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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: (elisp)Numbers
Date: Sat, 25 Oct 2003 18:26:38 -0400
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    Here's the code I see with "gcc -E -O2" on fencepost (I reformatted it
    for better readability):

	extern __inline double sqrt ( double __x) 
	{ 
	  register double __result;
	  __asm __volatile__ ( "fsqrt" : "=t" (__result) : "0" (__x) );
	   return __result; 
	}

1. where does this code come from?  which file in which package?

2. i see that my CFLAGS setting to turn off inlining got lost
when i reran configure.  so i put that back in and recompiled,
and it went away.