Make dynamic linking work on Dec Unix. (Thanks to Clark McGrew)

* configure.in: Check whether dlopen can be found without -ldl.

2 files changed, 269 insertions, 381 deletions

diff --git a/configure b/configure
index 9b051f7d0..4668ff7e4 100755
--- a/configure
+++ b/configure
@@ -21,12 +21,8 @@ ac_help="$ac_help
 ac_help="$ac_help
   --enable-guile-debug    Include internal debugging functions"
 ac_help="$ac_help
-  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]"
-ac_help="$ac_help
   --enable-shared         build shared libraries [default=yes]"
 ac_help="$ac_help
-  --enable-static         build static libraries [default=yes]"
-ac_help="$ac_help
   --with-threads          thread interface"
 
 # Initialize some variables set by options.
@@ -566,7 +562,7 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 # 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""... $ac_c" 1>&6
-echo "configure:570: checking for a BSD compatible install" >&5
+echo "configure:566: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -628,7 +624,7 @@ if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 fi
 
 echo $ac_n "checking whether build environment is sane""... $ac_c" 1>&6
-echo "configure:632: checking whether build environment is sane" >&5
+echo "configure:628: checking whether build environment is sane" >&5
 # Just in case
 sleep 1
 echo timestamp > conftestfile
@@ -675,7 +671,7 @@ test "$program_transform_name" = "" && program_transform_name="s,x,x,"
 
 missing_dir=`cd $ac_aux_dir && pwd`
 echo $ac_n "checking for working aclocal""... $ac_c" 1>&6
-echo "configure:679: checking for working aclocal" >&5
+echo "configure:675: checking for working aclocal" >&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
@@ -688,7 +684,7 @@ else
 fi
 
 echo $ac_n "checking for working autoconf""... $ac_c" 1>&6
-echo "configure:692: checking for working autoconf" >&5
+echo "configure:688: checking for working autoconf" >&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
@@ -701,7 +697,7 @@ else
 fi
 
 echo $ac_n "checking for working automake""... $ac_c" 1>&6
-echo "configure:705: checking for working automake" >&5
+echo "configure:701: checking for working automake" >&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
@@ -714,7 +710,7 @@ else
 fi
 
 echo $ac_n "checking for working autoheader""... $ac_c" 1>&6
-echo "configure:718: checking for working autoheader" >&5
+echo "configure:714: checking for working autoheader" >&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
@@ -727,7 +723,7 @@ else
 fi
 
 echo $ac_n "checking for working makeinfo""... $ac_c" 1>&6
-echo "configure:731: checking for working makeinfo" >&5
+echo "configure:727: checking for working makeinfo" >&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
@@ -740,7 +736,7 @@ else
 fi
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:744: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:740: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -767,7 +763,7 @@ else
 fi
 
 echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
-echo "configure:771: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo "configure:767: checking whether to enable maintainer-specific portions of Makefiles" >&5
     # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
 if test "${enable_maintainer_mode+set}" = set; then
   enableval="$enable_maintainer_mode"
@@ -839,7 +835,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:843: checking for $ac_word" >&5
+echo "configure:839: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -868,7 +864,7 @@ if test -z "$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:872: checking for $ac_word" >&5
+echo "configure:868: 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
@@ -916,7 +912,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:920: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:916: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -926,11 +922,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 930 "configure"
+#line 926 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:934: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:930: \"$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
@@ -950,12 +946,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:954: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:950: checking whether the C compiler ($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""... $ac_c" 1>&6
-echo "configure:959: checking whether we are using GNU C" >&5
+echo "configure:955: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -964,7 +960,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:968: \"$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:964: \"$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
@@ -979,7 +975,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:983: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:979: 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
@@ -1007,7 +1003,7 @@ else
 fi
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1011: checking how to run the C preprocessor" >&5
+echo "configure:1007: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1022,13 +1018,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1026 "configure"
+#line 1022 "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:1032: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1028: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -1039,13 +1035,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1043 "configure"
+#line 1039 "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:1049: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1045: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -1074,7 +1070,7 @@ 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:1078: checking host system type" >&5
+echo "configure:1074: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -1097,7 +1093,7 @@ echo "$ac_t""$host" 1>&6
 # 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:1101: checking for $ac_word" >&5
+echo "configure:1097: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1123,152 +1119,6 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-# Check whether --with-gnu-ld or --without-gnu-ld was given.
-if test "${with_gnu_ld+set}" = set; then
-  withval="$with_gnu_ld"
-  test "$withval" = no || with_gnu_ld=yes
-else
-  with_gnu_ld=no
-fi
-
-
-ac_prog=ld
-if test "$ac_cv_prog_gcc" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  echo $ac_n "checking for ld used by GCC""... $ac_c" 1>&6
-echo "configure:1140: checking for ld used by GCC" >&5
-  ac_prog=`($CC -print-prog-name=ld) 2>&5`
-  case "$ac_prog" in
-  # Accept absolute paths.
-  /*) ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
-elif test "$with_gnu_ld" = yes; then
-  echo $ac_n "checking for GNU ld""... $ac_c" 1>&6
-echo "configure:1156: checking for GNU ld" >&5
-else
-  echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
-echo "configure:1159: checking for non-GNU ld" >&5
-fi
-if eval "test \"`echo '$''{'ac_cv_path_LD'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  LD=${LD-$ac_prog}
-case "$LD" in
-  /*)
-  ac_cv_path_LD="$LD" # Let the user override the test with a path.
-  ;;
-  *)
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog"; then
-      ac_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some GNU ld's only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
-	test "$with_gnu_ld" != no && break
-      else
-        test "$with_gnu_ld" != yes && break
-      fi
-    fi
-  done
-  IFS="$ac_save_ifs"
-  ;;
-esac
-fi
-
-LD="$ac_cv_path_LD"
-if test -n "$LD"; then
-  echo "$ac_t""$LD" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
-test -z "$LD" && { echo "configure: error: no acceptable ld found in \$PATH" 1>&2; exit 1; }
-
-echo $ac_n "checking whether we are using GNU ld""... $ac_c" 1>&6
-echo "configure:1199: checking whether we are using GNU ld" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_gnu_ld'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
-if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' > /dev/null; then
-  ac_cv_prog_gnu_ld=yes
-else
-  ac_cv_prog_gnu_ld=no
-fi
-fi
-
-echo "$ac_t""$ac_cv_prog_gnu_ld" 1>&6
-
-
-echo $ac_n "checking for BSD-compatible nm""... $ac_c" 1>&6
-echo "configure:1215: checking for BSD-compatible nm" >&5
-if eval "test \"`echo '$''{'ac_cv_path_NM'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  case "$NM" in
-/*)
-  ac_cv_path_NM="$NM" # Let the user override the test with a path.
-  ;;
-*)
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in /usr/ucb:$PATH:/bin; do
-    test -z "$ac_dir" && dir=.
-    if test -f $ac_dir/nm; then
-      # Check to see if the nm accepts a BSD-compat flag.
-      if ($ac_dir/nm -B /dev/null 2>&1; exit 0) | grep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -B"
-      elif ($ac_dir/nm -p /dev/null 2>&1; exit 0) | grep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -p"
-      else
-        ac_cv_path_NM="$ac_dir/nm"
-      fi
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-  test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
-  ;;
-esac
-fi
-
-NM="$ac_cv_path_NM"
-echo "$ac_t""$NM" 1>&6
-
-
-echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:1250: checking whether ln -s works" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  rm -f conftestdata
-if ln -s X conftestdata 2>/dev/null
-then
-  rm -f conftestdata
-  ac_cv_prog_LN_S="ln -s"
-else
-  ac_cv_prog_LN_S=ln
-fi
-fi
-LN_S="$ac_cv_prog_LN_S"
-if test "$ac_cv_prog_LN_S" = "ln -s"; then
-  echo "$ac_t""yes" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
-
-
-
-
 
 
 
@@ -1280,47 +1130,22 @@ LIBTOOL='$(top_builddir)/libtool'
 # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
-  if test "$enableval" = no; then
-  enable_shared=no
-else
-  enable_shared=yes
-fi
-fi
-
-libtool_shared=
-test "$enable_shared" = no && libtool_shared=" --disable-shared"
-
-# Check whether --enable-static or --disable-static was given.
-if test "${enable_static+set}" = set; then
-  enableval="$enable_static"
-  if test "$enableval" = no; then
-  enable_static=no
+  test "$enableval" = no && libtool_shared=" --disable-shared"
 else
-  enable_static=yes
-fi
+  libtool_shared=
 fi
 
-libtool_static=
-test "$enable_static" = no && libtool_static=" --disable-static"
 
-libtool_flags="$libtool_shared$libtool_static"
+libtool_flags="$libtool_shared"
 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
-test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
 
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
 case "$host" in
 *-*-irix6*)
-  ac_save_CFLAGS="$CFLAGS"
-  # -n32 always needs to be added to the linker when using GCC.
-  test "$ac_cv_prog_gcc" = yes && CFLAGS="$CFLAGS -n32"
-  for f in '-32' '-64' '-cckr' '-n32' '-mips1' '-mips2' '-mips3' '-mips4'; do
-    if echo " $CC $CFLAGS " | egrep -e "[ 	]$f[	 ]" > /dev/null; then
-      LD="${LD-ld} $f"
-    fi
-  done
-  CFLAGS="$ac_save_CFLAGS"
+  # For IRIX 6, ld needs -n32 if cc uses it.
+  if echo " $CC $CFLAGS " | egrep -e '[ 	]-n32[	 ]' > /dev/null; then
+    LD="${LD-ld} -n32"
+  fi
   ;;
 
 *-*-sco3.2v5*)
@@ -1330,17 +1155,16 @@ case "$host" in
 esac
 
 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
-CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
+CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
 $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 || { echo "configure: error: libtool configure failed" 1>&2; exit 1; }
 
 
 echo $ac_n "checking for AIX""... $ac_c" 1>&6
-echo "configure:1342: checking for AIX" >&5
+echo "configure:1166: checking for AIX" >&5
 cat > conftest.$ac_ext <<EOF
-#line 1344 "configure"
+#line 1168 "configure"
 #include "confdefs.h"
 #ifdef _AIX
   yes
@@ -1362,7 +1186,7 @@ rm -f conftest*
 
 
 echo $ac_n "checking for POSIXized ISC""... $ac_c" 1>&6
-echo "configure:1366: checking for POSIXized ISC" >&5
+echo "configure:1190: 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
@@ -1384,17 +1208,17 @@ fi
 
 ac_safe=`echo "minix/config.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for minix/config.h""... $ac_c" 1>&6
-echo "configure:1388: checking for minix/config.h" >&5
+echo "configure:1212: checking for minix/config.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1393 "configure"
+#line 1217 "configure"
 #include "confdefs.h"
 #include <minix/config.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1398: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1222: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1433,12 +1257,12 @@ fi
 
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:1437: checking for working const" >&5
+echo "configure:1261: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1442 "configure"
+#line 1266 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1487,7 +1311,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:1491: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1315: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -1509,12 +1333,12 @@ fi
 
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1513: checking for ANSI C header files" >&5
+echo "configure:1337: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1518 "configure"
+#line 1342 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1522,7 +1346,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1526: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1350: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1539,7 +1363,7 @@ 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 1543 "configure"
+#line 1367 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1557,7 +1381,7 @@ 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 1561 "configure"
+#line 1385 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1578,7 +1402,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1582 "configure"
+#line 1406 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1589,7 +1413,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1593: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1417: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1617,12 +1441,12 @@ for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr that defines DIR""... $ac_c" 1>&6
-echo "configure:1621: checking for $ac_hdr that defines DIR" >&5
+echo "configure:1445: checking for $ac_hdr that defines DIR" >&5
 if eval "test \"`echo '$''{'ac_cv_header_dirent_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1626 "configure"
+#line 1450 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -1630,7 +1454,7 @@ int main() {
 DIR *dirp = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:1634: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1458: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_header_dirent_$ac_safe=yes"
 else
@@ -1655,7 +1479,7 @@ done
 # Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
 if test $ac_header_dirent = dirent.h; then
 echo $ac_n "checking for opendir in -ldir""... $ac_c" 1>&6
-echo "configure:1659: checking for opendir in -ldir" >&5
+echo "configure:1483: checking for opendir in -ldir" >&5
 ac_lib_var=`echo dir'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1663,7 +1487,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldir  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1667 "configure"
+#line 1491 "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
@@ -1674,7 +1498,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:1678: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1502: \"$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
@@ -1696,7 +1520,7 @@ fi
 
 else
 echo $ac_n "checking for opendir in -lx""... $ac_c" 1>&6
-echo "configure:1700: checking for opendir in -lx" >&5
+echo "configure:1524: checking for opendir in -lx" >&5
 ac_lib_var=`echo x'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1704,7 +1528,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1708 "configure"
+#line 1532 "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
@@ -1715,7 +1539,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:1719: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1543: \"$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
@@ -1738,12 +1562,12 @@ fi
 fi
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:1742: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:1566: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1747 "configure"
+#line 1571 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -1752,7 +1576,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:1756: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1580: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -1773,12 +1597,12 @@ EOF
 fi
 
 echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
-echo "configure:1777: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo "configure:1601: checking for sys/wait.h that is POSIX.1 compatible" >&5
 if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1782 "configure"
+#line 1606 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -1794,7 +1618,7 @@ wait (&s);
 s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
 ; return 0; }
 EOF
-if { (eval echo configure:1798: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1622: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_sys_wait_h=yes
 else
@@ -1818,17 +1642,17 @@ for ac_hdr in libc.h limits.h malloc.h memory.h string.h regex.h rxposix.h rx/rx
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1822: checking for $ac_hdr" >&5
+echo "configure:1646: 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 1827 "configure"
+#line 1651 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1832: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1656: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1859,17 +1683,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1863: checking for $ac_hdr" >&5
+echo "configure:1687: 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 1868 "configure"
+#line 1692 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1873: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1697: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1896,7 +1720,7 @@ fi
 done
 
     echo $ac_n "checking "whether libc.h and unistd.h can be included together"""... $ac_c" 1>&6
-echo "configure:1900: checking "whether libc.h and unistd.h can be included together"" >&5
+echo "configure:1724: checking "whether libc.h and unistd.h can be included together"" >&5
 if eval "test \"`echo '$''{'guile_cv_header_libc_with_unistd'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1907,7 +1731,7 @@ else
           guile_cv_header_libc_with_unistd="yes"
         else
           cat > conftest.$ac_ext <<EOF
-#line 1911 "configure"
+#line 1735 "configure"
 #include "confdefs.h"
 
 #             include <libc.h>
@@ -1917,7 +1741,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1921: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1745: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   guile_cv_header_libc_with_unistd=yes
 else
@@ -1944,12 +1768,12 @@ EOF
 
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:1948: checking for uid_t in sys/types.h" >&5
+echo "configure:1772: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1953 "configure"
+#line 1777 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -1978,7 +1802,7 @@ EOF
 fi
 
 echo $ac_n "checking type of array argument to getgroups""... $ac_c" 1>&6
-echo "configure:1982: checking type of array argument to getgroups" >&5
+echo "configure:1806: checking type of array argument to getgroups" >&5
 if eval "test \"`echo '$''{'ac_cv_type_getgroups'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1986,7 +1810,7 @@ else
   ac_cv_type_getgroups=cross
 else
   cat > conftest.$ac_ext <<EOF
-#line 1990 "configure"
+#line 1814 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Rendell for this test.  */
@@ -2011,7 +1835,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:2015: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1839: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
     ac_cv_type_getgroups=gid_t
 else
@@ -2025,7 +1849,7 @@ fi
 
 if test $ac_cv_type_getgroups = cross; then
         cat > conftest.$ac_ext <<EOF
-#line 2029 "configure"
+#line 1853 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 EOF
@@ -2049,12 +1873,12 @@ EOF
 
 
 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:2053: checking return type of signal handlers" >&5
+echo "configure:1877: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2058 "configure"
+#line 1882 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -2071,7 +1895,7 @@ int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2075: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1899: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
@@ -2090,12 +1914,12 @@ EOF
 
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:2094: checking for mode_t" >&5
+echo "configure:1918: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2099 "configure"
+#line 1923 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2124,7 +1948,7 @@ fi
 
 
 echo $ac_n "checking for main in -lm""... $ac_c" 1>&6
-echo "configure:2128: checking for main in -lm" >&5
+echo "configure:1952: checking for main in -lm" >&5
 ac_lib_var=`echo m'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2132,14 +1956,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2136 "configure"
+#line 1960 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:2143: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1967: \"$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
@@ -2167,12 +1991,12 @@ else
 fi
 
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:2171: checking for gethostbyname" >&5
+echo "configure:1995: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2176 "configure"
+#line 2000 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -2195,7 +2019,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2199: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2023: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -2216,7 +2040,7 @@ fi
 
 if test $ac_cv_func_gethostbyname = no; then
     echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:2220: checking for gethostbyname in -lnsl" >&5
+echo "configure:2044: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2224,7 +2048,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2228 "configure"
+#line 2052 "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
@@ -2235,7 +2059,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:2239: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2063: \"$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
@@ -2264,12 +2088,12 @@ fi
 
 fi
 echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:2268: checking for connect" >&5
+echo "configure:2092: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2273 "configure"
+#line 2097 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -2292,7 +2116,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2296: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2120: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -2313,7 +2137,7 @@ fi
 
 if test $ac_cv_func_connect = no; then
     echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6
-echo "configure:2317: checking for connect in -lsocket" >&5
+echo "configure:2141: checking for connect in -lsocket" >&5
 ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2321,7 +2145,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2325 "configure"
+#line 2149 "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
@@ -2332,7 +2156,7 @@ int main() {
 connect()
 ; return 0; }
 EOF
-if { (eval echo configure:2336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2160: \"$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
@@ -2366,7 +2190,7 @@ fi
 if test "$enable_dynamic_linking" = "yes"; then
 
 echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:2370: checking for dlopen in -ldl" >&5
+echo "configure:2194: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2374,7 +2198,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2378 "configure"
+#line 2202 "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
@@ -2385,7 +2209,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:2389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2213: \"$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
@@ -2419,7 +2243,7 @@ EOF
 
 else
 echo $ac_n "checking for dld_link in -ldld""... $ac_c" 1>&6
-echo "configure:2423: checking for dld_link in -ldld" >&5
+echo "configure:2247: checking for dld_link in -ldld" >&5
 ac_lib_var=`echo dld'_'dld_link | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2427,7 +2251,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2431 "configure"
+#line 2255 "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
@@ -2438,7 +2262,7 @@ int main() {
 dld_link()
 ; return 0; }
 EOF
-if { (eval echo configure:2442: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2266: \"$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
@@ -2474,12 +2298,12 @@ else
 for ac_func in shl_load
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2478: checking for $ac_func" >&5
+echo "configure:2302: 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 2483 "configure"
+#line 2307 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2502,7 +2326,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2506: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2330: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2531,6 +2355,68 @@ if test "$ac_cv_func_shl_load" = "yes"; then
 #define DYNAMIC_LINKING 1
 EOF
 
+else
+for ac_func in dlopen
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:2363: 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 2368 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.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 $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:2391: \"$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'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+if test "$ac_cv_func_dlopen" = "yes"; then
+  cat >> confdefs.h <<\EOF
+#define DYNAMIC_LINKING 1
+EOF
+
+fi
 fi
 fi
 fi
@@ -2541,12 +2427,12 @@ fi
 for ac_func in ctermid ftime getcwd geteuid gethostent gettimeofday lstat mkdir mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction strftime strptime symlink sync tcgetpgrp tcsetpgrp times uname waitpid
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2545: checking for $ac_func" >&5
+echo "configure:2431: 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 2550 "configure"
+#line 2436 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2569,7 +2455,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2573: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2459: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2597,17 +2483,17 @@ done
 
 ac_safe=`echo "sys/un.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for sys/un.h""... $ac_c" 1>&6
-echo "configure:2601: checking for sys/un.h" >&5
+echo "configure:2487: checking for sys/un.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2606 "configure"
+#line 2492 "configure"
 #include "confdefs.h"
 #include <sys/un.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2611: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2497: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2638,12 +2524,12 @@ fi
 for ac_func in socketpair getgroups setpwent pause tzset
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2642: checking for $ac_func" >&5
+echo "configure:2528: 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 2647 "configure"
+#line 2533 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2666,7 +2552,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2670: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2556: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2697,12 +2583,12 @@ done
 for ac_func in sethostent endhostent getnetent setnetent endnetent getprotoent endprotoent getservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2701: checking for $ac_func" >&5
+echo "configure:2587: 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 2706 "configure"
+#line 2592 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2725,7 +2611,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2615: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2752,20 +2638,20 @@ done
 
 
 echo $ac_n "checking for restartable system calls""... $ac_c" 1>&6
-echo "configure:2756: checking for restartable system calls" >&5
+echo "configure:2642: checking for restartable system calls" >&5
 if eval "test \"`echo '$''{'scm_cv_restarts'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test $ac_cv_func_sigaction = yes; then
 		cat > conftest.$ac_ext <<EOF
-#line 2762 "configure"
+#line 2648 "configure"
 #include "confdefs.h"
 #include <signal.h>
 int main() {
 int a = SA_RESTART
 ; return 0; }
 EOF
-if { (eval echo configure:2769: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2655: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_restarts=yes
 else
@@ -2792,12 +2678,12 @@ if test "$ac_cv_header_regex_h" = yes ||
    test "$ac_cv_header_rxposix_h" = yes ||
    test "$ac_cv_header_rx_rxposix_h" = yes; then
   echo $ac_n "checking for regcomp""... $ac_c" 1>&6
-echo "configure:2796: checking for regcomp" >&5
+echo "configure:2682: checking for regcomp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_regcomp_norx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2801 "configure"
+#line 2687 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char regcomp(); below.  */
@@ -2820,7 +2706,7 @@ regcomp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2824: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2710: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_regcomp_norx=yes"
 else
@@ -2838,7 +2724,7 @@ if eval "test \"`echo '$ac_cv_func_'regcomp'_'norx`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in -lrx""... $ac_c" 1>&6
-echo "configure:2842: checking for main in -lrx" >&5
+echo "configure:2728: checking for main in -lrx" >&5
 ac_lib_var=`echo rx'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2846,14 +2732,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lrx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2850 "configure"
+#line 2736 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:2857: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2743: \"$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
@@ -2881,12 +2767,12 @@ else
 fi
 
    echo $ac_n "checking for regcomp""... $ac_c" 1>&6
-echo "configure:2885: checking for regcomp" >&5
+echo "configure:2771: checking for regcomp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_regcomp_rx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2890 "configure"
+#line 2776 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char regcomp(); below.  */
@@ -2909,7 +2795,7 @@ regcomp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_regcomp_rx=yes"
 else
@@ -2943,12 +2829,12 @@ fi
 for ac_func in inet_aton putenv strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2947: checking for $ac_func" >&5
+echo "configure:2833: 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 2952 "configure"
+#line 2838 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2971,7 +2857,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2975: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2861: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3004,19 +2890,19 @@ done
 # 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""... $ac_c" 1>&6
-echo "configure:3008: checking for working alloca.h" >&5
+echo "configure:2894: checking for working alloca.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3013 "configure"
+#line 2899 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() {
 char *p = alloca(2 * sizeof(int));
 ; return 0; }
 EOF
-if { (eval echo configure:3020: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2906: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   ac_cv_header_alloca_h=yes
 else
@@ -3037,12 +2923,12 @@ EOF
 fi
 
 echo $ac_n "checking for alloca""... $ac_c" 1>&6
-echo "configure:3041: checking for alloca" >&5
+echo "configure:2927: checking for alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3046 "configure"
+#line 2932 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -3065,7 +2951,7 @@ int main() {
 char *p = (char *) alloca(1);
 ; return 0; }
 EOF
-if { (eval echo configure:3069: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2955: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   ac_cv_func_alloca_works=yes
 else
@@ -3097,12 +2983,12 @@ EOF
 
 
 echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:3101: checking whether alloca needs Cray hooks" >&5
+echo "configure:2987: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3106 "configure"
+#line 2992 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -3127,12 +3013,12 @@ 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:3131: checking for $ac_func" >&5
+echo "configure:3017: 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 3136 "configure"
+#line 3022 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3155,7 +3041,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3159: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3045: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3182,7 +3068,7 @@ done
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:3186: checking stack direction for C alloca" >&5
+echo "configure:3072: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3190,7 +3076,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 3194 "configure"
+#line 3080 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -3209,7 +3095,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:3213: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3099: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_stack_direction=1
 else
@@ -3233,12 +3119,12 @@ fi
 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
 
 echo $ac_n "checking for st_rdev in struct stat""... $ac_c" 1>&6
-echo "configure:3237: checking for st_rdev in struct stat" >&5
+echo "configure:3123: checking for st_rdev in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_rdev'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3242 "configure"
+#line 3128 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -3246,7 +3132,7 @@ int main() {
 struct stat s; s.st_rdev;
 ; return 0; }
 EOF
-if { (eval echo configure:3250: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3136: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_rdev=yes
 else
@@ -3267,12 +3153,12 @@ EOF
 fi
 
 echo $ac_n "checking for st_blksize in struct stat""... $ac_c" 1>&6
-echo "configure:3271: checking for st_blksize in struct stat" >&5
+echo "configure:3157: checking for st_blksize in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blksize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3276 "configure"
+#line 3162 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -3280,7 +3166,7 @@ int main() {
 struct stat s; s.st_blksize;
 ; return 0; }
 EOF
-if { (eval echo configure:3284: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3170: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blksize=yes
 else
@@ -3304,12 +3190,12 @@ fi
 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
 # LIBOBJS, which we don't need.  This seems more direct. 
 echo $ac_n "checking for st_blocks in struct stat""... $ac_c" 1>&6
-echo "configure:3308: checking for st_blocks in struct stat" >&5
+echo "configure:3194: checking for st_blocks in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blocks'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3313 "configure"
+#line 3199 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -3317,7 +3203,7 @@ int main() {
 struct stat s; s.st_blocks;
 ; return 0; }
 EOF
-if { (eval echo configure:3321: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3207: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blocks=yes
 else
@@ -3338,12 +3224,12 @@ EOF
 fi
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:3342: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:3228: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3347 "configure"
+#line 3233 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -3351,7 +3237,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:3355: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3241: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -3372,12 +3258,12 @@ EOF
 fi
 
 echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
-echo "configure:3376: checking for tm_zone in struct tm" >&5
+echo "configure:3262: checking for tm_zone in struct tm" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3381 "configure"
+#line 3267 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -3385,7 +3271,7 @@ int main() {
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:3389: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3275: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -3405,12 +3291,12 @@ EOF
 
 else
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
-echo "configure:3409: checking for tzname" >&5
+echo "configure:3295: checking for tzname" >&5
 if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3414 "configure"
+#line 3300 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -3420,7 +3306,7 @@ int main() {
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:3424: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -3443,12 +3329,12 @@ fi
 
 
   echo $ac_n "checking whether we need POSIX to get struct utimbuf""... $ac_c" 1>&6
-echo "configure:3447: checking whether we need POSIX to get struct utimbuf" >&5
+echo "configure:3333: checking whether we need POSIX to get struct utimbuf" >&5
 if eval "test \"`echo '$''{'guile_cv_struct_utimbuf_needs_posix'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3452 "configure"
+#line 3338 "configure"
 #include "confdefs.h"
 
 #ifdef __EMX__
@@ -3460,7 +3346,7 @@ struct utime blah;
 
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3464: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3350: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3493,13 +3379,13 @@ if test "$cross_compiling" = yes; then
   echo "configure: warning: Guessing that stack grows down -- see scmconfig.h.in" 1>&2
 else
   cat > conftest.$ac_ext <<EOF
-#line 3497 "configure"
+#line 3383 "configure"
 #include "confdefs.h"
 aux (l) unsigned long l;
 	     { int x; exit (l >= ((unsigned long)&x)); }
 	   main () { int q; aux((unsigned long)&q); }
 EOF
-if { (eval echo configure:3503: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   cat >> confdefs.h <<\EOF
 #define SCM_STACK_GROWS_UP 1
@@ -3522,11 +3408,11 @@ EOF
 	   echo "configure: warning: Guessing that sizeof(long) == sizeof(float) -- see scmconfig.h.in" 1>&2
 else
   cat > conftest.$ac_ext <<EOF
-#line 3526 "configure"
+#line 3412 "configure"
 #include "confdefs.h"
 main () { exit (sizeof(float) != sizeof(long)); }
 EOF
-if { (eval echo configure:3530: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3416: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
   cat >> confdefs.h <<\EOF
 #define SCM_SINGLES 1
@@ -3541,12 +3427,12 @@ fi
 
 
 echo $ac_n "checking for struct linger""... $ac_c" 1>&6
-echo "configure:3545: checking for struct linger" >&5
+echo "configure:3431: checking for struct linger" >&5
 if eval "test \"`echo '$''{'scm_cv_struct_linger'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3550 "configure"
+#line 3436 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3555,7 +3441,7 @@ int main() {
 struct linger lgr;  lgr.l_linger = 100
 ; return 0; }
 EOF
-if { (eval echo configure:3559: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3445: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_linger="yes"
 else
@@ -3582,19 +3468,19 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking how to set a stream file descriptor""... $ac_c" 1>&6
-echo "configure:3586: checking how to set a stream file descriptor" >&5
+echo "configure:3472: checking how to set a stream file descriptor" >&5
 if eval "test \"`echo '$''{'scm_cv_fd_setter'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3591 "configure"
+#line 3477 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 stdout->_file = 1
 ; return 0; }
 EOF
-if { (eval echo configure:3598: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3484: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_fd_setter="_file"
 else
@@ -3602,14 +3488,14 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3606 "configure"
+#line 3492 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 stdout->_fileno = 1
 ; return 0; }
 EOF
-if { (eval echo configure:3613: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3499: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_fd_setter="_fileno"
 else
@@ -3647,19 +3533,19 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking how to get buffer char count from FILE structure""... $ac_c" 1>&6
-echo "configure:3651: checking how to get buffer char count from FILE structure" >&5
+echo "configure:3537: checking how to get buffer char count from FILE structure" >&5
 if eval "test \"`echo '$''{'scm_cv_struct_file_count'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3656 "configure"
+#line 3542 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 FILE *f = stdin; f->_cnt = 0
 ; return 0; }
 EOF
-if { (eval echo configure:3663: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3549: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_file_count="_cnt"
 else
@@ -3667,14 +3553,14 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3671 "configure"
+#line 3557 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 FILE *f = stdin; f->_r = 0
 ; return 0; }
 EOF
-if { (eval echo configure:3678: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3564: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_file_count="_r"
 else
@@ -3682,14 +3568,14 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3686 "configure"
+#line 3572 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 FILE *f = stdin; f->readCount = 0
 ; return 0; }
 EOF
-if { (eval echo configure:3693: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3579: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_file_count="readCount"
 else
@@ -3716,14 +3602,14 @@ if eval "test \"`echo '$''{'scm_cv_struct_file_gptr'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3720 "configure"
+#line 3606 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 FILE *f = stdin; f->_gptr = f->egptr;
 ; return 0; }
 EOF
-if { (eval echo configure:3727: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3613: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_file_gptr=1
 else
@@ -3746,14 +3632,14 @@ if eval "test \"`echo '$''{'scm_cv_struct_file_readptr'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3750 "configure"
+#line 3636 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
 FILE *f = stdin; f->_IO_read_ptr = f->_IO_read_end;
 ; return 0; }
 EOF
-if { (eval echo configure:3757: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3643: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   scm_cv_struct_file_readptr=1
 else
@@ -3783,7 +3669,7 @@ fi
 
 
 echo $ac_n "checking "threads package type"""... $ac_c" 1>&6
-echo "configure:3787: checking "threads package type"" >&5
+echo "configure:3673: checking "threads package type"" >&5
 if eval "test \"`echo '$''{'cy_cv_threads_package'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3842,7 +3728,7 @@ if test "$use_threads" != no; then
     LDFLAGS="-L$use_threads/lib"
     LIBS="-lgthreads -lmalloc"
     cat > conftest.$ac_ext <<EOF
-#line 3846 "configure"
+#line 3732 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
@@ -3851,7 +3737,7 @@ pthread_equal(NULL,NULL);
 
 ; return 0; }
 EOF
-if { (eval echo configure:3855: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3741: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   threads_package=FSU
 else
@@ -3863,7 +3749,7 @@ rm -f conftest*
   if test "$threads_package" = unknown; then
     LIBS="-lpthread"
     cat > conftest.$ac_ext <<EOF
-#line 3867 "configure"
+#line 3753 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
@@ -3872,7 +3758,7 @@ pthread_equal(NULL,NULL);
 
 ; return 0; }
 EOF
-if { (eval echo configure:3876: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3762: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   threads_package=MIT
 else
@@ -3884,7 +3770,7 @@ rm -f conftest*
   if test "$threads_package" = unknown; then
     LIBS="-lpthreads"
     cat > conftest.$ac_ext <<EOF
-#line 3888 "configure"
+#line 3774 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
@@ -3893,7 +3779,7 @@ pthread_equal(NULL,NULL);
 
 ; return 0; }
 EOF
-if { (eval echo configure:3897: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3783: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   threads_package=PCthreads
 else
@@ -3973,7 +3859,7 @@ do
 # Extract the first word of "$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:3977: checking for $ac_word" >&5
+echo "configure:3863: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4032,7 +3918,7 @@ 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:4036: checking host system type" >&5
+echo "configure:3922: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -4273,9 +4159,6 @@ s%@host_cpu@%$host_cpu%g
 s%@host_vendor@%$host_vendor%g
 s%@host_os@%$host_os%g
 s%@RANLIB@%$RANLIB%g
-s%@LD@%$LD%g
-s%@NM@%$NM%g
-s%@LN_S@%$LN_S%g
 s%@LIBTOOL@%$LIBTOOL%g
 s%@LIBOBJS@%$LIBOBJS%g
 s%@ALLOCA@%$ALLOCA%g
diff --git a/configure.in b/configure.in
index 92ab16cff..67ab60591 100644
--- a/configure.in
+++ b/configure.in
@@ -77,6 +77,11 @@ else
 AC_CHECK_FUNCS(shl_load)
 if test "$ac_cv_func_shl_load" = "yes"; then
   AC_DEFINE(DYNAMIC_LINKING)
+else
+AC_CHECK_FUNCS(dlopen)
+if test "$ac_cv_func_dlopen" = "yes"; then
+  AC_DEFINE(DYNAMIC_LINKING)
+fi
 fi
 fi
 fi