Hi ~ :-)
I successed adding one more directorys and files.
# my bb file
.
SRC_URI = "file://myhelloworld.c \
file://README.txt file://test/test1.c file://inc/test1.h"
S = "${WORKDIR}/myhelloworld/"
do_compile() {
${CC} ${CFLAGS} ${LDFLAGS} ${WORKDIR}/myhelloworld.c
${WORKDIR}/test/test1.c -o myhelloworld
.
Have a nice weekend ~

