NixOS/nixpkgs — pull request #1518 by wizeman (2014-01-14 00:36:33+00:00)
Title: gcc build fix attempt

Specifically, I am trying to fix the following error seen on Hydra:

../../gcc-4.7.3/gcc/gengtype-lex.c:1:21: fatal error: bconfig.h: No such file or directory

The patch is taken from gcc's SVN revision 193691.