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Re: [discuss] Re: --with-sysroot required when building 32->64 bit crosstoolchain? (was: building a cross-compiler is hard)

On Wed, Jan 07, 2004 at 05:56:50PM -0800, Daniel Kegel wrote:
> Daniel Jacobowitz wrote:
> >On Wed, Jan 07, 2004 at 02:54:36PM -0800, Daniel Kegel wrote:
> >
> >>so I guess ld doesn't obey -L for that file?!
> >
> >
> >Yes.  It doesn't matter that it's a 32/64-bit cross environment, it's
> >still a cross environment to a hosted target.  DT_NEEDED are only
> >searched via -rpath-link and SEARCH_DIR.
> It matters that it's a 32/64 bit cross environment because otherwise
> I wouldn't need --with-sysroot...
> >You can use --with-sysroot for binutils without using it for GCC.  It's
> >not necessarily a good idea though.
> I'm trying it throughout.  It's hard to figure out how to use, though.
> I had been jimmying things so there is no /usr, i.e. so all libraries are
> in $PREFIX/lib, all includes in $PREFIX/include, as is customary when
> building cross-compilers.  But I get the feeling that --with-sysroot wants
> me to do things the LSB way, with a split between /lib and /usr/lib,
> so I'm giving that a shot.  Needless to say, this is painful.  I'm
> currently stuck building crtbegin.o because for some reason
> xgcc is being told to look in $PREFIX/include... gotta figure out
> where I missed adding a /usr ... grumble.

Try a symlink usr -> . then?

Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

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