I have gen-fib located inside .../objdir/gmp/ It only tells me that it wants Usage: gen-bases <header|table> <limbbits> <nailbits> make install; [I am stuck on this gcj with gcc compilation, which at the make; stage, stops with this message:] fib2_ui.c:76:29: error: 'FIB_TABLE_LIMIT' undeclared (first use in this function) fib2_ui.c:76:29: note: each undeclared identifier is reported only once for each function it appears in make[5] *** [fib2_ui.lo] Error 1 make[5] Leaving directory '/home/User/gcc-4.6.2/objdir/gmp/mpn' make[4] ***all-recursive] Error 1 make[4] Leaving directory '/home/User/gcc-4.6.2/objdir/gmp' make[3] *** [all] Error 2 make[3] Leaving directory '/home/User/gcc-4.6.2/objdir/gmp' make[2] *** [all-stage1-gmp] Error 2 make[2] Leaving directory '/home/User/gcc-4.6.2/objdir' make[1] *** [stage1-bubble] Error 2 make[1] Leaving directory '/home/User/gcc-4.6.2/objdir' make: *** [all] Error 2