rubinius/rubinius — pull request #3127 by heftig (2014-09-06 23:34:51+00:00)
Title: Apply std=c++11 only to the VM build

Ran into a problem backporting the LLVM 3.5 support to 2.2.10: Melbourne 2.1.0.0 is not C++11-compatible, and adding -std=c++11 to the system_cxxflags also causes it to apply to gems.