Ah, nevermind, I just saw this. http://stackoverflow.com/questions/13260396/gnu-make-3-81-eval-function-not-working
-- David. David Hart Limnu --- https://limnu.com On Sat, Nov 28, 2015 at 12:21 PM, David Hart <dah...@limnu.com> wrote: > > Hi, I've run into this problem twice (because I forgot the first time) and > spent some time debugging my code only to find I'd followed the gnu make > manual's example, which appears to have a bug in it. Or, eval() or the > define directive has a bug, I'm not sure which. (Appendix A in the manual > appears to suggest that a define should work identically with our without > an equals sign.) > > The example for eval() in section 8.9 has the line: > > define PROGRAM_template = > > But I have never seen this work, and it does run for me if I remove the > "=" (equals sign). > > I'm currently on OSX, but I'm "pretty sure" I've seen this same behavior > on both Linux and Cygwin. > > > Here's an example makefile, pruned down from the manual's example: > > PROGRAMS = server client > server_OBJS = server server_priv server_access > client_OBJS = client client_api client_mem > > .PHONY: all > all: $(PROGRAMS) > > define PROGRAM_template = > ALL_OBJS += $$($(1)_OBJS) > endef > > $(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog)))) > $(info "all objs:" $(ALL_OBJS)) > > > > make > "all objs:" > make: *** No rule to make target `server', needed by `all'. Stop. > > > > PROGRAMS = server client > server_OBJS = server server_priv server_access > client_OBJS = client client_api client_mem > > .PHONY: all > all: $(PROGRAMS) > > define PROGRAM_template > ALL_OBJS += $$($(1)_OBJS) > endef > > $(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog)))) > $(info "all objs:" $(ALL_OBJS)) > > > > make > "all objs:" server server_priv server_access client client_api client_mem > make: *** No rule to make target `server', needed by `all'. Stop. > > > David Hart > Limnu --- https://limnu.com >
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