------- Comment #2 from bursig at gmail dot com 2008-05-20 15:49 ------- (In reply to comment #1) > -H will tell you that. > Ok that will work but will automatically drop tons of info into build output.
IMHO better will be extension in "-Winvalid-pch" flag and printing info about used pch.h.gch when gcc detect another pch.gch which can't be used. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36273