nixpkgs/pkgs/development/compilers/gcc/libstdc++-hook.sh

export NIX_CXXSTDLIB_COMPILE+=" -isystem $(echo -n @gcc@/include/c++/*) -isystem $(echo -n @gcc@/include/c++/*)/$(@gcc@/bin/gcc -dumpmachine)"
export NIX_CXXSTDLIB_LINK=" -stdlib=libstdc++"
Add space for NIX_CXXSTDLIB_COMPILE+=' ...' as NIX_CXXSTDLIB_COMPILE might not be empty. 2018-03-19 12:18:49 +00:00			`export NIX_CXXSTDLIB_COMPILE+=" -isystem $(echo -n @gcc@/include/c++/) -isystem $(echo -n @gcc@/include/c++/)/$(@gcc@/bin/gcc -dumpmachine)"`
clang-stdenv: use libstdcxxHook when targeting linux 2017-09-04 20:23:57 +01:00			`export NIX_CXXSTDLIB_LINK=" -stdlib=libstdc++"`