configure.ng: Include <string.h> for memset in WORKING_GETADDRINFO probe

Otherwise, the probe always fails with compilers which do not
support implicit function declarations.

diff --git a/configure.ng b/configure.ng
index 28ababbf450234b33e409af5ed1dfebf75067274..b8bcd24d13bad32c47ecb97ce54450e4f49d1e83 100644 (file)
--- a/configure.ng
+++ b/configure.ng
@@ -101,6 +101,7 @@ AC_DEFUN([WORKING_GETADDRINFO],[
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>
+#include <string.h>
 int
 main(int argc, char **argv)
 {