Re: [uml-devel] Re: pcap cross-linking [PATCH]

[Blaisorblade <blaisorblade@yahoo.it>]

On Tuesday 20 December 2005 17:25, Antoine Martin wrote:
> > > > $ gcc -print-file-name=libpcap.a
> > > > /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.4/../../../../lib64/libpcap.a
> > > > $ gcc -m32 -print-file-name=libpcap.a
> > > > /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.4/../../../../lib32/libpcap.a
> > >
> > > Works for me (tm) too.
> > >
> > > Can this be merged? (I can't see any reason not to now)
> >
> > Wait a moment - CFLAGS is supposed to contain -m32:
> >
> > arch/um/Makefile-i386:
> >
> > CFLAGS                  += $(call cc-option,-m32)
> >
> > so there is something strange going on - but have you tested without this
> > patch _after_ symlinking libraries into /usr/lib32?
>
> Yes, that works and in fact the patch solved nothing: I forgot to remove
> the library from /usr/lib32 and that's what it used - DOH.
> # gcc -m32 -print-file-name=libpcap.a
> /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.4/../../../libpcap.a
> I thought the '-m32' would force it to try to find the 32 bit version?

-m32 means "compile a 32bit program". Gcc is smart enough to correct the 
libraries search path. Gentoo is not smart enough to put emulation libraries 
in /usr/lib32.

Btw, which emul- package did you install to get libpcap? Also there's almost 
no .a file in /emul - they're intended to be used for .so (dynamic) libraries 
only, I guess - you sneaked it there, right?

However, the Gentoo bug is still there, and you followed its example in 
putting your libpcap.a.

I'm discussing the issue at:

http://bugs.gentoo.org/show_bug.cgi?id=100923

-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

	

	
		
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