diff --git a/configure b/configure
index 5afd2eb..0f6add3 100755
--- a/configure
+++ b/configure
@@ -1,7 +1,7 @@
 #! /bin/sh
 
 # Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.10 
+# Generated automatically using autoconf version 2.12 
 # Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
 #
 # This configure script is free software; the Free Software Foundation
@@ -49,6 +49,8 @@ mandir='${prefix}/man'
 # Initialize some other variables.
 subdirs=
 MFLAGS= MAKEFLAGS=
+# Maximum number of lines to put in a shell here document.
+ac_max_here_lines=12
 
 ac_prev=
 for ac_option
@@ -330,7 +332,7 @@ EOF
     verbose=yes ;;
 
   -version | --version | --versio | --versi | --vers)
-    echo "configure generated by autoconf version 2.10"
+    echo "configure generated by autoconf version 2.12"
     exit 0 ;;
 
   -with-* | --with-*)
@@ -432,11 +434,14 @@ do
 done
 
 # NLS nuisances.
-# Only set LANG and LC_ALL to C if already set.
-# These must not be set unconditionally because not all systems understand
-# e.g. LANG=C (notably SCO).
-if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+# Only set these to C if already set.  These must not be set unconditionally
+# because not all systems understand e.g. LANG=C (notably SCO).
+# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
+# Non-C LC_CTYPE values break the ctype check.
 if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -rf conftest* confdefs.h
@@ -498,6 +503,7 @@ ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
 
 if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
   # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
@@ -540,6 +546,7 @@ 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:550: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -554,15 +561,16 @@ NONE)
 esac
 
 host=`$ac_config_sub $host_alias`
-host_cpu=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
-host_vendor=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
-host_os=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 
 # 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:574: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -591,6 +599,7 @@ if test -z "$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:603: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -637,7 +646,47 @@ fi
   test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
 fi
 
+echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
+echo "configure:651: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+cat > conftest.$ac_ext <<EOF
+#line 661 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+if { (eval echo configure:665: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  ac_cv_prog_cc_works=yes
+  # If we can't run a trivial program, we are probably using a cross compiler.
+  if (./conftest; exit) 2>/dev/null; then
+    ac_cv_prog_cc_cross=no
+  else
+    ac_cv_prog_cc_cross=yes
+  fi
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_prog_cc_works=no
+fi
+rm -fr conftest*
+
+echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
+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""... $ac_c" 1>&6
+echo "configure:685: checking whether the C compiler ($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""... $ac_c" 1>&6
+echo "configure:690: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -646,7 +695,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:650: \"$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:699: \"$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
@@ -654,29 +703,34 @@ fi
 fi
 
 echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+
 if test $ac_cv_prog_gcc = yes; then
   GCC=yes
-  if test "${CFLAGS+set}" != set; then
-    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+echo "configure:714: checking whether ${CC-cc} accepts -g" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   echo 'void f(){}' > conftest.c
 if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
-  ac_cv_prog_gcc_g=yes
+  ac_cv_prog_cc_g=yes
 else
-  ac_cv_prog_gcc_g=no
+  ac_cv_prog_cc_g=no
 fi
 rm -f conftest*
 
 fi
 
-echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
-    if test $ac_cv_prog_gcc_g = yes; then
-      CFLAGS="-g -O"
-    else
-      CFLAGS="-O"
-    fi
+echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
   fi
 else
   GCC=
@@ -684,6 +738,7 @@ else
 fi
 
 echo $ac_n "checking for POSIXized ISC""... $ac_c" 1>&6
+echo "configure:742: checking for POSIXized ISC" >&5
 if test -d /etc/conf/kconfig.d &&
   grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1
 then
@@ -707,28 +762,29 @@ fi
   case "$host" in
     *-*-linux* )
     echo $ac_n "checking for broken Linux that needs -static with -g""... $ac_c" 1>&6
+echo "configure:766: checking for broken Linux that needs -static with -g" >&5
     if eval "test \"`echo '$''{'scsh_cv_linux_static_debug'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 716 "configure"
+#line 772 "configure"
 #include "confdefs.h"
 
-int main() { return 0; }
-int t() {
+int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:724: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   scsh_cv_linux_static_debug=no
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   scsh_cv_linux_static_debug=yes
 fi
 rm -f conftest*
-
 fi
 
     echo "$ac_t""$scsh_cv_linux_static_debug" 1>&6
@@ -749,11 +805,12 @@ 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""... $ac_c" 1>&6
+echo "configure:809: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
-    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH; do
     # Account for people who put trailing slashes in PATH elements.
     case "$ac_dir/" in
@@ -776,7 +833,7 @@ else
       ;;
     esac
   done
-  IFS="$ac_save_ifs"
+  IFS="$ac_save_IFS"
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
@@ -800,6 +857,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:861: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -826,15 +884,15 @@ else
 fi
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
+echo "configure:888: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 834 "configure"
+#line 893 "configure"
 #include "confdefs.h"
 
-int main() { return 0; }
-int t() {
+int main() {
 
 /* Ultrix mips cc rejects this.  */
 typedef int charset[2]; const charset x;
@@ -880,15 +938,16 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:884: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:942: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   ac_cv_c_const=no
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$ac_cv_c_const" 1>&6
@@ -900,85 +959,61 @@ EOF
 fi
 
 
-# If we cannot run a trivial program, we must be cross compiling.
-echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test "$cross_compiling" = yes; then
-  ac_cv_c_cross=yes
-else
-cat > conftest.$ac_ext <<EOF
-#line 913 "configure"
-#include "confdefs.h"
-main(){return(0);}
-EOF
-{ (eval echo configure:917: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
-  ac_cv_c_cross=no
-else
-  ac_cv_c_cross=yes
-fi
-fi
-rm -fr conftest*
-fi
-
-echo "$ac_t""$ac_cv_c_cross" 1>&6
-cross_compiling=$ac_cv_c_cross
-
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
+echo "configure:964: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 937 "configure"
+#line 971 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
-int main() { return 0; }
-int t() {
+int main() {
 
 #if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
  bogus endian macros
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:949: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:982: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 953 "configure"
+#line 986 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
-int main() { return 0; }
-int t() {
+int main() {
 
 #if BYTE_ORDER != BIG_ENDIAN
  not big endian
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:965: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   ac_cv_c_bigendian=no
 fi
 rm -f conftest*
-
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
 fi
 rm -f conftest*
-
 if test $ac_cv_c_bigendian = unknown; then
 if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
-cat > conftest.$ac_ext <<EOF
-#line 982 "configure"
+  cat > conftest.$ac_ext <<EOF
+#line 1017 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -991,14 +1026,18 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-{ (eval echo configure:995: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
+if { (eval echo configure:1030: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
   ac_cv_c_bigendian=no
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
   ac_cv_c_bigendian=yes
 fi
-fi
 rm -fr conftest*
+fi
+
 fi
 fi
 
@@ -1077,21 +1116,22 @@ EOF
     # gross, but needed for some older a.out systems for 0.4.x
     LIBS=-lc
     
-  echo $ac_n "checking for Linux using ELF""... $ac_c" 1>&6
-  if eval "test \"`echo '$''{'scsh_cv_linux_elf'+set}'`\" = set"; then
+  echo $ac_n "checking for ELF""... $ac_c" 1>&6
+echo "configure:1121: checking for ELF" >&5
+  if eval "test \"`echo '$''{'scsh_cv_elf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     touch conftest.c
-    if ${CC} -v conftest.c 2>&1 | grep -q __ELF__ ; then
-      scsh_cv_linux_elf=yes
+    if ${CC} -v -o a.out conftest.c 2>&1 | grep -q __ELF__ ; then
+      scsh_cv_elf=yes
     else
-      scsh_cv_linux_elf=no
+      scsh_cv_elf=no
     fi
 fi
 
-  echo "$ac_t""$scsh_cv_linux_elf" 1>&6
-  if test $scsh_cv_linux_elf = yes; then
+  echo "$ac_t""$scsh_cv_elf" 1>&6
+  if test $scsh_cv_elf = yes; then
     LDFLAGS=-rdynamic
   fi
   rm -f conftest.c a.out
@@ -1101,6 +1141,27 @@ fi
   ## NetBSD and FreeBSD ( and maybe 386BSD also)
   *-*-*bsd* )
     dir=bsd
+    
+  echo $ac_n "checking for ELF""... $ac_c" 1>&6
+echo "configure:1147: checking for ELF" >&5
+  if eval "test \"`echo '$''{'scsh_cv_elf'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    touch conftest.c
+    if ${CC} -v -o a.out conftest.c 2>&1 | grep -q __ELF__ ; then
+      scsh_cv_elf=yes
+    else
+      scsh_cv_elf=no
+    fi
+fi
+
+  echo "$ac_t""$scsh_cv_elf" 1>&6
+  if test $scsh_cv_elf = yes; then
+    LDFLAGS=-rdynamic
+  fi
+  rm -f conftest.c a.out
+
   ;;
   
   ## NeXT
@@ -1118,6 +1179,7 @@ EOF
     dir=irix
     
   echo $ac_n "checking ${CC} for -cckr""... $ac_c" 1>&6
+echo "configure:1183: checking ${CC} for -cckr" >&5
   if eval "test \"`echo '$''{'s48_cv_cflag_ckr'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1177,30 +1239,32 @@ esac
 rm -f $srcdir/scsh/machine
 ln -s $srcdir/$dir $srcdir/scsh/machine
 
-echo $ac_n "checking for -lm""... $ac_c" 1>&6
-ac_lib_var=`echo m'_'sqrt | tr './+\055' '__p_'`
+echo $ac_n "checking for sqrt in -lm""... $ac_c" 1>&6
+echo "configure:1244: checking for sqrt in -lm" >&5
+ac_lib_var=`echo m'_'sqrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1183 "configure"
+#line 1252 "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
     builtin and then its argument prototype would still apply.  */
 char sqrt();
 
-int main() { return 0; }
-int t() {
+int main() {
 sqrt()
 ; return 0; }
 EOF
-if { (eval echo configure:1195: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1210,7 +1274,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo m | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo m | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1221,30 +1286,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -lgen""... $ac_c" 1>&6
-ac_lib_var=`echo gen'_'pathfind | tr './+\055' '__p_'`
+echo $ac_n "checking for pathfind in -lgen""... $ac_c" 1>&6
+echo "configure:1291: checking for pathfind in -lgen" >&5
+ac_lib_var=`echo gen'_'pathfind | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lgen  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1227 "configure"
+#line 1299 "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
     builtin and then its argument prototype would still apply.  */
 char pathfind();
 
-int main() { return 0; }
-int t() {
+int main() {
 pathfind()
 ; return 0; }
 EOF
-if { (eval echo configure:1239: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1254,7 +1321,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo gen | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo gen | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1265,30 +1333,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -lnsl""... $ac_c" 1>&6
-ac_lib_var=`echo nsl'_'gethostbyaddr | tr './+\055' '__p_'`
+echo $ac_n "checking for gethostbyaddr in -lnsl""... $ac_c" 1>&6
+echo "configure:1338: checking for gethostbyaddr in -lnsl" >&5
+ac_lib_var=`echo nsl'_'gethostbyaddr | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1271 "configure"
+#line 1346 "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
     builtin and then its argument prototype would still apply.  */
 char gethostbyaddr();
 
-int main() { return 0; }
-int t() {
+int main() {
 gethostbyaddr()
 ; return 0; }
 EOF
-if { (eval echo configure:1283: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1357: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1298,7 +1368,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo nsl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo nsl | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1309,30 +1380,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -lsocket""... $ac_c" 1>&6
-ac_lib_var=`echo socket'_'socket | tr './+\055' '__p_'`
+echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
+echo "configure:1385: checking for socket in -lsocket" >&5
+ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1315 "configure"
+#line 1393 "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
     builtin and then its argument prototype would still apply.  */
 char socket();
 
-int main() { return 0; }
-int t() {
+int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:1327: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1404: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1342,7 +1415,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo socket | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo socket | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1353,30 +1427,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -lelf""... $ac_c" 1>&6
-ac_lib_var=`echo elf'_'nlist | tr './+\055' '__p_'`
+echo $ac_n "checking for nlist in -lelf""... $ac_c" 1>&6
+echo "configure:1432: checking for nlist in -lelf" >&5
+ac_lib_var=`echo elf'_'nlist | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lelf  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1359 "configure"
+#line 1440 "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
     builtin and then its argument prototype would still apply.  */
 char nlist();
 
-int main() { return 0; }
-int t() {
+int main() {
 nlist()
 ; return 0; }
 EOF
-if { (eval echo configure:1371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1451: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1386,7 +1462,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo elf | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo elf | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1397,30 +1474,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -lld""... $ac_c" 1>&6
-ac_lib_var=`echo ld'_'ldopen | tr './+\055' '__p_'`
+echo $ac_n "checking for ldopen in -lld""... $ac_c" 1>&6
+echo "configure:1479: checking for ldopen in -lld" >&5
+ac_lib_var=`echo ld'_'ldopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1403 "configure"
+#line 1487 "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
     builtin and then its argument prototype would still apply.  */
 char ldopen();
 
-int main() { return 0; }
-int t() {
+int main() {
 ldopen()
 ; return 0; }
 EOF
-if { (eval echo configure:1415: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1498: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1430,7 +1509,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo ld | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo ld | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1441,30 +1521,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -ldl""... $ac_c" 1>&6
-ac_lib_var=`echo dl'_'dlopen | tr './+\055' '__p_'`
+echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
+echo "configure:1526: checking for dlopen in -ldl" >&5
+ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1447 "configure"
+#line 1534 "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
     builtin and then its argument prototype would still apply.  */
 char dlopen();
 
-int main() { return 0; }
-int t() {
+int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:1459: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1545: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1474,7 +1556,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo dl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo dl | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1485,30 +1568,32 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for -ldld""... $ac_c" 1>&6
-ac_lib_var=`echo dld'_'shl_findsym | tr './+\055' '__p_'`
+echo $ac_n "checking for shl_findsym in -ldld""... $ac_c" 1>&6
+echo "configure:1573: checking for shl_findsym in -ldld" >&5
+ac_lib_var=`echo dld'_'shl_findsym | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1491 "configure"
+#line 1581 "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
     builtin and then its argument prototype would still apply.  */
 char shl_findsym();
 
-int main() { return 0; }
-int t() {
+int main() {
 shl_findsym()
 ; return 0; }
 EOF
-if { (eval echo configure:1503: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1592: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=no"
 fi
@@ -1518,7 +1603,8 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo dld | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+    ac_tr_lib=HAVE_LIB`echo dld | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
@@ -1531,11 +1617,12 @@ fi
 
 
 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
+echo "configure:1621: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1533 "configure"
+#line 1626 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -1548,20 +1635,20 @@ extern "C" void (*signal (int, void (*)(int)))(int);
 void (*signal ()) ();
 #endif
 
-int main() { return 0; }
-int t() {
+int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:1551: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1643: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   ac_cv_type_signal=int
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$ac_cv_type_signal" 1>&6
@@ -1571,6 +1658,7 @@ EOF
 
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
+echo "configure:1662: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1585,33 +1673,37 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1583 "configure"
+#line 1677 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1589: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1683: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1598 "configure"
+#line 1694 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1604: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1700: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   CPP=/lib/cpp
 fi
@@ -1626,26 +1718,29 @@ else
 fi
 echo "$ac_t""$CPP" 1>&6
 
-for ac_hdr in libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h sys/un.h
+for ac_hdr in libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h
 do
-ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1726: 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 1632 "configure"
+#line 1731 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1637: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1736: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
   eval "ac_cv_header_$ac_safe=yes"
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_header_$ac_safe=no"
 fi
@@ -1653,7 +1748,47 @@ rm -f conftest*
 fi
 if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | tr 'abcdefghijklmnopqrstuvwxyz./\055' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ___'`
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+for ac_hdr in sys/un.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1766: 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 1771 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1776: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_hdr 1
 EOF
@@ -1666,11 +1801,12 @@ done
 for ac_func in strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1805: 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 1668 "configure"
+#line 1810 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1680,8 +1816,7 @@ else
     builtin and then its argument prototype would still apply.  */
 char $ac_func();
 
-int main() { return 0; }
-int t() {
+int main() {
 
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
@@ -1694,16 +1829,18 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1692: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1833: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=no"
 fi
 rm -f conftest*
-
 fi
+
 if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
   echo "$ac_t""yes" 1>&6
     ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
@@ -1719,11 +1856,12 @@ done
 for ac_func in dlopen gettimeofday ftime nlist select setitimer sigaction
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1860: 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 1721 "configure"
+#line 1865 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1733,8 +1871,7 @@ else
     builtin and then its argument prototype would still apply.  */
 char $ac_func();
 
-int main() { return 0; }
-int t() {
+int main() {
 
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
@@ -1747,16 +1884,18 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1745: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1888: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=no"
 fi
 rm -f conftest*
-
 fi
+
 if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
   echo "$ac_t""yes" 1>&6
     ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
@@ -1772,11 +1911,12 @@ done
 for ac_func in socket chroot
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1915: 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 1774 "configure"
+#line 1920 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1786,8 +1926,7 @@ else
     builtin and then its argument prototype would still apply.  */
 char $ac_func();
 
-int main() { return 0; }
-int t() {
+int main() {
 
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
@@ -1800,16 +1939,18 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1798: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1943: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=no"
 fi
 rm -f conftest*
-
 fi
+
 if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
   echo "$ac_t""yes" 1>&6
     ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
@@ -1825,6 +1966,7 @@ done
 
 
   echo $ac_n "checking for RISC/OS POSIX library lossage""... $ac_c" 1>&6
+echo "configure:1970: checking for RISC/OS POSIX library lossage" >&5
   if eval "test \"`echo '$''{'s48_cv_posix_libc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1843,6 +1985,7 @@ fi
 
 
   echo $ac_n "checking whether we can use -O2""... $ac_c" 1>&6
+echo "configure:1989: checking whether we can use -O2" >&5
   if eval "test \"`echo '$''{'s48_cv_cflag_o2'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1870,6 +2013,7 @@ fi
 
 
   echo $ac_n "checking for underscore before symbols""... $ac_c" 1>&6
+echo "configure:2017: checking for underscore before symbols" >&5
   if eval "test \"`echo '$''{'s48_cv_uscore'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1895,14 +2039,15 @@ EOF
 
     if test $ac_cv_func_dlopen = yes ; then
 	echo $ac_n "checking whether dlsym always adds an underscore for us""... $ac_c" 1>&6
+echo "configure:2043: checking whether dlsym always adds an underscore for us" >&5
 	if eval "test \"`echo '$''{'s48_cv_dlsym_adds_uscore'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
-cat > conftest.$ac_ext <<EOF
-#line 1900 "configure"
+  cat > conftest.$ac_ext <<EOF
+#line 2051 "configure"
 #include "confdefs.h"
 
 #include <dlfcn.h>
@@ -1913,18 +2058,22 @@ main() { void *self, *ptr1, *ptr2; self=dlopen(NULL,RTLD_LAZY);
     if(ptr1 && !ptr2) exit(0); } exit(1); } 
 
 EOF
-{ (eval echo configure:1911: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
+if { (eval echo configure:2062: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
   s48_cv_dlsym_adds_uscore=yes
 	cat >> confdefs.h <<\EOF
 #define DLSYM_ADDS_USCORE 1
 EOF
  
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
   s48_cv_dlsym_adds_uscore=no
 fi
-fi
 rm -fr conftest*
+fi
+
 fi
 
 
@@ -1934,29 +2083,30 @@ fi
 
 
   echo $ac_n "checking for n_name""... $ac_c" 1>&6
+echo "configure:2087: checking for n_name" >&5
   if eval "test \"`echo '$''{'s48_cv_nlist'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 1937 "configure"
+#line 2093 "configure"
 #include "confdefs.h"
 #include <nlist.h>
-int main() { return 0; }
-int t() {
+int main() {
 struct nlist name_list;
                     name_list.n_name = "foo";
 ; return 0; }
 EOF
-if { (eval echo configure:1946: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2101: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   s48_cv_nlist=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   s48_cv_nlist=no
 fi
 rm -f conftest*
-
 fi
 
   echo "$ac_t""$s48_cv_nlist" 1>&6
@@ -1969,28 +2119,29 @@ EOF
 
 
   echo $ac_n "checking for _cnt""... $ac_c" 1>&6
+echo "configure:2123: checking for _cnt" >&5
   if eval "test \"`echo '$''{'s48_cv__cnt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 1972 "configure"
+#line 2129 "configure"
 #include "confdefs.h"
 #include <stdio.h>
-int main() { return 0; }
-int t() {
+int main() {
 return stdin->_cnt;
 ; return 0; }
 EOF
-if { (eval echo configure:1980: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2136: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   s48_cv__cnt=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   s48_cv__cnt=no
 fi
 rm -f conftest*
-
 fi
 
   echo "$ac_t""$s48_cv__cnt" 1>&6
@@ -2004,28 +2155,29 @@ EOF
 
 
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
+echo "configure:2159: checking for tzname" >&5
   if eval "test \"`echo '$''{'scsh_cv_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 2007 "configure"
+#line 2165 "configure"
 #include "confdefs.h"
 #include <time.h>
-int main() { return 0; }
-int t() {
+int main() {
 return (int) tzname;
 ; return 0; }
 EOF
-if { (eval echo configure:2015: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2172: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scsh_cv_tzname=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   scsh_cv_tzname=no
 fi
 rm -f conftest*
-
 fi
 
   echo "$ac_t""$scsh_cv_tzname" 1>&6
@@ -2038,29 +2190,30 @@ EOF
 
 
   echo $ac_n "checking for gmtoff""... $ac_c" 1>&6
+echo "configure:2194: checking for gmtoff" >&5
   if eval "test \"`echo '$''{'scsh_cv_gmtoff'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 2041 "configure"
+#line 2200 "configure"
 #include "confdefs.h"
 #include <time.h>
-int main() { return 0; }
-int t() {
+int main() {
 struct tm time;
 		    return time.tm_gmtoff;
 ; return 0; }
 EOF
-if { (eval echo configure:2050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2208: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scsh_cv_gmtoff=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   scsh_cv_gmtoff=no
 fi
 rm -f conftest*
-
 fi
 
   echo "$ac_t""$scsh_cv_gmtoff" 1>&6
@@ -2073,29 +2226,30 @@ EOF
 
 
   echo $ac_n "checking for const sys_errlist""... $ac_c" 1>&6
+echo "configure:2230: checking for const sys_errlist" >&5
   if eval "test \"`echo '$''{'scsh_cv_const_sys_errlist'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 2076 "configure"
+#line 2236 "configure"
 #include "confdefs.h"
 #include <errno.h>
                     #include <unistd.h>
-int main() { return 0; }
-int t() {
+int main() {
 const extern char *sys_errlist[];
 ; return 0; }
 EOF
-if { (eval echo configure:2085: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2244: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scsh_cv_const_sys_errlist=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   scsh_cv_const_sys_errlist=no
 fi
 rm -f conftest*
-
 fi
 
   echo "$ac_t""$scsh_cv_const_sys_errlist" 1>&6
@@ -2120,6 +2274,7 @@ CFLAGS1=${CFLAGS}
 
 
 
+
 trap '' 1 2 15
 cat > confcache <<\EOF
 # This file is a shell script that caches the results of configure
@@ -2137,11 +2292,25 @@ cat > confcache <<\EOF
 # --recheck option to rerun configure.
 #
 EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
 # Ultrix sh set writes to stderr and can't be redirected directly,
 # and sets the high bit in the cache file unless we assign to the vars.
 (set) 2>&1 |
-  sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
-  >> confcache
+  case `(ac_space=' '; set) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
 if cmp -s $cache_file confcache; then
   :
 else
@@ -2196,7 +2365,7 @@ do
     echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
     exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
   -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
-    echo "$CONFIG_STATUS generated by autoconf version 2.10"
+    echo "$CONFIG_STATUS generated by autoconf version 2.12"
     exit 0 ;;
   -help | --help | --hel | --he | --h)
     echo "\$ac_cs_usage"; exit 0 ;;
@@ -2248,29 +2417,65 @@ s%@INSTALL_DATA@%$INSTALL_DATA%g
 s%@RANLIB@%$RANLIB%g
 s%@CPP@%$CPP%g
 s%@AIX_P@%$AIX_P%g
-s%@EXEEXT@%$EXEEXT%g
 s%@AR@%$AR%g
 s%@CFLAGS1@%$CFLAGS1%g
+s%@EXEEXT@%$EXEEXT%g
 s%@ENDIAN@%$ENDIAN%g
 s%@LDFLAGS_AIX@%$LDFLAGS_AIX%g
 s%@TMPDIR@%$TMPDIR%g
 
 CEOF
 EOF
+
+cat >> $CONFIG_STATUS <<\EOF
+
+# Split the substitutions into bite-sized pieces for seds with
+# small command number limits, like on Digital OSF/1 and HP-UX.
+ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
+ac_file=1 # Number of current file.
+ac_beg=1 # First line for current file.
+ac_end=$ac_max_sed_cmds # Line after last line for current file.
+ac_more_lines=:
+ac_sed_cmds=""
+while $ac_more_lines; do
+  if test $ac_beg -gt 1; then
+    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
+  else
+    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
+  fi
+  if test ! -s conftest.s$ac_file; then
+    ac_more_lines=false
+    rm -f conftest.s$ac_file
+  else
+    if test -z "$ac_sed_cmds"; then
+      ac_sed_cmds="sed -f conftest.s$ac_file"
+    else
+      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
+    fi
+    ac_file=`expr $ac_file + 1`
+    ac_beg=$ac_end
+    ac_end=`expr $ac_end + $ac_max_sed_cmds`
+  fi
+done
+if test -z "$ac_sed_cmds"; then
+  ac_sed_cmds=cat
+fi
+EOF
+
 cat >> $CONFIG_STATUS <<EOF
 
 CONFIG_FILES=\${CONFIG_FILES-"Makefile scsh/regexp/Makefile scsh/endian.scm scsh/static.scm"}
 EOF
 cat >> $CONFIG_STATUS <<\EOF
 for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
-  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
        ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
   *) ac_file_in="${ac_file}.in" ;;
   esac
 
-  # Adjust relative srcdir, etc. for subdirectories.
+  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
 
   # Remove last slash and all that follows it.  Not all systems have dirname.
   ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
@@ -2298,6 +2503,7 @@ for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
   [/$]*) INSTALL="$ac_given_INSTALL" ;;
   *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
   esac
+
   echo creating "$ac_file"
   rm -f "$ac_file"
   configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
@@ -2306,14 +2512,16 @@ for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
 # $configure_input" ;;
   *) ac_comsub= ;;
   esac
+
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
   sed -e "$ac_comsub
 s%@configure_input@%$configure_input%g
 s%@srcdir@%$srcdir%g
 s%@top_srcdir@%$top_srcdir%g
 s%@INSTALL@%$INSTALL%g
-" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
 fi; done
-rm -f conftest.subs
+rm -f conftest.s*
 
 # These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
 # NAME is the cpp macro being defined and VALUE is the value it is being given.
@@ -2334,11 +2542,17 @@ ac_eB='$%\1#\2define\3'
 ac_eC=' '
 ac_eD='%g'
 
-CONFIG_HEADERS=${CONFIG_HEADERS-"sysdep.h"}
+if test "${CONFIG_HEADERS+set}" != set; then
+EOF
+cat >> $CONFIG_STATUS <<EOF
+  CONFIG_HEADERS="sysdep.h"
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+fi
 for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
-  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
        ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
   *) ac_file_in="${ac_file}.in" ;;
   esac
@@ -2346,7 +2560,8 @@ for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
   echo creating $ac_file
 
   rm -f conftest.frag conftest.in conftest.out
-  cp $ac_given_srcdir/$ac_file_in conftest.in
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+  cat $ac_file_inputs > conftest.in
 
 EOF
 
@@ -2374,8 +2589,6 @@ EOF
 
 # Break up conftest.vals because some shells have a limit on
 # the size of here documents, and old seds have small limits too.
-# Maximum number of lines to put in a single here document.
-ac_max_here_lines=12
 
 rm -f conftest.tail
 while :
@@ -2417,7 +2630,11 @@ cat >> $CONFIG_STATUS <<\EOF
   fi
 fi; done
 
+EOF
+cat >> $CONFIG_STATUS <<EOF
 
+EOF
+cat >> $CONFIG_STATUS <<\EOF
 
 exit 0
 EOF
diff --git a/configure.in b/configure.in
index 19d5811..66ae165 100644
--- a/configure.in
+++ b/configure.in
@@ -166,17 +166,17 @@ AC_DEFUN(SCSH_GMTOFF,[
 ])
 
 dnl -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-AC_DEFUN(SCSH_LINUX_ELF, [
-  AC_MSG_CHECKING(for Linux using ELF)
-  AC_CACHE_VAL(scsh_cv_linux_elf,[
+AC_DEFUN(SCSH_ELF, [
+  AC_MSG_CHECKING(for ELF)
+  AC_CACHE_VAL(scsh_cv_elf,[
     touch conftest.c
     if ${CC} -v -o a.out conftest.c 2>&1 | grep -q __ELF__ ; then
-      scsh_cv_linux_elf=yes
+      scsh_cv_elf=yes
     else
-      scsh_cv_linux_elf=no
+      scsh_cv_elf=no
     fi])
-  AC_MSG_RESULT($scsh_cv_linux_elf)
-  if test $scsh_cv_linux_elf = yes; then
+  AC_MSG_RESULT($scsh_cv_elf)
+  if test $scsh_cv_elf = yes; then
     LDFLAGS=-rdynamic
   fi
   rm -f conftest.c a.out
@@ -286,12 +286,13 @@ case "$host" in
     dir=linux
     # gross, but needed for some older a.out systems for 0.4.x
     LIBS=-lc
-    SCSH_LINUX_ELF
+    SCSH_ELF
   ;;
   
   ## NetBSD and FreeBSD ( and maybe 386BSD also)
   *-*-*bsd* )
     dir=bsd
+    SCSH_ELF
   ;;
   
   ## NeXT