Allow compiling under Android

include/curl/curl.h

@@ -70,7 +70,8 @@
    libc5-based Linux systems. Only include it on system that are known to
    require it! */
 #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
-    defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY)
+    defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \
+    defined(ANDROID)
 #include <sys/select.h>
 #endif