Mac install fails with Homebrew gcc

[ilkka]

I just happened to notice that when GCC is installed from Homebrew and therefore GCC's c++ is in $PATH before the system clang c++, installation fails with:

...
  CC(target) Release/obj.target/oniguruma/deps/onig/enc/utf32_be.o
  CC(target) Release/obj.target/oniguruma/deps/onig/enc/utf32_le.o
  CC(target) Release/obj.target/oniguruma/deps/onig/enc/utf8.o
  LIBTOOL-STATIC Release/oniguruma.a
  CXX(target) Release/obj.target/onig_scanner/src/onig-cache.o
c++: error: unrecognized command line option '-stdlib=libc++'
make: *** [Release/obj.target/onig_scanner/src/onig-cache.o] Error 1

[ethansherriff]

I use MacPorts, but running CXX=clang++ npm install oniguruma fixed this (and a lot of CoreFoundation related errors, too) for me.