if test "$do64bit" != "no" ; then
	printf "%s\n" "#define TCL_CFG_DO64BIT 1" >>confdefs.h

    fi

    if test "${GCC}" = "yes" ; then
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SEH support in compiler" >&5
printf %s "checking for SEH support in compiler... " >&6; }
if test ${tcl_cv_seh+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e) if test "$cross_compiling" = yes
then :
  tcl_cv_seh=no
else case e in #(
  e)
# ac_fn_c_try_run LINENO
# ----------------------
# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
# executables *can* be run.
ac_fn_c_try_run ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }
then :
  ac_retval=0
else case e in #(
  e) printf "%s\n" "$as_me: program exited with status $ac_status" >&5
       printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

       ac_retval=$ac_status ;;
esac
fi
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_run
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	    #define WIN32_LEAN_AND_MEAN
	    #include <windows.h>
	    #undef WIN32_LEAN_AND_MEAN

	    int main(int argc, char** argv) {
		int a, b = 0;
		__try {
		    a = 666 / b;
		}
		__except (EXCEPTION_EXECUTE_HANDLER) {
		    return 0;
		}
		return 1;
	    }

_ACEOF
if ac_fn_c_try_run "$LINENO"
then :
  tcl_cv_seh=yes
else case e in #(
  e) tcl_cv_seh=no ;;
esac
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi

	 ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tcl_cv_seh" >&5
printf "%s\n" "$tcl_cv_seh" >&6; }
	if test "$tcl_cv_seh" = "no" ; then

printf "%s\n" "#define HAVE_NO_SEH 1" >>confdefs.h

	fi

	#
	# Check to see if the excpt.h include file provided contains the
	# definition for EXCEPTION_DISPOSITION; if not, which is the case
	# with Cygwin's version as of 2002-04-10, define it to be int,
	# sufficient for getting the current code to work.
	#
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for EXCEPTION_DISPOSITION support in include files" >&5