fix musl compile

package/tptest/Makefile

@@ -5,7 +5,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=		tptest
 PKG_VERSION:=		3.1.7
-PKG_RELEASE:=		1
+PKG_RELEASE:=		2
 PKG_MD5SUM:=		46f941bdab738a2a11ecc2a5f757ec77
 PKG_DESCR:=		Internet bandwidth tester
 PKG_SECTION:=		net

package/tptest/patches/patch-apps_unix_server_server_c

@@ -0,0 +1,10 @@
+--- tptest-3.1.7.orig/apps/unix/server/server.c	2002-11-11 18:22:12.000000000 +0100
++++ tptest-3.1.7/apps/unix/server/server.c	2013-12-22 10:08:55.000000000 +0100
+@@ -31,6 +31,7 @@
+  */
+ 
+ 
++#include <fcntl.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <signal.h>