* configure.ac: Check for _restgpr_14_x. * include/grub/powerpc/libgcc.h [HAVE__RESTGPR_14_X]: Add _restgpr_*_x and _savegpr_* prototypes.
* configure.ac: Check for _restgpr_14_x. * include/grub/powerpc/libgcc.h [HAVE__RESTGPR_14_X]: Add _restgpr_*_x and _savegpr_* prototypes.