1LD_EXTRAS := -L. -la -lb 2CXX_SOURCES := main.cpp 3 4a.out: liba libb 5 6include Makefile.rules 7 8liba: 9 $(MAKE) -f $(MAKEFILE_RULES) \ 10 DYLIB_ONLY=YES DYLIB_NAME=a DYLIB_CXX_SOURCES=a.cpp 11 12libb: 13 $(MAKE) -f $(MAKEFILE_RULES) \ 14 DYLIB_ONLY=YES DYLIB_NAME=b DYLIB_CXX_SOURCES=b.cpp 15 16