+else # !cf_cv_have___va_copy
+
+echo "$as_me:20500: checking for __builtin_va_copy" >&5
+echo $ECHO_N "checking for __builtin_va_copy... $ECHO_C" >&6
+if test "${cf_cv_have___builtin_va_copy+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 20507 "configure"
+#include "confdefs.h"
+
+#include <stdarg.h>
+
+int
+main (void)
+{
+
+ static va_list dst;
+ static va_list src;
+ __builtin_va_copy(dst, src)
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:20524: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:20527: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:20530: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:20533: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_cv_have___builtin_va_copy=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_have___builtin_va_copy=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:20543: result: $cf_cv_have___builtin_va_copy" >&5
+echo "${ECHO_T}$cf_cv_have___builtin_va_copy" >&6
+
+test "$cf_cv_have___builtin_va_copy" = yes &&
+
+cat >>confdefs.h <<\EOF
+#define HAVE___BUILTIN_VA_COPY 1
+EOF
+
+fi # cf_cv_have___va_copy
+
+fi # cf_cv_have_va_copy
+
+case "${cf_cv_have_va_copy}${cf_cv_have___va_copy}${cf_cv_have___builtin_va_copy}" in
+(*yes*)
+ ;;
+
+(*)
+ echo "$as_me:20561: checking if we can simply copy va_list" >&5
+echo $ECHO_N "checking if we can simply copy va_list... $ECHO_C" >&6
+if test "${cf_cv_pointer_va_list+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 20568 "configure"
+#include "confdefs.h"
+
+#include <stdarg.h>
+
+int
+main (void)
+{
+
+ va_list dst;
+ va_list src;
+ dst = src
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:20585: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:20588: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:20591: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:20594: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_cv_pointer_va_list=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_pointer_va_list=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:20604: result: $cf_cv_pointer_va_list" >&5
+echo "${ECHO_T}$cf_cv_pointer_va_list" >&6
+
+ if test "$cf_cv_pointer_va_list" = no
+ then
+ echo "$as_me:20609: checking if we can copy va_list indirectly" >&5
+echo $ECHO_N "checking if we can copy va_list indirectly... $ECHO_C" >&6
+if test "${cf_cv_array_va_list+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 20616 "configure"
+#include "confdefs.h"
+
+#include <stdarg.h>
+
+int
+main (void)
+{
+
+ va_list dst;
+ va_list src;
+ *dst = *src
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:20633: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:20636: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:20639: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:20642: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_cv_array_va_list=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_array_va_list=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:20652: result: $cf_cv_array_va_list" >&5
+echo "${ECHO_T}$cf_cv_array_va_list" >&6
+ test "$cf_cv_array_va_list" = yes &&
+cat >>confdefs.h <<\EOF
+#define ARRAY_VA_LIST 1
+EOF
+
+ fi
+ ;;
+esac
+
+echo "$as_me:20663: checking for pid_t" >&5