x86: Solaris fixes * Solaris/x86 /bin/as doesn't support .org, so I've just disabled the uses in src/x86/{sysv, unix64}.S, as on Darwin. * Solaris/x86 needs to use EH_FRAME_FLAGS so manually and compiler generated .eh_frame sections match, otherwise libffi.so fails to link: * Solaris/x86 /bin/as has different COMDAT syntax; I've disabled it for the moment.