How could I abort a make/makefile execution based on a makefile’s variable not being set/valued? I came up with this, but works only if caller doesn’t explicitly run a target (i.e. runs make only). ifeq ($(MY_FLAG),) abort: ## This MUST be the first target 🙁 ugly @echo Variable MY_FLAG not set && false endif all: … Read more
What does the following do in a Makefile? rule: $(deps) @: I can’t seem to find this in the make manual. 2 Answers 2
I have the following makefile for my project, and I’d like to configure it for release and debug builds. In my code, I have lots of #ifdef DEBUG macros in place, so it’s simply a matter of setting this macro and adding the -g3 -gdwarf2 flags to the compilers. How can I do this? $(CC) … Read more
In the GNU Makefile manual, it mentions these prefixes. If .ONESHELL is provided, then only the first line of the recipe will be checked for the special prefix characters (‘@’, ‘-’, and ‘+’). What do these prefixes do, and where are they mentioned? 2 Answers 2
Most Linux apps are compiled with: make make install clean As I understand it, the make command takes names of build targets as arguments. So for example install is usually a target that copies some files to standard locations, and clean is a target that removes temporary files. But what target will make build if … Read more
I want to execute the following commands: ./a.out 1 ./a.out 2 ./a.out 3 ./a.out 4 . . . and so on How to write this thing as a loop in a Makefile? 15 Answers 15
In my GNUmakefile, I would like to have a rule that uses a temporary directory. For example: out.tar: TMP := $(shell mktemp -d) echo hi $(TMP)/hi.txt tar -C $(TMP) cf $@ . rm -rf $(TMP) As written, the above rule creates the temporary directory at the time that the rule is parsed. This means that, … Read more
I have a several Makefiles in app specific directories like this: /project1/apps/app_typeA/Makefile /project1/apps/app_typeB/Makefile /project1/apps/app_typeC/Makefile Each Makefile includes a .inc file in this path one level up: /project1/apps/app_rules.inc Inside app_rules.inc I’m setting the destination of where I want the binaries to be placed when built. I want all binaries to be in their respective app_type path: … Read more
I’ve used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg > rake –tasks rake db:charset # retrieve the charset for your data… rake db:collation # retrieve the collation for your da… rake db:create # Creates the databases defined in y… rake … Read more
This is my Makefile: REBAR=./rebar REBAR_COMPILE=$(REBAR) get-deps compile all: compile compile: $(REBAR_COMPILE) test: $(REBAR_COMPILE) skip_deps=true eunit clean: -rm -rf deps ebin priv doc/* docs: $(REBAR_COMPILE) doc ifeq ($(wildcard dialyzer/sqlite3.plt),) static: $(REBAR_COMPILE) build_plt analyze else static: $(REBAR_COMPILE) analyze endif I can run make compile multiple times and get aromanov@alexey-desktop:~/workspace/gm-controller/lib/erlang-sqlite$ make compile ./rebar get-deps compile ==> erlang-sqlite … Read more
