Another GNU Make solution. You can do it using the define and export commands as follows: define GITIGNOREDS *.o depend endef SRCS = $(wildcard [a-z]*.c) EXES = $(SRCS:.c=) export GITIGNOREDS .gitignore: $(SRCS) echo $(EXES) | sed ‘s/ /\n/g’ > $@ echo “$$GITIGNOREDS” >> $@ You have to be careful of make expansions (i.e. $(x)) inside … Read more
Assuming your prerequisites are regular tokens, echo $(word 2,$^) I often find myself giving the first argument a special position, and accessing the remaining prerequisites with echo $(filter-out $<,$^) *Though sometimes with the upper solution you might find repeating elements.
If you define the target .SILENT:, then make will not echo anything. It’s usually best to guard the definition, so you can easily turn it off: ifndef VERBOSE .SILENT: endif Now by default, make will print nothing, but if you run make VERBOSE=1, it will print. Note that despite the statement in the manual claiming … Read more
The classic way to do it is: version.o: .FORCE .FORCE: (and you might add .PHONY: .FORCE). The file ‘.FORCE’ is presumed not to exist, so it is always ‘created’, so version.o is always out of date w.r.t it, so version.o is always compiled. I’m not sure that making version.o into a phony file is correct; … Read more
Using classic gnu make and inotifywait, without interval-based polling: watch: while true; do \ $(MAKE) $(WATCHMAKE); \ inotifywait -qre close_write .; \ done This way make is triggered on every file write in the current directory tree. You can specify the target by running make watch WATCHMAKE=foo
I personally would really use the features of a source control software (you should use one) for this. This would cleanup make independent of your build process. See e.g. svn-cleanup or git clean. Nevertheless, automake allows some tweaking when to remove which files. This has (intentionally?) built-in limitations on what files generated by autotools can … Read more
I’m not familiar with cmake, but for gnu make, one possible hack would be: clean: check_clean check_clean: @echo -n “Are you sure? [y/N] ” && read ans && [ $${ans:-N} = y ] .PHONY: clean check_clean If check_clean fails (user does not type in y), then make will exit with an error before performing the … Read more
# Retrieves a host part of the given string (without port). # Param: # 1. String to parse in form ‘host[:port]’. host = $(firstword $(subst :, ,$1)) # Returns a port (if any). # If there is no port part in the string, returns the second argument # (if specified). # Param: # 1. String … Read more
I propose two solutions. The first mimics what NetBeans IDE generates: CC=gcc .PHONY: all clean all: post-build pre-build: @echo PRE post-build: main-build @echo POST main-build: pre-build @$(MAKE) –no-print-directory target target: $(OBJS) $(CC) -o $@ $(OBJS) clean: rm -f $(OBJS) target The second one is inpired by what Eclipse IDE generates: CC=gcc .PHONY: all clean .SECONDARY: … Read more
You’re right, it would make more sense to define the subdir rules as PHONY. But Make does not consider implicit rules for PHONY targets, so you’ll have to rewrite that rule. I suggest the following: SUBDIR_TARGETS = all.subdir clean.subdir .PHONY: all clean $(SUBDIR_TARGETS) $(SUBDIR_TARGETS): %.subdir: $(MAKE) -C src $* $(MAKE) -C dict $* all: all.subdir … Read more