Dynamically linking against GMP and MPFR

[H. J. Lu]

On Fri, May 25, 2007 at 07:10:23AM -0700, Ian Lance Taylor wrote:
> I just noticed a problem with our use of GMP and MPFR.  If you
> carefully install the appropriate versions of GMP and MPFR on one
> machine in the normal way, and build gcc on that machine,
> cc1/cc1plus/etc. wind up dynamically linked against libgmp.so and
> libmpfr.so.  If you then copy the compiler to some other system, or
> simply run it from another system via NFS, and you have not carefully
> installed the appropriate versions of GMP and MPFR on that other
> system, the compiler will fail to start, getting an error from the
> dynamic linker.
> 
> We need a configure time option to link statically against GMP and
> MPFR even if dynamic versions of the libraries are available.
> 

I have been doing it ever since gmp was introduced. Otherwise,
my gcc binaries aren't very useful as you have discovered.


H.J.