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bug#6039: Building Emacs BZR with GCC 4.5.0


From: Chong Yidong
Subject: bug#6039: Building Emacs BZR with GCC 4.5.0
Date: Tue, 27 Apr 2010 11:38:18 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.96 (gnu/linux)

Vladimir Lomov <address@hidden> writes:

> Seems that if I pass option '-fno-optimize-sibling-calls' to configure
> (CFLAGS="-O2 -fno-optimize-sibling-calls")
> then compiled emacs works
> (I run it under gdb with options '-Q -D' and without any options
> without segfault) but I don't know how this option affects the emacs.

Yep, see

  http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6031

It's a GCC bug.






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