server/Makefile (after buildconf/configure) contains this: .ifdef CC_FOR_BUILD gen_test_char: gen_test_char.c $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) -DCROSS_COMPILE -o $@ $< .else gen_test_char_OBJECTS = gen_test_char.lo gen_test_char: $(gen_test_char_OBJECTS) $(LINK) $(EXTRA_LDFLAGS) $(gen_test_char_OBJECTS) $(EXTRA_LIBS) .endif However, CC_FOR_BUILD appears to be defined (to "") even if not cross-compiling, resulting in a build failure.