Re: [Craig Metz <cmetz@inner.net>] libc/1184: Latest glibc +toolchain can't really build 386 lib

[Joel Klecker <jk@espy.org>]

At 19:35 -0400 1999-07-01, Horst von Brand wrote:
>Andreas Jaeger <aj@arthur.rhein-neckar.de> said:
>> We've received the append bug report.  Any ideas what's broken here?
>
>[CFLAGS -m386 on an i686 gives programs that SIGILL on i386]
>
>The problem is that -m386 schedules for a i386, but generates native code
>(i686 in the case discussed here); you need -march=i386 (generate code for
>i386, and schedule for it too). BTW, -m386 is deprecated.

I have tested it, it seems that only -mcpu=i386 will actually have 
the desired effect. With egcs 1.1.2 and gcc 2.95 as of 19990629 
configured for i486-linux, -march=i386 or -m386 still end up defining 
'i486', '__i486', and '__i486__'.
I don't actually have a library built this way, however, and would 
have no way to test it if I had.
-- 
Joel Klecker (aka Espy)                    Debian GNU/Linux Developer
<URL:mailto:jk@espy.org>                 <URL:mailto:espy@debian.org>
<URL:http://web.espy.org/>               <URL:http://www.debian.org/>