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Date: Tue, 9 May 2006 14:22:06 -0400
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From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <20060509173020.GA12724@darwin.sfbr.org> (message from JT
	Williams on Tue, 9 May 2006 12:30:21 -0500)
Subject: Re: incompatible implicit declaration of built-in function...
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> I searched the gcc docs and added '-fno-builtin' to the gcc
> invocation to suppress the use of builtin prototypes.

That doesn't remove the prototypes, that removes the *builtins* too.
Thus, gcc will always call the library function, even if it could have
replaced the call with a few opcodes.

It's far better to include the right headers and get the best
performance gcc can provide.