natSystem.cc (arraycopy): Use bcopy if memmove is not available.

1999-07-31  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* java/lang/natSystem.cc (arraycopy): Use bcopy if memmove is not
	available.  Don't cast memmove args to (void*).
	* configure.in: Do not abort if memmove is not available.

From-SVN: r28360

4 files changed, 76 insertions, 75 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 5c4510e..c6e8f03 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,9 @@
+1999-07-31  Alexandre Oliva  <oliva@dcc.unicamp.br>
+
+	* java/lang/natSystem.cc (arraycopy): Use bcopy if memmove is not
+	available.  Don't cast memmove args to (void*).
+	* configure.in: Do not abort if memmove is not available.
+
 1999-07-22  Bryce McKinlay  <bryce@albatross.co.nz>
 
 	* java/lang/natString.cc (substring): optimize where substring is
diff --git a/libjava/configure b/libjava/configure
index 5af9fb7..93e7266 100755
--- a/libjava/configure
+++ b/libjava/configure
@@ -3238,7 +3238,7 @@ else
 fi
 done
 
-   for ac_func in access stat mkdir rename rmdir unlink realpath getcwd
+   for ac_func in access stat mkdir rename rmdir unlink realpath
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
 echo "configure:3245: checking for $ac_func" >&5
@@ -3860,17 +3860,15 @@ done
       { echo "configure: error: no function found to get the time" 1>&2; exit 1; }
    fi
 
-   # We require memmove.
-   memmove_found=no
    for ac_func in memmove
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3869: checking for $ac_func" >&5
+echo "configure:3867: 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 3874 "configure"
+#line 3872 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3893,7 +3891,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3897: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3895: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3911,27 +3909,24 @@ if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
   cat >> confdefs.h <<EOF
 #define $ac_tr_func 1
 EOF
- memmove_found=yes
+ 
 else
   echo "$ac_t""no" 1>&6
 fi
 done
 
-   if test "$memmove_found" = no; then
-      { echo "configure: error: memmove is required" 1>&2; exit 1; }
-   fi
 
    # We require memcpy.
    memcpy_found=no
    for ac_func in memcpy
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3930: checking for $ac_func" >&5
+echo "configure:3925: 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 3935 "configure"
+#line 3930 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3954,7 +3949,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3958: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3953: \"$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
@@ -4002,7 +3997,7 @@ done
    #--------------------------------------------------------------------
 
    echo $ac_n "checking for socket libraries""... $ac_c" 1>&6
-echo "configure:4006: checking for socket libraries" >&5
+echo "configure:4001: checking for socket libraries" >&5
 if eval "test \"`echo '$''{'gcj_cv_lib_sockets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4010,12 +4005,12 @@ else
      gcj_checkBoth=0
      unset ac_cv_func_connect
      echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:4014: checking for connect" >&5
+echo "configure:4009: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4019 "configure"
+#line 4014 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -4038,7 +4033,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4042: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4037: \"$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
@@ -4061,7 +4056,7 @@ fi
      if test "$gcj_checkSocket" = 1; then
 	 unset ac_cv_func_connect
 	 echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:4065: checking for main in -lsocket" >&5
+echo "configure:4060: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4069,14 +4064,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4073 "configure"
+#line 4068 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4075: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4103,12 +4098,12 @@ fi
 	 LIBS="$LIBS -lsocket -lnsl"
 	 unset ac_cv_func_accept
 	 echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:4107: checking for accept" >&5
+echo "configure:4102: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4112 "configure"
+#line 4107 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -4131,7 +4126,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4135: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4130: \"$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
@@ -4158,12 +4153,12 @@ fi
      gcj_oldLibs=$LIBS
      LIBS="$LIBS $gcj_cv_lib_sockets"
      echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:4162: checking for gethostbyname" >&5
+echo "configure:4157: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4167 "configure"
+#line 4162 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -4186,7 +4181,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4190: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4185: \"$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
@@ -4204,7 +4199,7 @@ 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""... $ac_c" 1>&6
-echo "configure:4208: checking for main in -lnsl" >&5
+echo "configure:4203: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4212,14 +4207,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4216 "configure"
+#line 4211 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4223: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4218: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4251,7 +4246,7 @@ echo "$ac_t""$gcj_cv_lib_sockets" 1>&6
 
    if test "$with_system_zlib" = yes; then
       echo $ac_n "checking for deflate in -lz""... $ac_c" 1>&6
-echo "configure:4255: checking for deflate in -lz" >&5
+echo "configure:4250: checking for deflate in -lz" >&5
 ac_lib_var=`echo z'_'deflate | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4259,7 +4254,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lz  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4263 "configure"
+#line 4258 "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
@@ -4270,7 +4265,7 @@ int main() {
 deflate()
 ; return 0; }
 EOF
-if { (eval echo configure:4274: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4299,7 +4294,7 @@ fi
    # requires -ldl.
    if test "$GC" = boehm; then
       echo $ac_n "checking for main in -ldl""... $ac_c" 1>&6
-echo "configure:4303: checking for main in -ldl" >&5
+echo "configure:4298: checking for main in -ldl" >&5
 ac_lib_var=`echo dl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4307,14 +4302,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4311 "configure"
+#line 4306 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4318: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4313: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4423,17 +4418,17 @@ for ac_hdr in unistd.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sy
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4427: checking for $ac_hdr" >&5
+echo "configure:4422: 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 4432 "configure"
+#line 4427 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4437: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4432: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4463,17 +4458,17 @@ for ac_hdr in dirent.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4467: checking for $ac_hdr" >&5
+echo "configure:4462: 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 4472 "configure"
+#line 4467 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4477: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4472: \"$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*
@@ -4501,16 +4496,16 @@ done
 
 
 echo $ac_n "checking whether struct sockaddr_in6 is in netinet/in.h""... $ac_c" 1>&6
-echo "configure:4505: checking whether struct sockaddr_in6 is in netinet/in.h" >&5
+echo "configure:4500: checking whether struct sockaddr_in6 is in netinet/in.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 4507 "configure"
+#line 4502 "configure"
 #include "confdefs.h"
 #include <netinet/in.h>
 int main() {
 struct sockaddr_in6 addr6;
 ; return 0; }
 EOF
-if { (eval echo configure:4514: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4509: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_INET6 1
@@ -4526,16 +4521,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for socklen_t in sys/socket.h""... $ac_c" 1>&6
-echo "configure:4530: checking for socklen_t in sys/socket.h" >&5
+echo "configure:4525: checking for socklen_t in sys/socket.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 4532 "configure"
+#line 4527 "configure"
 #include "confdefs.h"
 #include <sys/socket.h>
 int main() {
 socklen_t x = 5;
 ; return 0; }
 EOF
-if { (eval echo configure:4539: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4534: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_SOCKLEN_T 1
@@ -4551,16 +4546,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for tm_gmtoff in struct tm""... $ac_c" 1>&6
-echo "configure:4555: checking for tm_gmtoff in struct tm" >&5
+echo "configure:4550: checking for tm_gmtoff in struct tm" >&5
 cat > conftest.$ac_ext <<EOF
-#line 4557 "configure"
+#line 4552 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 struct tm tim; tim.tm_gmtoff = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:4564: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4559: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define STRUCT_TM_HAS_GMTOFF 1
@@ -4573,16 +4568,16 @@ else
   rm -rf conftest*
   echo "$ac_t""no" 1>&6
    echo $ac_n "checking for global timezone variable""... $ac_c" 1>&6
-echo "configure:4577: checking for global timezone variable" >&5
+echo "configure:4572: checking for global timezone variable" >&5
             cat > conftest.$ac_ext <<EOF
-#line 4579 "configure"
+#line 4574 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 long z2 = timezone;
 ; return 0; }
 EOF
-if { (eval echo configure:4586: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4581: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_TIMEZONE 1
@@ -4602,19 +4597,19 @@ 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""... $ac_c" 1>&6
-echo "configure:4606: checking for working alloca.h" >&5
+echo "configure:4601: checking for working alloca.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4611 "configure"
+#line 4606 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() {
 char *p = alloca(2 * sizeof(int));
 ; return 0; }
 EOF
-if { (eval echo configure:4618: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4613: \"$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
@@ -4635,12 +4630,12 @@ EOF
 fi
 
 echo $ac_n "checking for alloca""... $ac_c" 1>&6
-echo "configure:4639: checking for alloca" >&5
+echo "configure:4634: checking for alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4644 "configure"
+#line 4639 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -4668,7 +4663,7 @@ int main() {
 char *p = (char *) alloca(1);
 ; return 0; }
 EOF
-if { (eval echo configure:4672: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4667: \"$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
@@ -4700,12 +4695,12 @@ EOF
 
 
 echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:4704: checking whether alloca needs Cray hooks" >&5
+echo "configure:4699: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4709 "configure"
+#line 4704 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -4730,12 +4725,12 @@ 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:4734: checking for $ac_func" >&5
+echo "configure:4729: 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 4739 "configure"
+#line 4734 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4758,7 +4753,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4762: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4757: \"$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
@@ -4785,7 +4780,7 @@ done
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:4789: checking stack direction for C alloca" >&5
+echo "configure:4784: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4793,7 +4788,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 4797 "configure"
+#line 4792 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -4812,7 +4807,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:4816: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4811: \"$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
@@ -4839,7 +4834,7 @@ 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:4843: checking for $ac_word" >&5
+echo "configure:4838: 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
diff --git a/libjava/configure.in b/libjava/configure.in
index 8fa467f..46cfa21 100644
--- a/libjava/configure.in
+++ b/libjava/configure.in
@@ -342,12 +342,7 @@ else
       AC_MSG_ERROR([no function found to get the time])
    fi
 
-   # We require memmove.
-   memmove_found=no
-   AC_CHECK_FUNCS(memmove, memmove_found=yes)
-   if test "$memmove_found" = no; then
-      AC_MSG_ERROR([memmove is required])
-   fi
+   AC_CHECK_FUNCS(memmove)
 
    # We require memcpy.
    memcpy_found=no
diff --git a/libjava/java/lang/natSystem.cc b/libjava/java/lang/natSystem.cc
index 4f67ee9..b1effaf 100644
--- a/libjava/java/lang/natSystem.cc
+++ b/libjava/java/lang/natSystem.cc
@@ -171,9 +171,14 @@ java::lang::System::arraycopy (jobject src, jint src_offset,
 	dst_elts = (char *) elements ((jdoubleArray) dst);
       dst_elts += size * dst_offset;
 
+#if HAVE_MEMMOVE
       // We don't bother trying memcpy.  It can't be worth the cost of
       // the check.
-      memmove ((void *) dst_elts, (void *) src_elts, count * size);
+      // Don't cast to (void*), as memmove may expect (char*)
+      memmove (dst_elts, src_elts, count * size);
+#else
+      bcopy (src_elts, dst_elts, count * size);
+#endif
     }
   else
     {