use posix timers

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2047 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile.target

@@ -401,7 +401,7 @@ endif
 ifndef CONFIG_DARWIN
 ifndef CONFIG_WIN32
 ifndef CONFIG_SOLARIS
-VL_LIBS=-lutil
+VL_LIBS=-lutil -lrt
 endif
 endif
 endif