nixpkgs/pkgs/development/compilers/gcc/libstdc++-hook.sh
Matthew Bauer f9ed5e0089 libstdcxx: don’t set stdlib automatically
We don’t need to set -stdlib=libstdc++. This only works on Clang so it
is not good to set it globally. In addition, Clang knows to use
libstdc++ on Linux by default if no stdlib is set:

324f918438/lib/Driver/ToolChains/Linux.cpp (L456)

It’s a good policy to just leave off stdlib for now.

Fixes #29877.
2019-01-26 01:55:57 -05:00

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# See pkgs/build-support/setup-hooks/role.bash
getHostRole
export NIX_${role_pre}CXXSTDLIB_COMPILE+=" -isystem $(echo -n @gcc@/include/c++/*) -isystem $(echo -n @gcc@/include/c++/*)/$(@gcc@/bin/gcc -dumpmachine)"