NixOS/nixpkgs — pull request #1458 by wavewave (2014-01-04 14:29:33+00:00)
Title: poppler-glib.pc has ${includedir}/poppler in cflags

Programs/libraries that depends on poppler-glib often assumes the base directory of poppler-glib is under the base directory of poppler, and thus does not work for nixos setup.
By adding (poppler-glib base)/include/poppler in include path in cflags in pkg-config, this cures missing header problems. This was tested with haskell binding for poppler library.