[Bug bootstrap/44959] [4.6 Regression] bootstrap failed at Comparing stages 2 and 3

[htl10 at users dot sourceforge.net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44959

--- Comment #30 from Hin-Tak Leung <htl10 at users dot sourceforge.net> 2012-09-01 08:18:06 UTC ---
I commented out gcc-4.7.1/config/bootstrap-debug.mk :

#STAGE2_CFLAGS += -gtoggle

and 4.7.1 passed.

this seems likely the cause - -gtoogle was introduced in 4.5.x. I am going to
try going backwards to see whether this will have the older versions pass.

Two curiosity:
- how did I get 4.6.1 to pass, once?
- why Rainer's system isn't similiarly affected?