GCC generating invalid assembly

[Sam Lauber]

I compiled unexec.c from Emacs 21.3 with -O2, and I got the 
error from GNU as on line 1498:

Fatal error: C_EFCN symbol out of scope

I'm on the x86.  This only happens if all three of the 
following are satisfied

 1) -gcoff debugging information is being generated
 2) -funit-at-a-time is on
 3) -O is on

Turning off -O caused it to work fine.  Turning off 
-funit-at-a-time caused it to work fine.  Using a diffrent 
debugging information format caused it to work fine.  

Samuel Lauber

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