The usual

configure

 #! /bin/sh
 
-# From configure.in Revision: 1.35 
+# From configure.in Revision: 1.36 
 
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.10 
@@ -2978,14 +2978,21 @@ cat > conftest.$ac_ext <<EOF
 #include "confdefs.h"
 
 #include <stdarg.h>
-int foo(int x, ...) { return 0; }
+int foo(int x, ...) {
+	va_list va;
+	va_start(va, x);
+	va_arg(va, int);
+	va_arg(va, char *);
+	va_arg(va, double);
+	return 0;
+}
 
 int main() { return 0; }
 int t() {
-return foo(10, 11, 12);
+return foo(10, "", 3.14);
 ; return 0; }
 EOF
-if { (eval echo configure:2989: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2996: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_STDARG_PROTOTYPES 1
@@ -3000,7 +3007,7 @@ if test "$have_prototypes" = yes; then
 bad_prototypes=no
 echo $ac_n "checking for bad exec* prototypes""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 3004 "configure"
+#line 3011 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() { return 0; }
@@ -3008,7 +3015,7 @@ int t() {
 char **t;execve("@",t,t);
 ; return 0; }
 EOF
-if { (eval echo configure:3012: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3019: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   rm -rf conftest*
@@ -3028,7 +3035,7 @@ if test "$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 3032 "configure"
+#line 3039 "configure"
 #include "confdefs.h"
 
 struct s { int a; int b; };
@@ -3044,7 +3051,7 @@ main() {
 }
 
 EOF
-{ (eval echo configure:3048: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:3055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   :
 else
@@ -3060,7 +3067,7 @@ echo "$ac_t""$bad_forward" 1>&6
 va_list_is_array=no
 echo $ac_n "checking whether va_list is an array""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 3064 "configure"
+#line 3071 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_STDARG_PROTOTYPES
@@ -3074,7 +3081,7 @@ int t() {
 va_list list1, list2; list1 = list2;
 ; return 0; }
 EOF
-if { (eval echo configure:3078: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3085: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   rm -rf conftest*
@@ -3099,7 +3106,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3103 "configure"
+#line 3110 "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
@@ -3111,7 +3118,7 @@ int t() {
 __fpu_control()
 ; return 0; }
 EOF
-if { (eval echo configure:3115: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:3122: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3173,7 +3180,7 @@ 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 3177 "configure"
+#line 3184 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3197,7 +3204,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:3208: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3226,7 +3233,7 @@ 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 3230 "configure"
+#line 3237 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3250,7 +3257,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3254: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:3261: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3281,7 +3288,7 @@ else
   ac_cv_func_getopt=no
 else
 cat > conftest.$ac_ext <<EOF
-#line 3285 "configure"
+#line 3292 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 extern int optind, opterr, getopt();
@@ -3293,7 +3300,7 @@ int main() {
 	exit(0);
 }
 EOF
-{ (eval echo configure:3297: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:3304: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   ac_cv_func_getopt=yes
 else