# fix implicit function declaration in configure.ac
# Bug 899844
diff --git a/configure.ac b/configure.ac
index c3ebffb..29abf94 100644
--- a/configure.ac
+++ b/configure.ac
@@ -664,6 +664,7 @@ AC_TRY_RUN([
 #define AUTOCONF_TEST 1
 #include <sys/ioctl.h>
 #include "confdefs.h"
+#include <stdlib.h>
 int cmp(const struct dirent **a, const struct dirent **b){return 0;}
 int main(){
     char c[2];
@@ -684,6 +685,7 @@ AC_TRY_RUN([
 #define AUTOCONF_TEST 1
 #include <sys/socket.h>
 #include "confdefs.h"
+#include <stdlib.h>
 int main(){
     socklen_t tmp;
     exit(0);