+#include <string.h>
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "strerror_r" >/dev/null 2>&1; then
+ rm -rf conftest*
+ ol_decl_strerror_r=yes
+else
+ rm -rf conftest*
+ ol_decl_strerror_r=no
+fi
+rm -f conftest*
+
+ if test $ol_decl_strerror_r = yes ; then
+ cat > conftest.$ac_ext <<EOF
+#line 9598 "configure"
+#include "confdefs.h"
+#include <string.h>
+int main() {
+ /* from autoconf 2.59 */
+ char buf[100];
+ char x = *strerror_r (0, buf, sizeof buf);
+ char *p = strerror_r (0, buf, sizeof buf);
+
+; return 0; }
+EOF
+if { (eval echo configure:9609: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ ol_cv_nonposix_strerror_r=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_nonposix_strerror_r=no
+fi
+rm -f conftest*
+ 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 9624 "configure"
+#include "confdefs.h"
+
+ main() {
+ char buf[100];
+ buf[0] = 0;
+ strerror_r( 1, buf, sizeof buf );
+ exit( buf[0] == 0 );
+ }
+
+EOF
+if { (eval echo configure:9635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+ ol_cv_nonposix_strerror_r=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -fr conftest*
+ ol_cv_nonposix_strerror=no
+fi
+rm -fr conftest*
+fi
+
+ fi
+
+fi
+
+echo "$ac_t""$ol_cv_nonposix_strerror_r" 1>&6
+if test $ol_cv_nonposix_strerror_r = yes ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_NONPOSIX_STRERROR_R 1
+EOF
+
+fi
+
+elif test "${ac_cv_func_strerror}" = no ; then
+ echo $ac_n "checking declaration of sys_errlist""... $ac_c" 1>&6
+echo "configure:9661: checking declaration of sys_errlist" >&5
+if eval "test \"\${ol_cv_dcl_sys_errlist+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ cat > conftest.$ac_ext <<EOF
+#line 9667 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <errno.h>
+#ifdef WINNT
+#include <stdlib.h>
+#endif
+int main() {
+char *c = (char *) *sys_errlist
+; return 0; }
+EOF
+if { (eval echo configure:9680: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ ol_cv_dcl_sys_errlist=yes
+ ol_cv_have_sys_errlist=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_dcl_sys_errlist=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ol_cv_dcl_sys_errlist" 1>&6
+#
+# It's possible (for near-UNIX clones) that sys_errlist doesn't exist
+if test $ol_cv_dcl_sys_errlist = no ; then
+ cat >> confdefs.h <<\EOF
+#define DECL_SYS_ERRLIST 1
+EOF
+
+
+ echo $ac_n "checking existence of sys_errlist""... $ac_c" 1>&6
+echo "configure:9703: checking existence of sys_errlist" >&5
+if eval "test \"\${ol_cv_have_sys_errlist+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ cat > conftest.$ac_ext <<EOF
+#line 9709 "configure"
+#include "confdefs.h"
+#include <errno.h>
+int main() {
+char *c = (char *) *sys_errlist
+; return 0; }
+EOF
+if { (eval echo configure:9716: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_have_sys_errlist=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_have_sys_errlist=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ol_cv_have_sys_errlist" 1>&6
+fi
+if test $ol_cv_have_sys_errlist = yes ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_SYS_ERRLIST 1
+EOF
+
+fi
+
+fi
+
+
+for ac_hdr in regex.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:9744: checking for $ac_hdr" >&5
+if eval "test \"\${ac_cv_header_$ac_safe+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 9749 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:9754: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+ rm -rf conftest*
+ eval "ac_cv_header_$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 $ac_tr_hdr 1
+EOF
+
+else
+ echo "$ac_t""no" 1>&6
+fi
+done
+
+if test "$ac_cv_header_regex_h" != yes ; then
+ { echo "configure: error: POSIX regex.h required." 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking for library containing regfree""... $ac_c" 1>&6
+echo "configure:9785: checking for library containing regfree" >&5
+if eval "test \"\${ac_cv_search_regfree+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_func_search_save_LIBS="$LIBS"
+ac_cv_search_regfree="no"
+cat > conftest.$ac_ext <<EOF
+#line 9792 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char regfree();
+
+int main() {
+regfree()
+; return 0; }
+EOF
+if { (eval echo configure:9803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ac_cv_search_regfree="none required"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+test "$ac_cv_search_regfree" = "no" && for ac_lib in regex gnuregex; do
+LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 9814 "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 regfree();
+
+int main() {
+regfree()
+; return 0; }
+EOF
+if { (eval echo configure:9825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ac_cv_search_regfree="-l$ac_lib"
+break
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+done
+LIBS="$ac_func_search_save_LIBS"
+fi
+
+echo "$ac_t""$ac_cv_search_regfree" 1>&6
+if test "$ac_cv_search_regfree" != "no"; then
+ test "$ac_cv_search_regfree" = "none required" || LIBS="$ac_cv_search_regfree $LIBS"
+ :
+else :
+ { echo "configure: error: POSIX regex required." 1>&2; exit 1; }
+fi
+
+
+echo $ac_n "checking for compatible POSIX regex""... $ac_c" 1>&6
+echo "configure:9848: checking for compatible POSIX regex" >&5
+if eval "test \"\${ol_cv_c_posix_regex+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ if test "$cross_compiling" = yes; then
+ ol_cv_c_posix_regex=cross
+else
+ cat > conftest.$ac_ext <<EOF
+#line 9857 "configure"
+#include "confdefs.h"
+
+#include <sys/types.h>
+#include <regex.h>
+static char *pattern, *string;
+main()
+{