binutils-2.18; install failure

Following all standard default steps and conditions.

Platform    : SGI: Indigo^2
OS          : IRIX 5.5.22

Tarball downloaded and expanded in Directory-1
object directory built outside of binutils-2.18 tree -

mkdir gcc_objdir      =>  {Directory-1/gcc_objdir}
cd gcc_objdir
sh Directory-1/.configure => processed OK to "config.status:  => 
"creating Makefile" last step

make =>
   failure step:
     make
     checking for mprotect... yes
     updating cache ./config.cache
     configure: creating ./config.status
     config.status: creating Makefile
     config.status: creating doc/Makefile
     config.status: creating bfd-in3.h
     config.status: creating po/Makefile.in
     config.status: creating config.h
     config.status: executing depfiles commands
     config.status: executing libtool commands
     config.status: executing default-1 commands
     config.status: executing bfd_stdint.h commands
     config.status: executing default commands
             if [ x"" != x ] && [ ! -d pic ]; then \
               mkdir pic; \
             else true; fi
             touch stamp-picdir
     don't know how to make regex.c (bu42).
     *** Error code 1 (bu21)
     *** Error code 1 (bu21)

_______________________________________________________________
Last few lines of config.log created =>
     ## ----------- ##
     ## confdefs.h. ##
     ## ----------- ##

     #define PACKAGE_BUGREPORT ""
     #define PACKAGE_NAME ""
     #define PACKAGE_STRING ""
     #define PACKAGE_TARNAME ""
     #define PACKAGE_VERSION ""
     #endif
     #ifdef __cplusplus
     extern "C" void std::exit (int) throw (); using std::exit;

     configure: exit 0

_______________________________________________________________

Any suggestions

Thanks!