The concept is called pattern rules. You can read about it in GNU make manual. $(GRAPHDIR)/%.png: $(GRAPHDIR)/%.dot dot $< -Tpng -o $@ graphs: $(patsubst %,$(GRAPHDIR)/%.png, Complex Simple IFileReader McCabe)\ or just %.png: %.dot dot $< -Tpng -o $@ graphs: $(patsubst %,$(GRAPHDIR)/%.png, Complex Simple IFileReader McCabe) You can also remove all repetition by extracting one of … Read more
Put a – before the command, e.g.: -myProg bad_input >> test.log GNU make will then ignore the process exit code.
This: filename.jar: $(wildcard res/**/*) seems to work, at least on some platforms. EDIT: Or better, just cut the knot: filename.jar: $(shell find res -type f)
You are talking about two separate but intertwined things here: Autotools GNU coding standards Within Autotools, you have several projects: Autoconf Automake Libtool Let’s look at each one individually. Autoconf Autoconf easily scans an existing tree to find its dependencies and create a configure script that will run under almost any kind of shell. The … Read more
Disabling the built-in rules is done by writing an empty rule for .SUFFIXES: .SUFFIXES: Having erased the built-in rules, I’m not sure that erasing the built-in variables helps you much more than just remembering to set them yourself or not use them, but you could use something like $(foreach V, $(shell make -p -f/dev/null 2>/dev/null … Read more
Check out the override directive. You will probably need to modify the makefile once, but it should do what you want. Example makefile: override CFLAGS += -Wall app: main.c gcc $(CFLAGS) -o app main.c Example command lines: $ make gcc -Wall -o app main.c $ make CFLAGS=-g gcc -g -Wall -o app main.c
From the manual: $(error Bad svn version v1.4, please install v1.6) This will result make to a fatal error: $ make Makefile:2: *** Bad svn version v1.4, please install v1.6. Stop.
Since you’re using GNUmake, use a pattern rule for compiling object files: $(OBJDIR)/%.o: %.c $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
make -d should give you more than enough information to debug your makefile. Be warned: it will take some time and effort to analyze the output but loading the output into your favorite editor and doing searches will assist a lot. You can greatly reduce the amount of debugging output if you specify the specific … Read more
I am fairly sure this will work: make VERBOSE=1 You should also be able to add this to your CMakeLists.txt to permanently set that: set(CMAKE_VERBOSE_MAKEFILE on) This is covered in the CMake FAQ.