http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54415
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |WONTFIX --- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-09-03 08:20:51 UTC --- > I set env CC="gcc -m64" And again executed the configure command as below, > but > it fails. > > ../gcc-4.4.4/configure --prefix=/usr/local/gcc-4.4.4_64 > --with-gmp=/els/install/gcc-4.4.4_64/gmp32 > --with-mpfr=/els/install/gcc-4.4.4_64/mpfr32 --build=sparcv9-sun-solaris2.10 > --enable-languages=c,c++ --with-gnu-as --with-gnu-ld You need to have 64-bit binutils as well if you want to build a 64-bit compiler. Please look for help elsewhere for basic stuff, this isn't the right place.