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dnl

dnl  i386-gas-code16.m4,v 1.7 2000/11/02 15:44:04 joel Exp

dnl

dnl check for i386 gas supporting 16 bit mode

dnl     - binutils 2.9.1.0.7 and higher

AC_DEFUN(RTEMS_I386_GAS_CODE16,

[ if test "${host_cpu}" = "i386"; then

    AC_CACHE_CHECK([for 16 bit mode assembler support],

      rtems_cv_prog_gas_code16,

      [cat > conftest.s << EOF

         .code16

         data32

         addr32

         lgdt 0

EOF

      if AC_TRY_COMMAND($AS -o conftest.o conftest.s); then

        rtems_cv_prog_gas_code16=yes

      else

        rtems_cv_prog_gas_code16=no

      fi])

    RTEMS_GAS_CODE16="$rtems_cv_prog_gas_code16"

  fi

  AC_SUBST(RTEMS_GAS_CODE16)

  if test x"${RTEMS_GAS_CODE16}" = x"yes";

  then

    AC_DEFINE_UNQUOTED(NEW_GAS,1,[if using 16 bit mode assembler support])

  fi

])