libfoo.dylib : foo.c libbar.dylib
${CC} -I${TESTROOT}/include -dynamiclib foo.c -o libfoo.dylib libbar.dylib
libbar.dylib : bar.c
libfoo.dylib : foo.c libbar.dylib
${CC} -I${TESTROOT}/include -dynamiclib foo.c -o libfoo.dylib libbar.dylib
libbar.dylib : bar.c