Regenerate.

diff --git a/configure b/configure
index 3affdf512ad6e4b0c3aaf943b260e5891e5b9ca0..500a199f1e789d87c1122d6ed50c6dde7d085d37 100755 (executable)
--- a/configure
+++ b/configure
@@ -1298,8 +1298,7 @@ gives unlimited permission to copy, distribute and modify it.
 _ACEOF
   exit
 fi
-exec 5>config.log
-cat >&5 <<_ACEOF
+cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
@@ -1309,6 +1308,7 @@ generated by GNU Autoconf 2.59d.  Invocation command line was
   $ $0 $@
 
 _ACEOF
+exec 5>>config.log
 {
 cat <<_ASUNAME
 ## --------- ##
@@ -2132,34 +2132,29 @@ am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
 #   $ time sh -nx endless.sh
 #   ^Csh -nx endless.sh  3,67s user 0,03s system 63% cpu 5,868 total
 #
+# Also, some implementations of /bin/sh (e.g., Solaris 8) are soooo slow
+# that they are unusable on large scripts like our testsuite.
+
 # So before using `/bin/sh -n' to check our scripts, we first check
-# that `/bin/sh -n' is not broken to death.
+# that `/bin/sh -n' is known to not have these problems.
 
-# A script that never returns.  We don't care that it never returns,
-# broken /bin/sh loop equally with `false', but it makes it easier to
-# test the robustness in a good environment: just remove the `-n'.
-{ echo "$as_me:$LINENO: checking whether sh -n works" >&5
-echo $ECHO_N "checking whether sh -n works... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking whether /bin/sh -n is known to work" >&5
+echo $ECHO_N "checking whether /bin/sh -n is known to work... $ECHO_C" >&6; }
 if test "${ac_cv_sh_n_works+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.sh <<_CONFEOF_
-while :
-do
-  :
-done
-_CONFEOF_
-
-(/bin/sh -n conftest.sh) &
-sleep 2
-if kill $! >/dev/null 2>&1; then
-  # We managed to kill the child, which means that we probably
-  # can't trust `/bin/sh -n', hence the test failed.
-  ac_cv_sh_n_works=no
-else
-  ac_cv_sh_n_works=yes
+  if (
+    unset BASH_VERSION ZSH_VERSION
+    /bin/sh -c '
+      test -n "${BASH_VERSION+set}" || # Bash
+      test -n "${KSH_VERSION+set}" || # pdksh
+      test -n "${ZSH_VERSION+set}" || # zsh
+      test -n "${.sh.version}" # ksh93; put this last since its syntax is dodgy
+    '
+  ) 2>/dev/null
+then ac_cv_sh_n_works=yes
+else ac_cv_sh_n_works=no
 fi
-rm conftest.sh
 
 fi
 { echo "$as_me:$LINENO: result: $ac_cv_sh_n_works" >&5
@@ -3327,6 +3322,17 @@ if $ac_cs_silent; then
   ac_configure_extra_args="$ac_configure_extra_args --silent"
 fi
 
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+if \$ac_cs_recheck; then
+  echo "running CONFIG_SHELL=$SHELL $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
+  CONFIG_SHELL=$SHELL
+  export CONFIG_SHELL
+  exec $SHELL "$0" $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 exec 5>>config.log
 {
   echo
@@ -3338,12 +3344,6 @@ _ASBOX
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
-if \$ac_cs_recheck; then
-  echo "running CONFIG_SHELL=$SHELL $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
-  CONFIG_SHELL=$SHELL
-  export CONFIG_SHELL
-  exec $SHELL "$0" $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
-fi
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF