qpkg: Add note about LIBRARY_PATH
qpkg: Add note about LIBRARY_PATH

https://stackoverflow.com/questions/47248287/priority-of-library-path-with-custom-gcc-installations
https://stackoverflow.com/questions/15836423/gcc-how-to-add-before-the-default-linker-search-path-by-default-library-path-no

This is perhaps one of GCC's most annoying flaws. Clang copied this flaw
precisely for compatability.

skeeto/dotfiles,skeeto/dotfiles