Date: Sun, 25 Nov 2001 21:22:59 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
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In-reply-to: <3C013F37.F451C083@phekda.freeserve.co.uk> (message from Richard
	Dawe on Sun, 25 Nov 2001 18:57:59 +0000)
Subject: Re: Building a profiled version of libc
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> Date: Sun, 25 Nov 2001 18:57:59 +0000
> From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
> 
> ./../../hostbin/dxegen.exe ./../../bin/emu387.dxe __emu_entry src/emu387.o
> id_emu.o src/emudummy.o -L../../lib c:/djgpp/lib/gcc-lib/djgpp/3.02/libgcc.a
> -lc c:/djgpp/lib/gcc-lib/djgpp/3.02/libgcc.a
> ld -X -S -r -o dxe__tmp.o -L./../../lib src/emu387.o id_emu.o
> src/emudummy.o -L../../lib c:/djgpp/lib/gcc-lib/djgpp/3.02/libgcc.a -lc
> c:/djgpp/lib/gcc-lib/djgpp/3.02/libgcc.a  -T dxe.ld
> ./../../lib/libc.a(_write.o)(.text+0x0):_write.c: multiple definition of
> `_write'
> src/emudummy.o(.text+0x10):emudummy.c: first defined here
> make.exe: *** [../../bin/emu387.dxe] Error 1

Does it help to make src/emudummy.o be the first object file in the
link command line, before dxe__tmp.o and emu387.o?

I think the problem is that some of the other object files calls
_write (indirectly) because of the -pg used to compile library
functions.  By the time the linker sees emudummy.o, it has already
pulled in _write from libc.a, so it barfs.  If you force it to use
the definitions from emudummy.o, it will never need the one from
libc.a.