Pointing GCC/GNU ld to different libc.so file

[Daniel Jacobowitz]

On Fri, Apr 18, 2003 at 04:33:13PM -0500, Rocha Iran-QIR001 wrote:
> Hi,
> 
> I am using GCC 3.2.3 and GNU Binutils 2.13 on a sparc-sun-solaris2.6 machine
> to build code for ia64-pc-linux-gnu. My site has a common location where the
> original ia64 libraries and include files are located. The original libc.so
> file available from this common location is the following:
> 
> /* GNU ld script
>    Use the shared library, but some functions are only in
>    the static library, so try that secondarily.  */
> GROUP ( /lib/libc.so.6.1 /usr/lib/libc_nonshared.a )
> 
> The cross-compiler cannot build using this libc.so file since the target
> libraries are not available under /lib and /usr/lib in my host machine. In
> order for the cross-compiler to work, I need to use a libc.so file that
> looks like this:
> 
> /* GNU ld script
>    Use the shared library, but some functions are only in
>    the static library, so try that secondarily.  */
> GROUP ( libc.so.6.1 libc_nonshared.a ld-linux-ia64.so.2 )
> 
> We would not like however to change the original libc.so. My question
> therefore is:
> 
> Is there a way to ask GCC and GNU ld to use a different libc.so file?

If you use a 3.4 snapshot of GCC and a CVS snapshot of binutils, you
can use the --with-sysroot configure option.  With 3.2.3/2.13, there's
no way to do this without replacing libc.so.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer