Fix more usages of NULL without including stdio.h.

Stefan Krah · Stefan Krah · commit 19c2139d2d7c · 2012-11-22T23:47:32.000+01:00
diff --git a/configure b/configure
@@ -11620,6 +11620,7 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+#include <stdio.h>
 #include <sys/types.h>
 #include <netdb.h>
 #include <string.h>
@@ -14833,6 +14834,7 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+#include <stdio.h>
 #include<stdlib.h>
 int main() {
     size_t len = -1;
diff --git a/configure.ac b/configure.ac
@@ -3119,6 +3119,7 @@ then
   AC_MSG_CHECKING(getaddrinfo bug)
   AC_CACHE_VAL(ac_cv_buggy_getaddrinfo,
   AC_RUN_IFELSE([AC_LANG_SOURCE([[[
+#include <stdio.h>
 #include <sys/types.h>
 #include <netdb.h>
 #include <string.h>
@@ -4447,6 +4448,7 @@ AC_CHECK_TYPE(socklen_t,,
 AC_MSG_CHECKING(for broken mbstowcs)
 AC_CACHE_VAL(ac_cv_broken_mbstowcs,
 AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stdio.h>
 #include<stdlib.h>
 int main() {
     size_t len = -1;
