complibs/mpc: fix MPC 0.8.1 build with MPFR 3.0.0

This is the change introduced by revision 734 of MPC repository.

Author: Paul Zimmermann <Paul.Zimmermann@loria.fr>
Revision log: [acos.c] fixed problem with GMP_RNDA (should be MPFR_RNDA, and code was wrong)

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

 --- binutils/ld/ldmain.c

 +++ binutils/ld/ldmain.c

 @@ -273,2 +273,5 @@ main (int argc, char **argv)

    link_info.emit_hash = TRUE;

 +#ifndef __mips__

 +  link_info.emit_gnu_hash = TRUE;

 +#endif

    link_info.callbacks = &link_callbacks;