Avoid implicitly declaring select()
Upstream-Status: Inappropriate [this patch is Darwin-specific; MySQL 5.6 is EOL; MySQL 5.7.4 removed this check for select()]

diff --git a/configure.cmake b/configure.cmake
index dddeb25b6bab..c0fb70db735b 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -833,9 +833,7 @@ CHECK_C_SOURCE_COMPILES("
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #else
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
+#include <sys/select.h>
 #endif
 int main()
 {