[CentOS] 32-bit compat-gcc on 64-bit CentOS?

[m.roth at 5-cent.us]

Alan M. Evans wrote:
> On Wed, 2011-03-30 at 13:27 -0400, m.roth at 5-cent.us wrote:
>> Alan M. Evans wrote:
>> > On Tue, 2011-03-29 at 17:43 -0500, Jeff wrote:
>> >> On Tue, Mar 29, 2011 at 5:35 PM, Alan M. Evans <ame1 at extratech.com>
>> >> wrote:
>> >> >
>> >> > The old server was Pentium-4 based and running CentOS-5. When I
>> >> > installed CentOS on the new machine, I used the 64-bit version,
>> >> > partly because that habit is almost automatic nowadays, and partly
because
>> >> > the new machine has 6GB of RAM, so 32-bit seemed not very
appropriate.
>> >> >
>> >> > Anyway, I've managed to configure every one of the old server's
>> >> > many functions to match on the new server but one: I need the 32-bit
>> >> > version of compat-gcc-34. (Or at least I need to be able to compile
>> >> > 32-bit binaries with the already available version.) I can't seem
>> to
>> >> > do this; am I just missing something?
>> <snip>
>> > I've tried the -m32 flag, along with "CC=gcc34" to actually cause it
>> > to use the compat compiler instead of the new one. The build process
>> > produces a lot of warnings that may or may not have been there before,
>> > then bails out with:
>> >
>> > make: *** No rule to make target
>> > `/usr/lib/gcc/i386-redhat-linux/3.4.6/include/stdarg.h', needed by
>> > `hostcom.o'.  Stop.
>> >
>> > On the old server, which I have limited access to, that file is owned
>> > by the compat-gcc-34 package. And the 64-bit version of this package is
>> > installed on the new server, so the directory is x86_64-redhat-linux
>> > instead of i386-redhat-linux.
>>
>> Got it: you need to install the 386 *sources*; you can do that without
>> hurting anything, and then the things you need will be where you expect
>> them to be.
>
> Excuse my ignorance: What *sources* are you talking about?

gcc headers, and maybe kernel headers and sources (depending on what
you're compiling). You've apparently only got the x86_64 sources.

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