Fixed build error on Linux

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@356 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/include/pj/compat/os_linux.h b/pjlib/include/pj/compat/os_linux.h
index fe3a29d..eb6264e 100644
--- a/pjlib/include/pj/compat/os_linux.h
+++ b/pjlib/include/pj/compat/os_linux.h
@@ -43,7 +43,7 @@
 #define PJ_HAS_SYS_IOCTL_H	    1
 #define PJ_HAS_SYS_SELECT_H	    1
 #define PJ_HAS_SYS_SOCKET_H	    1
-#define PJ_HAS_SYS_TIME_H	    0
+#define PJ_HAS_SYS_TIME_H	    1
 #define PJ_HAS_SYS_TIMEB_H	    1
 #define PJ_HAS_SYS_TYPES_H	    1
 #define PJ_HAS_TIME_H		    1