http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52974
--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-15 15:31:46 UTC --- Created attachment 27160 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27160 patch This patch implements the shortening in line-map.c. It seems more general fix than touching the default include paths. If it looks ok to you, I will submit it properly.