circbuf: Move to lib_generic and conditionally compile
circbuf could be used as a generic library and is only currently
needed when CONFIG_USB_TTY is defined.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/lib_generic/Makefile b/lib_generic/Makefile
index 686601c..2ec261a 100644
--- a/lib_generic/Makefile
+++ b/lib_generic/Makefile
@@ -31,6 +31,7 @@
COBJS-$(CONFIG_BZIP2) += bzlib_decompress.o
COBJS-$(CONFIG_BZIP2) += bzlib_randtable.o
COBJS-$(CONFIG_BZIP2) += bzlib_huffman.o
+COBJS-$(CONFIG_USB_TTY) += circbuf.o
COBJS-y += crc16.o
COBJS-y += crc32.o
COBJS-y += ctype.o