Added new autoconf test for i386 code16/code32 support. The guts of the

test were suggested by Ian Taylor <ian@airs.com> and Joel did the
hard part of putting it in aclocal and editting all the offending
Makefiles and source code which could use this feature.

2 files changed, 182 insertions, 120 deletions

diff --git a/configure b/configure
index 688d4e03dd..b1d08bade7 100644
--- a/configure
+++ b/configure
@@ -1,5 +1,39 @@
 #! /bin/sh
 
+
+
+
+
+# Check to see if we're running under Cygwin32, without using
+# AC_CANONICAL_*.  If so, set output variable CYGWIN32 to "yes".
+# Otherwise set it to "no".
+
+
+
+
+
+# Check to see if we're running under Win32, without using
+# AC_CANONICAL_*.  If so, set output variable EXEEXT to ".exe".
+# Otherwise set it to "".
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.12 
 # Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
@@ -558,7 +592,7 @@ fi
 
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:562: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:596: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -631,7 +665,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:635: checking host system type" >&5
+echo "configure:669: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -652,7 +686,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:656: checking target system type" >&5
+echo "configure:690: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -670,7 +704,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:674: checking build system type" >&5
+echo "configure:708: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -823,7 +857,7 @@ RTEMS_PREFIX=${target_cpu}-${target_vendor}
 # Extract the first word of "cat", so it can be a program name with args.
 set dummy cat; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:827: checking for $ac_word" >&5
+echo "configure:861: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CAT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -854,7 +888,7 @@ fi
 # Extract the first word of "rm", so it can be a program name with args.
 set dummy rm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:858: checking for $ac_word" >&5
+echo "configure:892: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_RM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -885,7 +919,7 @@ fi
 # Extract the first word of "cp", so it can be a program name with args.
 set dummy cp; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:889: checking for $ac_word" >&5
+echo "configure:923: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -916,7 +950,7 @@ fi
 # Extract the first word of "mv", so it can be a program name with args.
 set dummy mv; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:920: checking for $ac_word" >&5
+echo "configure:954: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_MV'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -947,7 +981,7 @@ fi
 # Extract the first word of "ln", so it can be a program name with args.
 set dummy ln; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:951: checking for $ac_word" >&5
+echo "configure:985: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_LN'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -976,7 +1010,7 @@ else
 fi
 
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:980: checking whether ln -s works" >&5
+echo "configure:1014: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -999,7 +1033,7 @@ fi
 # Extract the first word of "chmod", so it can be a program name with args.
 set dummy chmod; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1003: checking for $ac_word" >&5
+echo "configure:1037: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CHMOD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1030,7 +1064,7 @@ fi
 # Extract the first word of "sort", so it can be a program name with args.
 set dummy sort; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1034: checking for $ac_word" >&5
+echo "configure:1068: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_SORT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1069,7 +1103,7 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1073: checking for a BSD compatible install" >&5
+echo "configure:1107: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1122,7 +1156,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 # Extract the first word of "mkdir", so it can be a program name with args.
 set dummy mkdir; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1126: checking for $ac_word" >&5
+echo "configure:1160: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_MKDIR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1154,7 +1188,7 @@ fi
 
 
 echo $ac_n "checking for working $MKDIR -m 0755""... $ac_c" 1>&6
-echo "configure:1158: checking for working $MKDIR -m 0755" >&5
+echo "configure:1192: checking for working $MKDIR -m 0755" >&5
 if eval "test \"`echo '$''{'rtems_cv_prog_MKDIR_P'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1171,7 +1205,7 @@ echo "$ac_t""$rtems_cv_prog_MKDIR_M" 1>&6
 
 
 echo $ac_n "checking for working $MKDIR -p""... $ac_c" 1>&6
-echo "configure:1175: checking for working $MKDIR -p" >&5
+echo "configure:1209: checking for working $MKDIR -p" >&5
 if eval "test \"`echo '$''{'rtems_cv_prog_mkdir_p'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1191,7 +1225,7 @@ test "$rtems_cv_prog_MKDIR_P" = "yes" && MKDIR="$MKDIR -p"
 # Extract the first word of "touch", so it can be a program name with args.
 set dummy touch; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1195: checking for $ac_word" >&5
+echo "configure:1229: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TOUCH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1222,7 +1256,7 @@ fi
 # Extract the first word of "cmp", so it can be a program name with args.
 set dummy cmp; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1226: checking for $ac_word" >&5
+echo "configure:1260: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CMP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1254,7 +1288,7 @@ fi
 # Extract the first word of "sed", so it can be a program name with args.
 set dummy sed; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1258: checking for $ac_word" >&5
+echo "configure:1292: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_SED'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1287,7 +1321,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1291: checking for $ac_word" >&5
+echo "configure:1325: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_M4'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1324,7 +1358,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1328: checking for $ac_word" >&5
+echo "configure:1362: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_KSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1402,7 +1436,7 @@ case "${target}" in
 	;;
   *) 
 	echo $ac_n "checking rtems target cpu""... $ac_c" 1>&6
-echo "configure:1406: checking rtems target cpu" >&5
+echo "configure:1440: checking rtems target cpu" >&5
 target_cpu=`echo $target | sed 's%^\([^-]*\)-\(.*\)$%\1%'`
 echo "$ac_t""$target_cpu" 1>&6
 
@@ -1421,7 +1455,7 @@ fi
 
 # Is this a supported CPU?
 echo $ac_n "checking if cpu $target_cpu is supported""... $ac_c" 1>&6
-echo "configure:1425: checking if cpu $target_cpu is supported" >&5
+echo "configure:1459: checking if cpu $target_cpu is supported" >&5
 if test -d "$srcdir/c/src/exec/score/cpu/$target_cpu"; then
   echo "$ac_t""yes" 1>&6
   makefiles="$makefiles c/src/exec/score/cpu/$target_cpu/Makefile"
@@ -1446,7 +1480,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1450: checking for $ac_word" >&5
+echo "configure:1484: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CC_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1486,7 +1520,7 @@ rtems_save_CFLAGS=$CFLAGS
 CC=$CC_FOR_TARGET
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1490: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1524: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1496,11 +1530,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 1500 "configure"
+#line 1534 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:1504: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1538: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1520,12 +1554,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1524: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1558: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1529: checking whether we are using GNU C" >&5
+echo "configure:1563: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1534,7 +1568,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1538: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1572: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1549,7 +1583,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1553: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1587: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1591,7 +1625,7 @@ unset ac_cv_prog_cc_cross
 
 
 echo $ac_n "checking whether $CC_FOR_TARGET accepts -specs""... $ac_c" 1>&6
-echo "configure:1595: checking whether $CC_FOR_TARGET accepts -specs" >&5
+echo "configure:1629: checking whether $CC_FOR_TARGET accepts -specs" >&5
 if eval "test \"`echo '$''{'rtems_cv_gcc_specs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1612,7 +1646,7 @@ echo "$ac_t""$rtems_cv_gcc_specs" 1>&6
  
 
 echo $ac_n "checking whether $CC_FOR_TARGET accepts --pipe""... $ac_c" 1>&6
-echo "configure:1616: checking whether $CC_FOR_TARGET accepts --pipe" >&5
+echo "configure:1650: checking whether $CC_FOR_TARGET accepts --pipe" >&5
 if eval "test \"`echo '$''{'rtems_cv_gcc_pipe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1653,7 +1687,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1657: checking for $ac_word" >&5
+echo "configure:1691: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CXX_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1693,7 +1727,7 @@ rtems_save_CXXFLAGS=$CXXFLAGS
 CXX=$CXX_FOR_TARGET
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1697: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:1731: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1703,11 +1737,11 @@ ac_link='${CXX-g++} -o conftest $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $L
 cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 1707 "configure"
+#line 1741 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:1711: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1745: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1733,12 +1767,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1737: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1771: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
 echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:1742: checking whether we are using GNU C++" >&5
+echo "configure:1776: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1747,7 +1781,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1751: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1785: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1762,7 +1796,7 @@ if test $ac_cv_prog_gxx = yes; then
   ac_save_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS=
   echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1766: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1800: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1816,7 +1850,7 @@ fi
 
   
 echo $ac_n "checking target's ar""... $ac_c" 1>&6
-echo "configure:1820: checking target's ar" >&5
+echo "configure:1854: checking target's ar" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AR_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1849,7 +1883,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable AR_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:1853: checking whether environment variable AR_FOR_TARGET is an absolute path" >&5
+echo "configure:1887: checking whether environment variable AR_FOR_TARGET is an absolute path" >&5
     case "$AR_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -1866,7 +1900,7 @@ echo "configure:1853: checking whether environment variable AR_FOR_TARGET is an
   # Extract the first word of ""$program_prefix"ar", so it can be a program name with args.
 set dummy "$program_prefix"ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1870: checking for $ac_word" >&5
+echo "configure:1904: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AR_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1899,7 +1933,7 @@ fi
 
   
 echo $ac_n "checking target's as""... $ac_c" 1>&6
-echo "configure:1903: checking target's as" >&5
+echo "configure:1937: checking target's as" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AS_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1932,7 +1966,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable AS_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:1936: checking whether environment variable AS_FOR_TARGET is an absolute path" >&5
+echo "configure:1970: checking whether environment variable AS_FOR_TARGET is an absolute path" >&5
     case "$AS_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -1949,7 +1983,7 @@ echo "configure:1936: checking whether environment variable AS_FOR_TARGET is an
   # Extract the first word of ""$program_prefix"as", so it can be a program name with args.
 set dummy "$program_prefix"as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1953: checking for $ac_word" >&5
+echo "configure:1987: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AS_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1982,7 +2016,7 @@ fi
 
   
 echo $ac_n "checking target's ld""... $ac_c" 1>&6
-echo "configure:1986: checking target's ld" >&5
+echo "configure:2020: checking target's ld" >&5
 if eval "test \"`echo '$''{'ac_cv_path_LD_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2015,7 +2049,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable LD_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:2019: checking whether environment variable LD_FOR_TARGET is an absolute path" >&5
+echo "configure:2053: checking whether environment variable LD_FOR_TARGET is an absolute path" >&5
     case "$LD_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -2032,7 +2066,7 @@ echo "configure:2019: checking whether environment variable LD_FOR_TARGET is an
   # Extract the first word of ""$program_prefix"ld", so it can be a program name with args.
 set dummy "$program_prefix"ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2036: checking for $ac_word" >&5
+echo "configure:2070: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_LD_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2065,7 +2099,7 @@ fi
 
   
 echo $ac_n "checking target's nm""... $ac_c" 1>&6
-echo "configure:2069: checking target's nm" >&5
+echo "configure:2103: checking target's nm" >&5
 if eval "test \"`echo '$''{'ac_cv_path_NM_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2098,7 +2132,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable NM_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:2102: checking whether environment variable NM_FOR_TARGET is an absolute path" >&5
+echo "configure:2136: checking whether environment variable NM_FOR_TARGET is an absolute path" >&5
     case "$NM_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -2115,7 +2149,7 @@ echo "configure:2102: checking whether environment variable NM_FOR_TARGET is an
   # Extract the first word of ""$program_prefix"nm", so it can be a program name with args.
 set dummy "$program_prefix"nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2119: checking for $ac_word" >&5
+echo "configure:2153: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_NM_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2149,7 +2183,7 @@ fi
 
   
 echo $ac_n "checking target's ranlib""... $ac_c" 1>&6
-echo "configure:2153: checking target's ranlib" >&5
+echo "configure:2187: checking target's ranlib" >&5
 if eval "test \"`echo '$''{'ac_cv_path_RANLIB_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2182,7 +2216,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable RANLIB_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:2186: checking whether environment variable RANLIB_FOR_TARGET is an absolute path" >&5
+echo "configure:2220: checking whether environment variable RANLIB_FOR_TARGET is an absolute path" >&5
     case "$RANLIB_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -2199,7 +2233,7 @@ echo "configure:2186: checking whether environment variable RANLIB_FOR_TARGET is
   # Extract the first word of ""$program_prefix"ranlib", so it can be a program name with args.
 set dummy "$program_prefix"ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2203: checking for $ac_word" >&5
+echo "configure:2237: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_RANLIB_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2234,7 +2268,7 @@ fi
     # ranlib wasn't found; check if ar -s is available
     
 echo $ac_n "checking whether $AR_FOR_TARGET -s works""... $ac_c" 1>&6
-echo "configure:2238: checking whether $AR_FOR_TARGET -s works" >&5
+echo "configure:2272: checking whether $AR_FOR_TARGET -s works" >&5
 if eval "test \"`echo '$''{'rtems_cv_AR_FOR_TARGET_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2243,8 +2277,8 @@ cat > conftest.$ac_ext <<EOF
 int foo( int b ) 
 { return b; }
 EOF
-if { ac_try='$CC_FOR_TARGET -o conftest.o -c conftest.$ac_ext'; { (eval echo configure:2247: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } \
-  && { ac_try='$AR_FOR_TARGET -sr conftest.a conftest.o'; { (eval echo configure:2248: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } \
+if { ac_try='$CC_FOR_TARGET -o conftest.o -c conftest.$ac_ext'; { (eval echo configure:2281: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } \
+  && { ac_try='$AR_FOR_TARGET -sr conftest.a conftest.o'; { (eval echo configure:2282: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } \
   && test -s conftest.a ; \
 then
   rtems_cv_AR_FOR_TARGET_S="yes"
@@ -2269,7 +2303,7 @@ echo "$ac_t""$rtems_cv_AR_FOR_TARGET_S" 1>&6
 
   
 echo $ac_n "checking target's objcopy""... $ac_c" 1>&6
-echo "configure:2273: checking target's objcopy" >&5
+echo "configure:2307: checking target's objcopy" >&5
 if eval "test \"`echo '$''{'ac_cv_path_OBJCOPY_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2302,7 +2336,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable OBJCOPY_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:2306: checking whether environment variable OBJCOPY_FOR_TARGET is an absolute path" >&5
+echo "configure:2340: checking whether environment variable OBJCOPY_FOR_TARGET is an absolute path" >&5
     case "$OBJCOPY_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -2319,7 +2353,7 @@ echo "configure:2306: checking whether environment variable OBJCOPY_FOR_TARGET i
   # Extract the first word of ""$program_prefix"objcopy", so it can be a program name with args.
 set dummy "$program_prefix"objcopy; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2323: checking for $ac_word" >&5
+echo "configure:2357: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_OBJCOPY_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2352,7 +2386,7 @@ fi
 
   
 echo $ac_n "checking target's size""... $ac_c" 1>&6
-echo "configure:2356: checking target's size" >&5
+echo "configure:2390: checking target's size" >&5
 if eval "test \"`echo '$''{'ac_cv_path_SIZE_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2385,7 +2419,7 @@ else
     # will override the environment variable, which isn't what the user
     # intends
     echo $ac_n "checking whether environment variable SIZE_FOR_TARGET is an absolute path""... $ac_c" 1>&6
-echo "configure:2389: checking whether environment variable SIZE_FOR_TARGET is an absolute path" >&5
+echo "configure:2423: checking whether environment variable SIZE_FOR_TARGET is an absolute path" >&5
     case "$SIZE_FOR_TARGET" in
     /*) # valid
       echo "$ac_t"""yes"" 1>&6
@@ -2402,7 +2436,7 @@ echo "configure:2389: checking whether environment variable SIZE_FOR_TARGET is a
   # Extract the first word of ""$program_prefix"size", so it can be a program name with args.
 set dummy "$program_prefix"size; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2406: checking for $ac_word" >&5
+echo "configure:2440: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_SIZE_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2435,10 +2469,32 @@ fi
 
 
 
+if test "${target_cpu}" = "i386"; then
+    echo $ac_n "checking for 16 bit mode assembler support""... $ac_c" 1>&6
+echo "configure:2475: checking for 16 bit mode assembler support" >&5
+if eval "test \"`echo '$''{'rtems_cv_prog_gas_code16'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.s << EOF
+         .code16
+         data32 addr32 lgdt 0
+EOF
+      if { ac_try='$AS_FOR_TARGET -o conftest.o conftest.s'; { (eval echo configure:2483: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+        rtems_cv_prog_gas_code16=yes
+      else
+        rtems_cv_prog_gas_code16=no
+      fi
+fi
+
+echo "$ac_t""$rtems_cv_prog_gas_code16" 1>&6
+    RTEMS_GAS_CODE16="$rtems_cv_prog_gas_code16"
+  fi
+
+
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2442: checking for $ac_word" >&5
+echo "configure:2498: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2467,7 +2523,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2471: checking for $ac_word" >&5
+echo "configure:2527: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2515,7 +2571,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2519: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2575: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2525,11 +2581,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 2529 "configure"
+#line 2585 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:2533: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2589: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -2549,12 +2605,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:2553: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2609: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:2558: checking whether we are using GNU C" >&5
+echo "configure:2614: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2563,7 +2619,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2567: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2623: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -2578,7 +2634,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:2582: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:2638: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2607,19 +2663,19 @@ fi
 
 
 echo $ac_n "checking for Cygwin32 environment""... $ac_c" 1>&6
-echo "configure:2611: checking for Cygwin32 environment" >&5
+echo "configure:2667: checking for Cygwin32 environment" >&5
 if eval "test \"`echo '$''{'rtems_cv_cygwin32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2616 "configure"
+#line 2672 "configure"
 #include "confdefs.h"
 
 int main() {
 return __CYGWIN32__;
 ; return 0; }
 EOF
-if { (eval echo configure:2623: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2679: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   rtems_cv_cygwin32=yes
 else
@@ -2637,7 +2693,7 @@ CYGWIN32=
 test "$rtems_cv_cygwin32" = yes && CYGWIN32=yes
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:2641: checking for executable suffix" >&5
+echo "configure:2697: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'rtems_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2673,12 +2729,12 @@ test "$ac_cv_prog_cc_g" = "yes" && CC_CFLAGS_DEBUG_V=-g
 for ac_func in strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2677: checking for $ac_func" >&5
+echo "configure:2733: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2682 "configure"
+#line 2738 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2701,7 +2757,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2705: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2761: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2730,7 +2786,7 @@ if test "$target_cpu" = "unix" ; then
    
 
 echo $ac_n "checking whether $RTEMS_HOST supports System V semaphores""... $ac_c" 1>&6
-echo "configure:2734: checking whether $RTEMS_HOST supports System V semaphores" >&5
+echo "configure:2790: checking whether $RTEMS_HOST supports System V semaphores" >&5
 if eval "test \"`echo '$''{'rtems_cv_sysv_sem'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2739,7 +2795,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 2743 "configure"
+#line 2799 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2765,7 +2821,7 @@ int main () {
 }
 
 EOF
-if { (eval echo configure:2769: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   rtems_cv_sysv_sem="yes"
 else
@@ -2788,7 +2844,7 @@ echo "$ac_t""$rtems_cv_sysv_sem" 1>&6
    
 
 echo $ac_n "checking whether $RTEMS_HOST supports System V shared memory""... $ac_c" 1>&6
-echo "configure:2792: checking whether $RTEMS_HOST supports System V shared memory" >&5
+echo "configure:2848: checking whether $RTEMS_HOST supports System V shared memory" >&5
 if eval "test \"`echo '$''{'rtems_cv_sysv_shm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2797,7 +2853,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 2801 "configure"
+#line 2857 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2813,7 +2869,7 @@ int main () {
 }
 
 EOF
-if { (eval echo configure:2817: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2873: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   rtems_cv_sysv_shm="yes"
 else
@@ -2836,7 +2892,7 @@ echo "$ac_t""$rtems_cv_sysv_shm" 1>&6
    
 
 echo $ac_n "checking whether $RTEMS_HOST supports System V messages""... $ac_c" 1>&6
-echo "configure:2840: checking whether $RTEMS_HOST supports System V messages" >&5
+echo "configure:2896: checking whether $RTEMS_HOST supports System V messages" >&5
 if eval "test \"`echo '$''{'rtems_cv_sysv_msg'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2845,7 +2901,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 2849 "configure"
+#line 2905 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2861,7 +2917,7 @@ int main () {
 }
 
 EOF
-if { (eval echo configure:2865: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2921: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   rtems_cv_sysv_msg="yes"
 else
@@ -2886,7 +2942,7 @@ fi
 # find all the Executive Makefiles
 
 echo $ac_n "checking for Makefile.in in c/src/exec/score/tools/$target_cpu""... $ac_c" 1>&6
-echo "configure:2890: checking for Makefile.in in c/src/exec/score/tools/$target_cpu" >&5
+echo "configure:2946: checking for Makefile.in in c/src/exec/score/tools/$target_cpu" >&5
 if test -d $srcdir/c/src/exec/score/tools/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2901,7 +2957,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/exec/rtems""... $ac_c" 1>&6
-echo "configure:2905: checking for Makefile.in in c/src/exec/rtems" >&5
+echo "configure:2961: checking for Makefile.in in c/src/exec/rtems" >&5
 if test -d $srcdir/c/src/exec/rtems; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2916,7 +2972,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/exec/sapi""... $ac_c" 1>&6
-echo "configure:2920: checking for Makefile.in in c/src/exec/sapi" >&5
+echo "configure:2976: checking for Makefile.in in c/src/exec/sapi" >&5
 if test -d $srcdir/c/src/exec/sapi; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2933,7 +2989,7 @@ fi
 if test "$RTEMS_HAS_POSIX_API" = "yes"; then
   
 echo $ac_n "checking for Makefile.in in c/src/exec/posix""... $ac_c" 1>&6
-echo "configure:2937: checking for Makefile.in in c/src/exec/posix" >&5
+echo "configure:2993: checking for Makefile.in in c/src/exec/posix" >&5
 if test -d $srcdir/c/src/exec/posix; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2955,7 +3011,7 @@ if test -d "$srcdir/c/src/lib/libbsp/$target_cpu"; then
 
   if test -z "$rtems_bsp"; then
     echo $ac_n "checking for bsps""... $ac_c" 1>&6
-echo "configure:2959: checking for bsps" >&5
+echo "configure:3015: checking for bsps" >&5
     files=`ls $srcdir/c/src/lib/libbsp/$target_cpu`
     for file in $files; do
       case $file in
@@ -3020,7 +3076,7 @@ echo "configure:2959: checking for bsps" >&5
         bspdirs="$bspdirs $bspdir"
         
 echo $ac_n "checking for Makefile.in in c/src/lib/libbsp/$bspcpudir$bspdir""... $ac_c" 1>&6
-echo "configure:3024: checking for Makefile.in in c/src/lib/libbsp/$bspcpudir$bspdir" >&5
+echo "configure:3080: checking for Makefile.in in c/src/lib/libbsp/$bspcpudir$bspdir" >&5
 if test -d $srcdir/c/src/lib/libbsp/$bspcpudir$bspdir; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3035,7 +3091,7 @@ fi
 
         
 echo $ac_n "checking for Makefile.in in c/src/lib/libbsp/${bspcpudir}shared""... $ac_c" 1>&6
-echo "configure:3039: checking for Makefile.in in c/src/lib/libbsp/${bspcpudir}shared" >&5
+echo "configure:3095: checking for Makefile.in in c/src/lib/libbsp/${bspcpudir}shared" >&5
 if test -d $srcdir/c/src/lib/libbsp/${bspcpudir}shared; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3058,7 +3114,7 @@ fi
 # find all the CPU dependent library Makefiles
 
 echo $ac_n "checking for Makefile.in in c/src/lib/libcpu/$target_cpu""... $ac_c" 1>&6
-echo "configure:3062: checking for Makefile.in in c/src/lib/libcpu/$target_cpu" >&5
+echo "configure:3118: checking for Makefile.in in c/src/lib/libcpu/$target_cpu" >&5
 if test -d $srcdir/c/src/lib/libcpu/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3075,7 +3131,7 @@ fi
 if test "$skip_startfiles" != "yes"; then
   
 echo $ac_n "checking for Makefile.in in c/src/lib/start/$target_cpu""... $ac_c" 1>&6
-echo "configure:3079: checking for Makefile.in in c/src/lib/start/$target_cpu" >&5
+echo "configure:3135: checking for Makefile.in in c/src/lib/start/$target_cpu" >&5
 if test -d $srcdir/c/src/lib/start/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3107,12 +3163,12 @@ fi
 
 # If the TCP/IP stack is enabled, then find all TCP/IP Makefiles
 echo $ac_n "checking if networking is enabled? ""... $ac_c" 1>&6
-echo "configure:3111: checking if networking is enabled? " >&5
+echo "configure:3167: checking if networking is enabled? " >&5
 echo "$ac_t""$RTEMS_HAS_NETWORKING" 1>&6
 if test "$RTEMS_HAS_NETWORKING" = "yes"; then
   
 echo $ac_n "checking for Makefile.in in c/src/lib/libnetworking""... $ac_c" 1>&6
-echo "configure:3116: checking for Makefile.in in c/src/lib/libnetworking" >&5
+echo "configure:3172: checking for Makefile.in in c/src/lib/libnetworking" >&5
 if test -d $srcdir/c/src/lib/libnetworking; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3134,7 +3190,7 @@ fi
 
 # If the tests are enabled, then find all the test suite Makefiles
 echo $ac_n "checking if the test suites are enabled? ""... $ac_c" 1>&6
-echo "configure:3138: checking if the test suites are enabled? " >&5
+echo "configure:3194: checking if the test suites are enabled? " >&5
 tests_enabled=yes
 # Check whether --enable-tests or --disable-tests was given.
 if test "${enable_tests+set}" = set; then
@@ -3153,7 +3209,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/tests/tools/$target_cpu""... $ac_c" 1>&6
-echo "configure:3157: checking for Makefile.in in c/src/tests/tools/$target_cpu" >&5
+echo "configure:3213: checking for Makefile.in in c/src/tests/tools/$target_cpu" >&5
 if test -d $srcdir/c/src/tests/tools/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3170,7 +3226,7 @@ fi
 if test "$tests_enabled" = "yes"; then
    
 echo $ac_n "checking for Makefile.in in c/src/tests/libtests""... $ac_c" 1>&6
-echo "configure:3174: checking for Makefile.in in c/src/tests/libtests" >&5
+echo "configure:3230: checking for Makefile.in in c/src/tests/libtests" >&5
 if test -d $srcdir/c/src/tests/libtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3185,7 +3241,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/sptests""... $ac_c" 1>&6
-echo "configure:3189: checking for Makefile.in in c/src/tests/sptests" >&5
+echo "configure:3245: checking for Makefile.in in c/src/tests/sptests" >&5
 if test -d $srcdir/c/src/tests/sptests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3200,7 +3256,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/tmtests""... $ac_c" 1>&6
-echo "configure:3204: checking for Makefile.in in c/src/tests/tmtests" >&5
+echo "configure:3260: checking for Makefile.in in c/src/tests/tmtests" >&5
 if test -d $srcdir/c/src/tests/tmtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3215,7 +3271,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/mptests""... $ac_c" 1>&6
-echo "configure:3219: checking for Makefile.in in c/src/tests/mptests" >&5
+echo "configure:3275: checking for Makefile.in in c/src/tests/mptests" >&5
 if test -d $srcdir/c/src/tests/mptests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3231,7 +3287,7 @@ fi
    if test "$RTEMS_HAS_POSIX_API" = "yes"; then
      
 echo $ac_n "checking for Makefile.in in c/src/tests/psxtests""... $ac_c" 1>&6
-echo "configure:3235: checking for Makefile.in in c/src/tests/psxtests" >&5
+echo "configure:3291: checking for Makefile.in in c/src/tests/psxtests" >&5
 if test -d $srcdir/c/src/tests/psxtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3249,7 +3305,7 @@ fi
 
 # If the HWAPI is enabled, the find the HWAPI Makefiles
 echo $ac_n "checking if the HWAPI is enabled? ""... $ac_c" 1>&6
-echo "configure:3253: checking if the HWAPI is enabled? " >&5
+echo "configure:3309: checking if the HWAPI is enabled? " >&5
 # Check whether --enable-hwapi or --disable-hwapi was given.
 if test "${enable_hwapi+set}" = set; then
   enableval="$enable_hwapi"
@@ -3260,7 +3316,7 @@ if test "${enable_hwapi+set}" = set; then
             makefiles="$makefiles c/src/lib/libhwapi/Makefile"
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/analog""... $ac_c" 1>&6
-echo "configure:3264: checking for Makefile.in in c/src/lib/libhwapi/analog" >&5
+echo "configure:3320: checking for Makefile.in in c/src/lib/libhwapi/analog" >&5
 if test -d $srcdir/c/src/lib/libhwapi/analog; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3275,7 +3331,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/discrete""... $ac_c" 1>&6
-echo "configure:3279: checking for Makefile.in in c/src/lib/libhwapi/discrete" >&5
+echo "configure:3335: checking for Makefile.in in c/src/lib/libhwapi/discrete" >&5
 if test -d $srcdir/c/src/lib/libhwapi/discrete; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3290,7 +3346,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/drivers""... $ac_c" 1>&6
-echo "configure:3294: checking for Makefile.in in c/src/lib/libhwapi/drivers" >&5
+echo "configure:3350: checking for Makefile.in in c/src/lib/libhwapi/drivers" >&5
 if test -d $srcdir/c/src/lib/libhwapi/drivers; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3305,7 +3361,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory""... $ac_c" 1>&6
-echo "configure:3309: checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory" >&5
+echo "configure:3365: checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory" >&5
 if test -d $srcdir/c/src/lib/libhwapi/non_volatile_memory; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3320,7 +3376,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/serial""... $ac_c" 1>&6
-echo "configure:3324: checking for Makefile.in in c/src/lib/libhwapi/serial" >&5
+echo "configure:3380: checking for Makefile.in in c/src/lib/libhwapi/serial" >&5
 if test -d $srcdir/c/src/lib/libhwapi/serial; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3335,7 +3391,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/support""... $ac_c" 1>&6
-echo "configure:3339: checking for Makefile.in in c/src/lib/libhwapi/support" >&5
+echo "configure:3395: checking for Makefile.in in c/src/lib/libhwapi/support" >&5
 if test -d $srcdir/c/src/lib/libhwapi/support; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3350,7 +3406,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/wrapup""... $ac_c" 1>&6
-echo "configure:3354: checking for Makefile.in in c/src/lib/libhwapi/wrapup" >&5
+echo "configure:3410: checking for Makefile.in in c/src/lib/libhwapi/wrapup" >&5
 if test -d $srcdir/c/src/lib/libhwapi/wrapup; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3394,10 +3450,11 @@ fi
 
 
 
+
 # pick up all the Makefiles in required parts of the tree
 
 echo $ac_n "checking for Makefile.in in c/build-tools""... $ac_c" 1>&6
-echo "configure:3401: checking for Makefile.in in c/build-tools" >&5
+echo "configure:3458: checking for Makefile.in in c/build-tools" >&5
 if test -d $srcdir/c/build-tools; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3412,7 +3469,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in make""... $ac_c" 1>&6
-echo "configure:3416: checking for Makefile.in in make" >&5
+echo "configure:3473: checking for Makefile.in in make" >&5
 if test -d $srcdir/make; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3427,7 +3484,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/lib/libmisc""... $ac_c" 1>&6
-echo "configure:3431: checking for Makefile.in in c/src/lib/libmisc" >&5
+echo "configure:3488: checking for Makefile.in in c/src/lib/libmisc" >&5
 if test -d $srcdir/c/src/lib/libmisc; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3442,7 +3499,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/tests/samples""... $ac_c" 1>&6
-echo "configure:3446: checking for Makefile.in in c/src/tests/samples" >&5
+echo "configure:3503: checking for Makefile.in in c/src/tests/samples" >&5
 if test -d $srcdir/c/src/tests/samples; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -3668,6 +3725,7 @@ s%@SIZE_FOR_TARGET@%$SIZE_FOR_TARGET%g
 s%@CC@%$CC%g
 s%@EXEEXT@%$EXEEXT%g
 s%@GCCSED@%$GCCSED%g
+s%@RTEMS_GAS_CODE16@%$RTEMS_GAS_CODE16%g
 s%@rtems_cv_prog_cc_cross@%$rtems_cv_prog_cc_cross%g
 s%@RTEMS_BSP_LIST@%$RTEMS_BSP_LIST%g
 s%@RTEMS_HOST@%$RTEMS_HOST%g
diff --git a/configure.in b/configure.in
index d08245faa6..3899e52581 100644
--- a/configure.in
+++ b/configure.in
@@ -227,6 +227,9 @@ fi
 
 RTEMS_CANONICALIZE_TOOLS
 
+dnl if this is an i386, does gas have good code16 support?
+RTEMS_I386_GAS_CODE16
+
 dnl check host cc
 AC_PROG_CC
 
@@ -439,6 +442,7 @@ AC_ARG_ENABLE(hwapi, \
   AC_MSG_RESULT(no)
 )
 
+AC_SUBST(RTEMS_GAS_CODE16)
 AC_SUBST(rtems_cv_prog_cc_cross)
 AC_SUBST(RTEMS_BSP_LIST)
 AC_SUBST(RTEMS_HOST)