* configure.host [s390*-linux*]: Set can_unwind_signal=yes.

* configure.in [s390*-*-linux*]: Do not define HAVE_BACKTRACE.
Set SIGNAL_HANDLER=include/s390-linux.h.
* configure: Regenerate.
* include/s390-linux.h: New file.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@54012 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 305 insertions, 206 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index d1265281ca1..df8a4050f45 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,11 @@
+2002-05-29  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* configure.host [s390*-linux*]: Set can_unwind_signal=yes.
+	* configure.in [s390*-*-linux*]: Do not define HAVE_BACKTRACE.
+	Set SIGNAL_HANDLER=include/s390-linux.h.
+	* configure: Regenerate.
+	* include/s390-linux.h: New file.
+
 2002-05-24  Bryce McKinlay  <bryce@waitaki.otago.ac.nz>
 
 	* java/lang/natThrowable.cc (fillInStackTrace): Use "stackTraceBytes",
diff --git a/libjava/configure b/libjava/configure
index be85b039bc4..da1ceb78909 100755
--- a/libjava/configure
+++ b/libjava/configure
@@ -3840,6 +3840,9 @@ if eval "test \"`echo '$ac_cv_func_'backtrace`\" = yes"; then
        ia64-*-linux*)
 	 # Has broken backtrace()
 	 ;;
+       s390*-*-linux*)
+	 # Has broken backtrace()
+	 ;;
        *)
          cat >> confdefs.h <<\EOF
 #define HAVE_BACKTRACE 1
@@ -3854,7 +3857,7 @@ fi
 
 
    echo $ac_n "checking for dladdr in -ldl""... $ac_c" 1>&6
-echo "configure:3858: checking for dladdr in -ldl" >&5
+echo "configure:3861: checking for dladdr in -ldl" >&5
 ac_lib_var=`echo dl'_'dladdr | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3862,7 +3865,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3866 "configure"
+#line 3869 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3873,7 +3876,7 @@ int main() {
 dladdr()
 ; return 0; }
 EOF
-if { (eval echo configure:3877: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3880: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3902,7 +3905,7 @@ do
 
 ac_safe=`echo "$ac_file" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_file""... $ac_c" 1>&6
-echo "configure:3906: checking for $ac_file" >&5
+echo "configure:3909: checking for $ac_file" >&5
 if eval "test \"`echo '$''{'ac_cv_file_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3950,7 +3953,7 @@ fi
 
 
   echo $ac_n "checking for iconv""... $ac_c" 1>&6
-echo "configure:3954: checking for iconv" >&5
+echo "configure:3957: checking for iconv" >&5
 if eval "test \"`echo '$''{'am_cv_func_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3958,7 +3961,7 @@ else
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
     cat > conftest.$ac_ext <<EOF
-#line 3962 "configure"
+#line 3965 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -3968,7 +3971,7 @@ iconv_t cd = iconv_open("","");
        iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:3972: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3975: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_func_iconv=yes
 else
@@ -3980,7 +3983,7 @@ rm -f conftest*
       am_save_LIBS="$LIBS"
       LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
       cat > conftest.$ac_ext <<EOF
-#line 3984 "configure"
+#line 3987 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -3990,7 +3993,7 @@ iconv_t cd = iconv_open("","");
          iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:3994: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3997: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_lib_iconv=yes
         am_cv_func_iconv=yes
@@ -4011,13 +4014,13 @@ echo "$ac_t""$am_cv_func_iconv" 1>&6
 EOF
 
     echo $ac_n "checking for iconv declaration""... $ac_c" 1>&6
-echo "configure:4015: checking for iconv declaration" >&5
+echo "configure:4018: checking for iconv declaration" >&5
     if eval "test \"`echo '$''{'am_cv_proto_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4021 "configure"
+#line 4024 "configure"
 #include "confdefs.h"
 
 #include <stdlib.h>
@@ -4036,7 +4039,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:4040: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4043: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   am_cv_proto_iconv_arg1=""
 else
@@ -4065,19 +4068,19 @@ EOF
 
    if test $ac_cv_header_locale_h = yes; then
     echo $ac_n "checking for LC_MESSAGES""... $ac_c" 1>&6
-echo "configure:4069: checking for LC_MESSAGES" >&5
+echo "configure:4072: checking for LC_MESSAGES" >&5
 if eval "test \"`echo '$''{'am_cv_val_LC_MESSAGES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4074 "configure"
+#line 4077 "configure"
 #include "confdefs.h"
 #include <locale.h>
 int main() {
 return LC_MESSAGES
 ; return 0; }
 EOF
-if { (eval echo configure:4081: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_val_LC_MESSAGES=yes
 else
@@ -4098,12 +4101,12 @@ EOF
     fi
   fi
    echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:4102: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:4105: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4107 "configure"
+#line 4110 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -4111,7 +4114,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:4115: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4118: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -4132,12 +4135,12 @@ EOF
 fi
 
 echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
-echo "configure:4136: checking for tm_zone in struct tm" >&5
+echo "configure:4139: checking for tm_zone in struct tm" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4141 "configure"
+#line 4144 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -4145,7 +4148,7 @@ int main() {
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:4149: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4152: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -4165,12 +4168,12 @@ EOF
 
 else
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
-echo "configure:4169: checking for tzname" >&5
+echo "configure:4172: checking for tzname" >&5
 if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4174 "configure"
+#line 4177 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -4180,7 +4183,7 @@ int main() {
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:4184: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4187: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -4205,12 +4208,12 @@ fi
    for ac_func in gethostbyname_r
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4209: checking for $ac_func" >&5
+echo "configure:4212: 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 4214 "configure"
+#line 4217 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4233,7 +4236,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4237: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4240: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4260,7 +4263,7 @@ EOF
      # We look for the one that returns `int'.
      # Hopefully this check is robust enough.
      cat > conftest.$ac_ext <<EOF
-#line 4264 "configure"
+#line 4267 "configure"
 #include "confdefs.h"
 #include <netdb.h>
 EOF
@@ -4280,7 +4283,7 @@ rm -f conftest*
      *" -D_REENTRANT "*) ;;
      *)
 		echo $ac_n "checking whether gethostbyname_r declaration requires -D_REENTRANT""... $ac_c" 1>&6
-echo "configure:4284: checking whether gethostbyname_r declaration requires -D_REENTRANT" >&5
+echo "configure:4287: checking whether gethostbyname_r declaration requires -D_REENTRANT" >&5
 if eval "test \"`echo '$''{'libjava_cv_gethostbyname_r_needs_reentrant'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4293,14 +4296,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
 	  cat > conftest.$ac_ext <<EOF
-#line 4297 "configure"
+#line 4300 "configure"
 #include "confdefs.h"
 #include <netdb.h>
 int main() {
 gethostbyname_r("", 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:4304: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4307: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libjava_cv_gethostbyname_r_needs_reentrant=no
 else
@@ -4310,14 +4313,14 @@ else
   		CPPFLAGS_SAVE="$CPPFLAGS"
 		CPPFLAGS="$CPPFLAGS -D_REENTRANT"
 		cat > conftest.$ac_ext <<EOF
-#line 4314 "configure"
+#line 4317 "configure"
 #include "confdefs.h"
 #include <netdb.h>
 int main() {
 gethostbyname_r("", 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:4321: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4324: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libjava_cv_gethostbyname_r_needs_reentrant=yes
 else
@@ -4352,12 +4355,12 @@ EOF
      esac
 
      echo $ac_n "checking for struct hostent_data""... $ac_c" 1>&6
-echo "configure:4356: checking for struct hostent_data" >&5
+echo "configure:4359: checking for struct hostent_data" >&5
 if eval "test \"`echo '$''{'libjava_cv_struct_hostent_data'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   	cat > conftest.$ac_ext <<EOF
-#line 4361 "configure"
+#line 4364 "configure"
 #include "confdefs.h"
 
 #if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
@@ -4368,7 +4371,7 @@ int main() {
 struct hostent_data data;
 ; return 0; }
 EOF
-if { (eval echo configure:4372: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4375: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libjava_cv_struct_hostent_data=yes
 else
@@ -4400,7 +4403,7 @@ done
    # to exist where expected.  (The root issue: AC_CHECK_FUNCS assumes C
    # linkage check is enough, yet C++ code requires proper prototypes.)
    cat > conftest.$ac_ext <<EOF
-#line 4404 "configure"
+#line 4407 "configure"
 #include "confdefs.h"
 #include <netdb.h>
 EOF
@@ -4411,12 +4414,12 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
    for ac_func in gethostbyaddr_r
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4415: checking for $ac_func" >&5
+echo "configure:4418: 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 4420 "configure"
+#line 4423 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4439,7 +4442,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4443: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4446: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4466,7 +4469,7 @@ EOF
      # We look for the one that returns `int'.
      # Hopefully this check is robust enough.
      cat > conftest.$ac_ext <<EOF
-#line 4470 "configure"
+#line 4473 "configure"
 #include "confdefs.h"
 #include <netdb.h>
 EOF
@@ -4493,12 +4496,12 @@ rm -f conftest*
    for ac_func in gethostname
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4497: checking for $ac_func" >&5
+echo "configure:4500: 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 4502 "configure"
+#line 4505 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4521,7 +4524,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4525: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4528: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4545,7 +4548,7 @@ EOF
 EOF
 
      cat > conftest.$ac_ext <<EOF
-#line 4549 "configure"
+#line 4552 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 EOF
@@ -4576,12 +4579,12 @@ done
       for ac_func in pthread_mutexattr_settype pthread_mutexattr_setkind_np
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4580: checking for $ac_func" >&5
+echo "configure:4583: 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 4585 "configure"
+#line 4588 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4604,7 +4607,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4608: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4611: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4634,12 +4637,12 @@ done
       for ac_func in sched_yield
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4638: checking for $ac_func" >&5
+echo "configure:4641: 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 4643 "configure"
+#line 4646 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4662,7 +4665,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4666: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4669: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4684,7 +4687,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for sched_yield in -lrt""... $ac_c" 1>&6
-echo "configure:4688: checking for sched_yield in -lrt" >&5
+echo "configure:4691: checking for sched_yield in -lrt" >&5
 ac_lib_var=`echo rt'_'sched_yield | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4692,7 +4695,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lrt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4696 "configure"
+#line 4699 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4703,7 +4706,7 @@ int main() {
 sched_yield()
 ; return 0; }
 EOF
-if { (eval echo configure:4707: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4710: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4729,7 +4732,7 @@ else
   echo "$ac_t""no" 1>&6
 
 	  echo $ac_n "checking for sched_yield in -lposix4""... $ac_c" 1>&6
-echo "configure:4733: checking for sched_yield in -lposix4" >&5
+echo "configure:4736: checking for sched_yield in -lposix4" >&5
 ac_lib_var=`echo posix4'_'sched_yield | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4737,7 +4740,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix4  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4741 "configure"
+#line 4744 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4748,7 +4751,7 @@ int main() {
 sched_yield()
 ; return 0; }
 EOF
-if { (eval echo configure:4752: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4755: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4784,7 +4787,7 @@ done
       # We can save a little space at runtime if the mutex has m_count
       # or __m_count.  This is a nice hack for Linux.
       cat > conftest.$ac_ext <<EOF
-#line 4788 "configure"
+#line 4791 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
@@ -4793,7 +4796,7 @@ int main() {
         
 ; return 0; }
 EOF
-if { (eval echo configure:4797: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4800: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define PTHREAD_MUTEX_HAVE_M_COUNT 1
@@ -4805,7 +4808,7 @@ else
   rm -rf conftest*
   
 	cat > conftest.$ac_ext <<EOF
-#line 4809 "configure"
+#line 4812 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
@@ -4814,7 +4817,7 @@ int main() {
 	  
 ; return 0; }
 EOF
-if { (eval echo configure:4818: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4821: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define PTHREAD_MUTEX_HAVE___M_COUNT 1
@@ -4834,12 +4837,12 @@ rm -f conftest*
    for ac_func in gettimeofday time ftime
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4838: checking for $ac_func" >&5
+echo "configure:4841: 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 4843 "configure"
+#line 4846 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4862,7 +4865,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4869: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4893,12 +4896,12 @@ done
    for ac_func in memmove
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4897: checking for $ac_func" >&5
+echo "configure:4900: 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 4902 "configure"
+#line 4905 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4921,7 +4924,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4925: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4928: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4951,12 +4954,12 @@ done
    for ac_func in memcpy
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4955: checking for $ac_func" >&5
+echo "configure:4958: 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 4960 "configure"
+#line 4963 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4979,7 +4982,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4983: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4986: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5008,7 +5011,7 @@ done
    fi
 
    echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:5012: checking for dlopen in -ldl" >&5
+echo "configure:5015: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5016,7 +5019,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5020 "configure"
+#line 5023 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -5027,7 +5030,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:5031: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5034: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5072,7 +5075,7 @@ fi
    #--------------------------------------------------------------------
 
    echo $ac_n "checking for socket libraries""... $ac_c" 1>&6
-echo "configure:5076: checking for socket libraries" >&5
+echo "configure:5079: checking for socket libraries" >&5
 if eval "test \"`echo '$''{'gcj_cv_lib_sockets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5080,12 +5083,12 @@ else
      gcj_checkBoth=0
      unset ac_cv_func_connect
      echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:5084: checking for connect" >&5
+echo "configure:5087: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5089 "configure"
+#line 5092 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -5108,7 +5111,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5112: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5115: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -5131,7 +5134,7 @@ fi
      if test "$gcj_checkSocket" = 1; then
 	 unset ac_cv_func_connect
 	 echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:5135: checking for main in -lsocket" >&5
+echo "configure:5138: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5139,14 +5142,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5143 "configure"
+#line 5146 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5150: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5153: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5173,12 +5176,12 @@ fi
 	 LIBS="$LIBS -lsocket -lnsl"
 	 unset ac_cv_func_accept
 	 echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:5177: checking for accept" >&5
+echo "configure:5180: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5182 "configure"
+#line 5185 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -5201,7 +5204,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5205: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5208: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_accept=yes"
 else
@@ -5228,12 +5231,12 @@ fi
      gcj_oldLibs=$LIBS
      LIBS="$LIBS $gcj_cv_lib_sockets"
      echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:5232: checking for gethostbyname" >&5
+echo "configure:5235: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5237 "configure"
+#line 5240 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -5256,7 +5259,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5260: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -5274,7 +5277,7 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in -lnsl""... $ac_c" 1>&6
-echo "configure:5278: checking for main in -lnsl" >&5
+echo "configure:5281: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5282,14 +5285,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5286 "configure"
+#line 5289 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5293: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5296: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5321,7 +5324,7 @@ echo "$ac_t""$gcj_cv_lib_sockets" 1>&6
 
    if test "$with_system_zlib" = yes; then
       echo $ac_n "checking for deflate in -lz""... $ac_c" 1>&6
-echo "configure:5325: checking for deflate in -lz" >&5
+echo "configure:5328: checking for deflate in -lz" >&5
 ac_lib_var=`echo z'_'deflate | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5329,7 +5332,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lz  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5333 "configure"
+#line 5336 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -5340,7 +5343,7 @@ int main() {
 deflate()
 ; return 0; }
 EOF
-if { (eval echo configure:5344: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5347: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5367,7 +5370,7 @@ fi
    # requires -ldl.
    if test "$GC" = boehm; then
       echo $ac_n "checking for main in -ldl""... $ac_c" 1>&6
-echo "configure:5371: checking for main in -ldl" >&5
+echo "configure:5374: checking for main in -ldl" >&5
 ac_lib_var=`echo dl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5375,14 +5378,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5379 "configure"
+#line 5382 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5386: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5448,7 +5451,7 @@ fi
 # Extract the first word of "${ac_tool_prefix}gcj", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcj; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:5452: checking for $ac_word" >&5
+echo "configure:5455: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_GCJ'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5480,7 +5483,7 @@ if test -n "$ac_tool_prefix"; then
   # Extract the first word of "gcj", so it can be a program name with args.
 set dummy gcj; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:5484: checking for $ac_word" >&5
+echo "configure:5487: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_GCJ'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5542,13 +5545,13 @@ exec 5>>./config.log
 CPPFLAGS=$GCJ_SAVE_CPPFLAGS
 
 echo $ac_n "checking size of void *""... $ac_c" 1>&6
-echo "configure:5546: checking size of void *" >&5
+echo "configure:5549: checking size of void *" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_void_p'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   for ac_size in 4 8 1 2 16 12  ; do # List sizes in rough order of prevalence.
   cat > conftest.$ac_ext <<EOF
-#line 5552 "configure"
+#line 5555 "configure"
 #include "confdefs.h"
 #include "confdefs.h"
 #include <sys/types.h>
@@ -5558,7 +5561,7 @@ int main() {
 switch (0) case 0: case (sizeof (void *) == $ac_size):;
 ; return 0; }
 EOF
-if { (eval echo configure:5562: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5565: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_sizeof_void_p=$ac_size
 else
@@ -5661,18 +5664,18 @@ EOF
 
 
 echo $ac_n "checking for g++ -ffloat-store bug""... $ac_c" 1>&6
-echo "configure:5665: checking for g++ -ffloat-store bug" >&5
+echo "configure:5668: checking for g++ -ffloat-store bug" >&5
 save_CFLAGS="$CFLAGS"
 CFLAGS="-x c++ -O2 -ffloat-store"
 cat > conftest.$ac_ext <<EOF
-#line 5669 "configure"
+#line 5672 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:5676: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5679: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""no" 1>&6
 else
@@ -5692,17 +5695,17 @@ for ac_hdr in unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5696: checking for $ac_hdr" >&5
+echo "configure:5699: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5701 "configure"
+#line 5704 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5706: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5709: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5732,17 +5735,17 @@ for ac_hdr in dirent.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5736: checking for $ac_hdr" >&5
+echo "configure:5739: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5741 "configure"
+#line 5744 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5746: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5749: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5772,17 +5775,17 @@ for ac_hdr in inttypes.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5776: checking for $ac_hdr" >&5
+echo "configure:5779: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5781 "configure"
+#line 5784 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5786: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5789: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5818,12 +5821,12 @@ fi
 done
 
 echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
-echo "configure:5822: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo "configure:5825: checking for sys/wait.h that is POSIX.1 compatible" >&5
 if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5827 "configure"
+#line 5830 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -5839,7 +5842,7 @@ wait (&s);
 s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
 ; return 0; }
 EOF
-if { (eval echo configure:5843: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5846: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_sys_wait_h=yes
 else
@@ -5861,12 +5864,12 @@ fi
 
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:5865: checking for ANSI C header files" >&5
+echo "configure:5868: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5870 "configure"
+#line 5873 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -5874,7 +5877,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5878: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5881: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5891,7 +5894,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 5895 "configure"
+#line 5898 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -5909,7 +5912,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 5913 "configure"
+#line 5916 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -5930,7 +5933,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 5934 "configure"
+#line 5937 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -5941,7 +5944,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:5945: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5948: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -5965,12 +5968,12 @@ EOF
 fi
 
 echo $ac_n "checking for ssize_t""... $ac_c" 1>&6
-echo "configure:5969: checking for ssize_t" >&5
+echo "configure:5972: checking for ssize_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_ssize_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5974 "configure"
+#line 5977 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -5999,9 +6002,9 @@ fi
 
 
 echo $ac_n "checking for in_addr_t""... $ac_c" 1>&6
-echo "configure:6003: checking for in_addr_t" >&5
+echo "configure:6006: checking for in_addr_t" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6005 "configure"
+#line 6008 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6015,7 +6018,7 @@ int main() {
 in_addr_t foo;
 ; return 0; }
 EOF
-if { (eval echo configure:6019: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6022: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_IN_ADDR_T 1
@@ -6031,16 +6034,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking whether struct ip_mreq is in netinet/in.h""... $ac_c" 1>&6
-echo "configure:6035: checking whether struct ip_mreq is in netinet/in.h" >&5
+echo "configure:6038: checking whether struct ip_mreq is in netinet/in.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6037 "configure"
+#line 6040 "configure"
 #include "confdefs.h"
 #include <netinet/in.h>
 int main() {
 struct ip_mreq mreq;
 ; return 0; }
 EOF
-if { (eval echo configure:6044: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6047: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_STRUCT_IP_MREQ 1
@@ -6056,16 +6059,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking whether struct ipv6_mreq is in netinet/in.h""... $ac_c" 1>&6
-echo "configure:6060: checking whether struct ipv6_mreq is in netinet/in.h" >&5
+echo "configure:6063: checking whether struct ipv6_mreq is in netinet/in.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6062 "configure"
+#line 6065 "configure"
 #include "confdefs.h"
 #include <netinet/in.h>
 int main() {
 struct ipv6_mreq mreq6;
 ; return 0; }
 EOF
-if { (eval echo configure:6069: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6072: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_STRUCT_IPV6_MREQ 1
@@ -6081,16 +6084,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking whether struct sockaddr_in6 is in netinet/in.h""... $ac_c" 1>&6
-echo "configure:6085: checking whether struct sockaddr_in6 is in netinet/in.h" >&5
+echo "configure:6088: checking whether struct sockaddr_in6 is in netinet/in.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6087 "configure"
+#line 6090 "configure"
 #include "confdefs.h"
 #include <netinet/in.h>
 int main() {
 struct sockaddr_in6 addr6;
 ; return 0; }
 EOF
-if { (eval echo configure:6094: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6097: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_INET6 1
@@ -6106,9 +6109,9 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for socklen_t in sys/socket.h""... $ac_c" 1>&6
-echo "configure:6110: checking for socklen_t in sys/socket.h" >&5
+echo "configure:6113: checking for socklen_t in sys/socket.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6112 "configure"
+#line 6115 "configure"
 #include "confdefs.h"
 #define _POSIX_PII_SOCKET
 #include <sys/types.h>
@@ -6117,7 +6120,7 @@ int main() {
 socklen_t x = 5;
 ; return 0; }
 EOF
-if { (eval echo configure:6121: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6124: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_SOCKLEN_T 1
@@ -6133,16 +6136,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for tm_gmtoff in struct tm""... $ac_c" 1>&6
-echo "configure:6137: checking for tm_gmtoff in struct tm" >&5
+echo "configure:6140: checking for tm_gmtoff in struct tm" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6139 "configure"
+#line 6142 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 struct tm tim; tim.tm_gmtoff = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:6146: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6149: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define STRUCT_TM_HAS_GMTOFF 1
@@ -6155,16 +6158,16 @@ else
   rm -rf conftest*
   echo "$ac_t""no" 1>&6
    echo $ac_n "checking for global timezone variable""... $ac_c" 1>&6
-echo "configure:6159: checking for global timezone variable" >&5
+echo "configure:6162: checking for global timezone variable" >&5
                cat > conftest.$ac_ext <<EOF
-#line 6161 "configure"
+#line 6164 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 void i(){long z2 = 2*timezone;}
 ; return 0; }
 EOF
-if { (eval echo configure:6168: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6171: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_TIMEZONE 1
@@ -6177,16 +6180,16 @@ else
   rm -rf conftest*
   echo "$ac_t""no" 1>&6
        echo $ac_n "checking for global _timezone variable""... $ac_c" 1>&6
-echo "configure:6181: checking for global _timezone variable" >&5
+echo "configure:6184: checking for global _timezone variable" >&5
               cat > conftest.$ac_ext <<EOF
-#line 6183 "configure"
+#line 6186 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 long z2 = _timezone;
 ; return 0; }
 EOF
-if { (eval echo configure:6190: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6193: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_UNDERSCORE_TIMEZONE 1
@@ -6208,19 +6211,19 @@ rm -f conftest*
 # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
 echo $ac_n "checking for working alloca.h""... $ac_c" 1>&6
-echo "configure:6212: checking for working alloca.h" >&5
+echo "configure:6215: checking for working alloca.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6217 "configure"
+#line 6220 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() {
 char *p = alloca(2 * sizeof(int));
 ; return 0; }
 EOF
-if { (eval echo configure:6224: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6227: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_header_alloca_h=yes
 else
@@ -6241,12 +6244,12 @@ EOF
 fi
 
 echo $ac_n "checking for alloca""... $ac_c" 1>&6
-echo "configure:6245: checking for alloca" >&5
+echo "configure:6248: checking for alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6250 "configure"
+#line 6253 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -6274,7 +6277,7 @@ int main() {
 char *p = (char *) alloca(1);
 ; return 0; }
 EOF
-if { (eval echo configure:6278: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6281: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_func_alloca_works=yes
 else
@@ -6306,12 +6309,12 @@ EOF
 
 
 echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:6310: checking whether alloca needs Cray hooks" >&5
+echo "configure:6313: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6315 "configure"
+#line 6318 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -6336,12 +6339,12 @@ echo "$ac_t""$ac_cv_os_cray" 1>&6
 if test $ac_cv_os_cray = yes; then
 for ac_func in _getb67 GETB67 getb67; do
   echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6340: checking for $ac_func" >&5
+echo "configure:6343: 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 6345 "configure"
+#line 6348 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6364,7 +6367,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6368: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6391,7 +6394,7 @@ done
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:6395: checking stack direction for C alloca" >&5
+echo "configure:6398: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6399,7 +6402,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 6403 "configure"
+#line 6406 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -6418,7 +6421,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:6422: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6425: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_stack_direction=1
 else
@@ -6445,7 +6448,7 @@ 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:6449: checking for $ac_word" >&5
+echo "configure:6452: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_PERL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6498,6 +6501,9 @@ case "${host}" in
  alpha*-*-linux*)
     SIGNAL_HANDLER=include/dwarf2-signal.h
     ;;
+ s390*-*-linux*)
+    SIGNAL_HANDLER=include/s390-signal.h
+    ;;
  sparc*-*-linux*)
     SIGNAL_HANDLER=include/dwarf2-signal.h
     ;;
@@ -6529,7 +6535,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:6533: checking for X" >&5
+echo "configure:6539: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -6591,12 +6597,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 6595 "configure"
+#line 6601 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6600: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6606: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -6665,14 +6671,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6669 "configure"
+#line 6675 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:6676: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -6778,17 +6784,17 @@ else
     case "`(uname -sr) 2>/dev/null`" in
     "SunOS 5"*)
       echo $ac_n "checking whether -R must be followed by a space""... $ac_c" 1>&6
-echo "configure:6782: checking whether -R must be followed by a space" >&5
+echo "configure:6788: checking whether -R must be followed by a space" >&5
       ac_xsave_LIBS="$LIBS"; LIBS="$LIBS -R$x_libraries"
       cat > conftest.$ac_ext <<EOF
-#line 6785 "configure"
+#line 6791 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6792: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6798: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_nospace=yes
 else
@@ -6804,14 +6810,14 @@ rm -f conftest*
       else
 	LIBS="$ac_xsave_LIBS -R $x_libraries"
 	cat > conftest.$ac_ext <<EOF
-#line 6808 "configure"
+#line 6814 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6821: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_space=yes
 else
@@ -6843,7 +6849,7 @@ rm -f conftest*
     # libraries were built with DECnet support.  And karl@cs.umb.edu says
     # the Alpha needs dnet_stub (dnet does not exist).
     echo $ac_n "checking for dnet_ntoa in -ldnet""... $ac_c" 1>&6
-echo "configure:6847: checking for dnet_ntoa in -ldnet" >&5
+echo "configure:6853: checking for dnet_ntoa in -ldnet" >&5
 ac_lib_var=`echo dnet'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6851,7 +6857,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6855 "configure"
+#line 6861 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6862,7 +6868,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:6866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6872: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6884,7 +6890,7 @@ fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
       echo $ac_n "checking for dnet_ntoa in -ldnet_stub""... $ac_c" 1>&6
-echo "configure:6888: checking for dnet_ntoa in -ldnet_stub" >&5
+echo "configure:6894: checking for dnet_ntoa in -ldnet_stub" >&5
 ac_lib_var=`echo dnet_stub'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6892,7 +6898,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet_stub  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6896 "configure"
+#line 6902 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6903,7 +6909,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:6907: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6932,12 +6938,12 @@ fi
     # The nsl library prevents programs from opening the X display
     # on Irix 5.2, according to dickey@clark.net.
     echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:6936: checking for gethostbyname" >&5
+echo "configure:6942: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6941 "configure"
+#line 6947 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -6960,7 +6966,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6964: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6970: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -6981,7 +6987,7 @@ fi
 
     if test $ac_cv_func_gethostbyname = no; then
       echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:6985: checking for gethostbyname in -lnsl" >&5
+echo "configure:6991: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6989,7 +6995,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6993 "configure"
+#line 6999 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7000,7 +7006,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:7004: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7030,12 +7036,12 @@ fi
     # -lsocket must be given before -lnsl if both are needed.
     # We assume that if connect needs -lnsl, so does gethostbyname.
     echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:7034: checking for connect" >&5
+echo "configure:7040: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7039 "configure"
+#line 7045 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -7058,7 +7064,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7062: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7068: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -7079,7 +7085,7 @@ fi
 
     if test $ac_cv_func_connect = no; then
       echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6
-echo "configure:7083: checking for connect in -lsocket" >&5
+echo "configure:7089: checking for connect in -lsocket" >&5
 ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7087,7 +7093,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7091 "configure"
+#line 7097 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7098,7 +7104,7 @@ int main() {
 connect()
 ; return 0; }
 EOF
-if { (eval echo configure:7102: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7108: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7122,12 +7128,12 @@ fi
 
     # gomez@mi.uni-erlangen.de says -lposix is necessary on A/UX.
     echo $ac_n "checking for remove""... $ac_c" 1>&6
-echo "configure:7126: checking for remove" >&5
+echo "configure:7132: checking for remove" >&5
 if eval "test \"`echo '$''{'ac_cv_func_remove'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7131 "configure"
+#line 7137 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char remove(); below.  */
@@ -7150,7 +7156,7 @@ remove();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7154: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7160: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_remove=yes"
 else
@@ -7171,7 +7177,7 @@ fi
 
     if test $ac_cv_func_remove = no; then
       echo $ac_n "checking for remove in -lposix""... $ac_c" 1>&6
-echo "configure:7175: checking for remove in -lposix" >&5
+echo "configure:7181: checking for remove in -lposix" >&5
 ac_lib_var=`echo posix'_'remove | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7179,7 +7185,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7183 "configure"
+#line 7189 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7190,7 +7196,7 @@ int main() {
 remove()
 ; return 0; }
 EOF
-if { (eval echo configure:7194: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7200: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7214,12 +7220,12 @@ fi
 
     # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
     echo $ac_n "checking for shmat""... $ac_c" 1>&6
-echo "configure:7218: checking for shmat" >&5
+echo "configure:7224: checking for shmat" >&5
 if eval "test \"`echo '$''{'ac_cv_func_shmat'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7223 "configure"
+#line 7229 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char shmat(); below.  */
@@ -7242,7 +7248,7 @@ shmat();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7246: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7252: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_shmat=yes"
 else
@@ -7263,7 +7269,7 @@ fi
 
     if test $ac_cv_func_shmat = no; then
       echo $ac_n "checking for shmat in -lipc""... $ac_c" 1>&6
-echo "configure:7267: checking for shmat in -lipc" >&5
+echo "configure:7273: checking for shmat in -lipc" >&5
 ac_lib_var=`echo ipc'_'shmat | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7271,7 +7277,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lipc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7275 "configure"
+#line 7281 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7282,7 +7288,7 @@ int main() {
 shmat()
 ; return 0; }
 EOF
-if { (eval echo configure:7286: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7292: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7315,7 +7321,7 @@ fi
   # libraries we check for below, so use a different variable.
   #  --interran@uluru.Stanford.EDU, kb@cs.umb.edu.
   echo $ac_n "checking for IceConnectionNumber in -lICE""... $ac_c" 1>&6
-echo "configure:7319: checking for IceConnectionNumber in -lICE" >&5
+echo "configure:7325: checking for IceConnectionNumber in -lICE" >&5
 ac_lib_var=`echo ICE'_'IceConnectionNumber | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7323,7 +7329,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lICE $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7327 "configure"
+#line 7333 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7334,7 +7340,7 @@ int main() {
 IceConnectionNumber()
 ; return 0; }
 EOF
-if { (eval echo configure:7338: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7344: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
diff --git a/libjava/configure.host b/libjava/configure.host
index 16e4cd8baa4..0d9283ea64e 100644
--- a/libjava/configure.host
+++ b/libjava/configure.host
@@ -125,6 +125,7 @@ case "${host}" in
   i[34567]86*-linux* | \
   powerpc*-linux* | \
   alpha*-linux* | \
+  s390*-linux* | \
   sparc*-linux* | \
   ia64-*)
   	can_unwind_signal=yes
diff --git a/libjava/configure.in b/libjava/configure.in
index 70b333d41e2..2e7aa6a57ed 100644
--- a/libjava/configure.in
+++ b/libjava/configure.in
@@ -508,6 +508,9 @@ else
        ia64-*-linux*)
 	 # Has broken backtrace()
 	 ;;
+       s390*-*-linux*)
+	 # Has broken backtrace()
+	 ;;
        *)
          AC_DEFINE(HAVE_BACKTRACE)
 	 ;;
@@ -896,6 +899,9 @@ case "${host}" in
  alpha*-*-linux*)
     SIGNAL_HANDLER=include/dwarf2-signal.h
     ;;
+ s390*-*-linux*)
+    SIGNAL_HANDLER=include/s390-signal.h
+    ;;
  sparc*-*-linux*)
     SIGNAL_HANDLER=include/dwarf2-signal.h
     ;;
diff --git a/libjava/include/s390-signal.h b/libjava/include/s390-signal.h
new file mode 100644
index 00000000000..44777c0672b
--- /dev/null
+++ b/libjava/include/s390-signal.h
@@ -0,0 +1,78 @@
+// s390-signal.h - Catch runtime signals and turn them into exceptions
+// on an s390 based Linux system.
+
+/* Copyright (C) 2002  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+
+#ifndef JAVA_SIGNAL_H
+#define JAVA_SIGNAL_H 1
+
+#include <signal.h>
+#include <sys/syscall.h>
+
+#define HANDLE_SEGV 1
+#undef HANDLE_FPE
+
+#define SIGNAL_HANDLER(_name)	\
+static void _name (int /* _signal */, struct sigcontext _sc)
+
+#define MAKE_THROW_FRAME(_exception)					\
+do									\
+{									\
+  /* Advance the program counter so that it is after the start of the	\
+     instruction:  the s390 exception handler expects the PSW to point 	\
+     to the instruction after a call. */				\
+  _sc.sregs->regs.psw.addr += 2;					\
+									\
+}									\
+while (0)
+
+
+/* For an explanation why we cannot simply use sigaction to
+   install the handlers, see i386-signal.h.  */
+
+/* We use old_kernel_sigaction here because we're calling the kernel
+   directly rather than via glibc.  The sigaction structure that the
+   syscall uses is a different shape from the one in userland and not
+   visible to us in a header file so we define it here.  */
+
+struct old_s390_kernel_sigaction {
+	void (*k_sa_handler) (int, struct sigcontext);
+	unsigned long k_sa_mask;
+	unsigned long k_sa_flags;
+	void (*sa_restorer) (void);
+};
+
+#define INIT_SEGV					\
+do							\
+  {							\
+    nullp = new java::lang::NullPointerException ();	\
+    struct old_s390_kernel_sigaction kact;		\
+    kact.k_sa_handler = catch_segv;			\
+    kact.k_sa_mask = 0;					\
+    kact.k_sa_flags = 0;				\
+    syscall (SYS_sigaction, SIGSEGV, &kact, NULL);	\
+  }							\
+while (0)  
+
+#define INIT_FPE						\
+do								\
+  {								\
+    arithexception = new java::lang::ArithmeticException	\
+      (JvNewStringLatin1 ("/ by zero"));			\
+    struct old_s390_kernel_sigaction kact;			\
+    kact.k_sa_handler = catch_fpe;				\
+    kact.k_sa_mask = 0;						\
+    kact.k_sa_flags = 0;					\
+    syscall (SYS_sigaction, SIGFPE, &kact, NULL);		\
+  }								\
+while (0)  
+
+#endif /* JAVA_SIGNAL_H */
+