@ -1,4 +1,5 @@
 require 'mkmf'
+cxx = RbConfig::MAKEFILE_CONFIG['CXX'] = ENV['CXX'] if ENV['CXX']
 
 have_library('pthread')
 have_library('objc') if RUBY_PLATFORM =~ /darwin/
@@ -9,7 +10,9 @@
 $CPPFLAGS += " -fPIC" unless $CPPFLAGS.split.include? "-rdynamic" or RUBY_PLATFORM =~ /darwin/
 $CPPFLAGS += " -std=c++11"
 
-$LDFLAGS += " -stdlib=libstdc++"
+if cxx =~ /clang/
+   $LDFLAGS += " -stdlib=libstdc++"
+end
 
 CONFIG['LDSHARED'] = '$(CXX) -shared' unless RUBY_PLATFORM =~ /darwin/
 if CONFIG['warnflags']