On 10 August 2011 14:56, Joe Young wrote: > Problems building 64 bit gnu gcc > x86 Solaris 10 > source gcc-3.4.6 > > How do you get gnu gcc to build a 64 bit binary compiler? > > I've got two gcc-3.4.6 source directories. And am compiling the first > with > ./configure -with-arch-64=i386 --with-tune-64=i386 --with-cpu-64=i386 > in order to make a 64 bit capable gcc compiler ready and able to > compile the second source directory with the same configure line (albeit with > a different destination and install directory) in order to end up with a > 64 bit gcc compiler. > > The problem is that both compilations produce the same result, a 32 > bit gcc /usr/local/bin/gcc: ELF 32-bit LSB executable 80386 Version 1 [FPU], > dynamically linked, not stripped You can't, at least for GCC 3.4.6, which only supports i386-*-solaris* configurations. Starting with GCC 4.7 you can configure it for x86_64-*-solaris2.10 which produces a 64-bit binary, which (I believe) defaults to producing 64-bit output.