Merge dfischer@bk-internal.mysql.com:/home/bk/mysql-5.0-build

  cc_ver=`$cc --version | sed 1q`

  cc_verno=`echo $cc_ver | sed -e 's/^.*gcc/gcc/g; s/[^0-9. ]//g;	 s/^ *//g; s/ .*//g'`

  set -- `echo $cc_verno | tr '.' ' '`

  cc_major=$1

  cc_minor=$2

  cc_patch=$3

  cc_comp=`expr $cc_major '*' 100 '+' $cc_minor`

  case "$cc_ver--$cc_verno" in

    *GCC*)

        # different gcc backends (and versions) have different CPU flags

        case `gcc -dumpmachine` in

          i?86-*)

                case "$cc_verno" in

                      3.4*|3.5*|4.*)

                            check_cpu_args='-mtune=$cpu_arg -march=$cpu_arg'

                            ;;

                      *)

                            check_cpu_args='-mcpu=$cpu_arg -march=$cpu_arg'

                            ;;

            esac

	    if test "$cc_comp" -lt 304

            then

                            check_cpu_args='-mcpu=$cpu_arg'

            else

                            check_cpu_args='-mtune=$cpu_arg'

            fi

            ;;

          ppc-*)

                    check_cpu_args='-mcpu=$cpu_arg -mtune=$cpu_arg'

            ;;

          x86_64-*)

	    if test "$cc_comp" -lt 304

            then

                            check_cpu_args='-mcpu=$cpu_arg'

            else

                            check_cpu_args='-mtune=$cpu_arg'

            fi

            ;;

          *)

            check_cpu_cflags=""