Fixed issue #39: missing include of <sys/select.h>

Makefile

@@ -1,4 +1,4 @@
-VERSION = git-20120221
+VERSION = git-20120227
 
 CC      = gcc
 CFLAGS  = -ansi -Wall -pedantic -O2

main.c

@@ -23,6 +23,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
+#include <sys/select.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <X11/Xutil.h>