[Bug pch/53880] [4.8 Regression] compile time regression when generating precompiled headers for boost

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53880

--- Comment #29 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-30 
15:04:18 UTC ---
Created attachment 27897
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27897
Unswitched gtype-desc.c at r189965

Manually "unswitching" gt_pch_p_9line_maps gives me acceptable compile times.