Package perl-Compress-Raw-Zlib build not isolated

[noahl]

When building the package 'perl-Compress-Raw-Zlib' on OS X 10.6.8, the builder tells me that my version of the zlib header file (1.2.7) doesn't match the version of zlib I have installed (1.2.3).

I think this means the build environment is being contaminated by the operating system's built-in libraries.

[shlevy]

Should hopefully be fixed as part of #1485

[shlevy]

This may not be a problem any more, but either way I'm no longer working on darwin stuff.

[mjhoy]

running nix-env -iA nixpkgs.perlPackages.CompressRawZlib appears to work for me (osx 10.9, nixos-unstable), although there is this curious output:

LD_RUN_PATH="/nix/store/0s5i71y9rjnbzxlmr6msdvf48qva5v99-zlib-1.2.8/lib" cc  -bundle -undefined dynamic_lookup -L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-Libsystem-osx-10.9.5/lib -fstack-protector Zlib.o  -o blib/arch/auto/Compress/Raw/Zlib/Zlib.bundle     \
   -L/nix/store/0s5i71y9rjnbzxlmr6msdvf48qva5v99-zlib-1.2.8/lib -lz     \

ld: warning: directory not found for option '-L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-Libsystem-osx-10.9.5/lib'