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Date: Wed, 01 Jul 2009 06:19:40 +0300
From: Eli Zaretskii <eliz AT gnu DOT org>
Subject: Re: Emacs 23.0.95 pretest is available
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> From: Rugxulo <rugxulo AT gmail DOT com>
> Date: Tue, 30 Jun 2009 15:29:37 -0700 (PDT)
> 
> [ FreeDOS ] Mon 06-29-2009>make
> cd lib-src
> d:/gcc/bin/make.exe top_srcdir=e:/emacs version="23.0.95"
> make.exe[1]: Entering directory `e:/emacs/lib-src'
> make.exe[1]: *** No rule to make target `/test-distrib.c', needed by
> `test-distrib'.  Stop.
> make.exe[1]: Leaving directory `e:/emacs/lib-src'
> make.exe: *** [lib-src] Error 2

So it's clear that the problem is with lib-src/Makefile.

> FreeCOM is named COMMAND.COM for compatibility. I guess it gets set to
> "E:\EMACS\lib-src".

The above error message clearly shows that it gets set to an empty
string, that's how `/test-distrib.c' came into existence.  It should
have been `E:/EMACS/lib-src/test-distrib.c' instead.

> GCC 4.x really does optimize better (esp. C++) although not a
> billion times better or anything.

Code that's too optimized is a pain to debug.  I'm unwilling to trade
the ability to debug reasonably optimized code for another 6.5% of
speedup.