[Bug driver/48524] spec language does not cover switches with separated form

[zorry at gentoo dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48524

--- Comment #5 from Magnus Granberg <zorry at gentoo dot org> 2011-12-17 20:30:17 UTC ---
Created attachment 26122
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26122
switches with separated form -D and -U

This patch make the -D and -U switches with separated form work in the spec
language. Tested on Gentoo with the spec as in comment 2.