* 20.6.2001 Goetz
   tarval_shr neither implements sign extended nor zero extended
   shift: it is dependent on the system implementation of >>.

 * 7.6.2001 Goetz
   gmp.h/libgmp.a differ from RedHat 6.x to 7.x.
   Therefore compile libfirm with the gmp.h belonging to the library
   later used for linking.