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dnl

dnl  $Id: i386-gas-code16.m4,v 1.2 2001-09-27 11:59:11 chris 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 "${target_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_FOR_TARGET -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)

])