+#line 8744 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+int
+main ()
+{
+
+#ifdef _POSIX_SOURCE
+make an error
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:8759: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:8762: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:8765: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:8768: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ fi
+
+echo "${as_me:-configure}:8779: testing ifdef from value $cf_POSIX_C_SOURCE ..." 1>&5
+
+ CFLAGS="$cf_trim_CFLAGS"
+ CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
+
+echo "${as_me:-configure}:8784: testing if the second compile does not leave our definition intact error ..." 1>&5
+
+ cat >conftest.$ac_ext <<_ACEOF
+#line 8787 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+int
+main ()
+{
+
+#ifndef _POSIX_C_SOURCE
+make an error
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:8802: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:8805: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:8808: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:8811: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_posix_c_source=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$cf_save_CFLAGS"
+ CPPFLAGS="$cf_save_CPPFLAGS"
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:8827: result: $cf_cv_posix_c_source" >&5
+echo "${ECHO_T}$cf_cv_posix_c_source" >&6
+
+if test "$cf_cv_posix_c_source" != no ; then
+ CFLAGS="$cf_trim_CFLAGS"
+ CPPFLAGS="$cf_trim_CPPFLAGS"
+
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in $cf_cv_posix_c_source
+do
+case $cf_fix_cppflags in
+no)
+ case $cf_add_cflags in #(vi
+ -undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
+ case $cf_add_cflags in
+ -D*)
+ cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
+
+ test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+ && test -z "${cf_tst_cflags}" \
+ && cf_fix_cppflags=yes
+
+ if test $cf_fix_cppflags = yes ; then
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+ continue
+ elif test "${cf_tst_cflags}" = "\"'" ; then
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+ continue
+ fi
+ ;;
+ esac
+ case "$CPPFLAGS" in
+ *$cf_add_cflags) #(vi
+ ;;
+ *) #(vi
+ case $cf_add_cflags in #(vi
+ -D*)
+ cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
+
+CPPFLAGS=`echo "$CPPFLAGS" | \
+ sed -e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ ]*\)\?[ ]/ /g' \
+ -e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ ]*\)\?$//g'`
+
+ ;;
+ esac
+ cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
+ ;;
+ esac
+ ;;
+ *)
+ cf_new_cflags="$cf_new_cflags $cf_add_cflags"
+ ;;
+ esac
+ ;;
+yes)
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+
+ cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
+
+ test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+ && test -z "${cf_tst_cflags}" \
+ && cf_fix_cppflags=no
+ ;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+
+ CFLAGS="$CFLAGS $cf_new_cflags"
+fi
+
+if test -n "$cf_new_cppflags" ; then
+
+ CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+
+ EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
+fi
+
+fi
+
+ ;;
+esac
+
+if test -n "$cf_xopen_source" ; then
+
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in $cf_xopen_source
+do
+case $cf_fix_cppflags in
+no)
+ case $cf_add_cflags in #(vi
+ -undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
+ case $cf_add_cflags in
+ -D*)
+ cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
+
+ test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+ && test -z "${cf_tst_cflags}" \
+ && cf_fix_cppflags=yes
+
+ if test $cf_fix_cppflags = yes ; then
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+ continue
+ elif test "${cf_tst_cflags}" = "\"'" ; then
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+ continue
+ fi
+ ;;
+ esac
+ case "$CPPFLAGS" in
+ *$cf_add_cflags) #(vi
+ ;;
+ *) #(vi
+ case $cf_add_cflags in #(vi
+ -D*)
+ cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
+
+CPPFLAGS=`echo "$CPPFLAGS" | \
+ sed -e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ ]*\)\?[ ]/ /g' \
+ -e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ ]*\)\?$//g'`
+
+ ;;
+ esac
+ cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
+ ;;
+ esac
+ ;;
+ *)
+ cf_new_cflags="$cf_new_cflags $cf_add_cflags"
+ ;;
+ esac
+ ;;
+yes)
+ cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+
+ cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
+
+ test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+ && test -z "${cf_tst_cflags}" \
+ && cf_fix_cppflags=no
+ ;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+
+ CFLAGS="$CFLAGS $cf_new_cflags"
+fi
+
+if test -n "$cf_new_cppflags" ; then
+
+ CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+
+ EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
+fi
+
+fi
+
+if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
+ echo "$as_me:9000: checking if _XOPEN_SOURCE really is set" >&5
+echo $ECHO_N "checking if _XOPEN_SOURCE really is set... $ECHO_C" >&6
+ cat >conftest.$ac_ext <<_ACEOF
+#line 9003 "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+int
+main ()
+{
+
+#ifndef _XOPEN_SOURCE
+make an error
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:9018: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:9021: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:9024: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:9027: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_XOPEN_SOURCE_set=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_XOPEN_SOURCE_set=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ echo "$as_me:9036: result: $cf_XOPEN_SOURCE_set" >&5
+echo "${ECHO_T}$cf_XOPEN_SOURCE_set" >&6
+ if test $cf_XOPEN_SOURCE_set = yes
+ then
+ cat >conftest.$ac_ext <<_ACEOF
+#line 9041 "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+int
+main ()
+{
+
+#if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
+make an error
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:9056: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:9059: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:9062: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:9065: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_XOPEN_SOURCE_set_ok=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_XOPEN_SOURCE_set_ok=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ if test $cf_XOPEN_SOURCE_set_ok = no
+ then
+ { echo "$as_me:9076: WARNING: _XOPEN_SOURCE is lower than requested" >&5
+echo "$as_me: WARNING: _XOPEN_SOURCE is lower than requested" >&2;}
+ fi
+ else
+
+echo "$as_me:9081: checking if we should define _XOPEN_SOURCE" >&5
+echo $ECHO_N "checking if we should define _XOPEN_SOURCE... $ECHO_C" >&6
+if test "${cf_cv_xopen_source+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ cat >conftest.$ac_ext <<_ACEOF
+#line 9088 "configure"