lib and lib64 on x86_64 arch, how to change?

[Andrew Haley]

Leonid Petrov wrote:
> Hello,
> 
>   I compile gcc-4.3.2 on x86_64 processor, 64-bit Linux and 
> configure gcc as ../configure --prefix=$G/opt --enable-shared \
> --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu \
> --with-mpfr=$G/opt --with-gmp=$G/opt 
> --enable-languages=c,c++,fortran,java,objc,obj-c++ 
> 
>   When I run make install, among others, two directories are created:
> $G/opt/lib with legacy 32-bit libraries and $G/opt/lib64 
> with 64-bit libraries. My question is how I can force 
> the build process to put 64-bit libraries in $G/opt/lib and
> legacy 32-bit libraries in $G/opt/lib32 ?

Edit gcc/config/i386/t-linux64: you'll find the setting you need
to edit in MULTILIB_OSDIRNAMES.

Andrew.