It is actually executing the command, changing the directory to some_directory, however, this is performed in a sub-process shell, and affects neither make nor the shell you’re working from. If you’re looking to perform more tasks within some_directory, you need to add a semi-colon and append the other commands as well. Note that you cannot … Read more
Here’s the Makefile I’ve added to the documentation (currently in review so I’ll post it here) : # Set project directory one level above the Makefile directory. $(CURDIR) is a GNU make variable containing the path to the current working directory PROJDIR := $(realpath $(CURDIR)/..) SOURCEDIR := $(PROJDIR)/Sources BUILDDIR := $(PROJDIR)/Build # Name of the … Read more
Thanks to Alex (see answer) i went further in my search. What i found is that it is recorded in TODO.private of make project for 15 years …. Using git://git.savannah.gnu.org/make.git you can see history of TODO.private content : 6) Right now the .PRECIOUS, .INTERMEDIATE, and .SECONDARY pseudo-targets have different capabilities. For example, .PRECIOUS can take … Read more
The shell function. You can use shell function: current_dir = $(shell pwd). Or shell in combination with notdir, if you need not absolute path: current_dir = $(notdir $(shell pwd)). Update. Given solution only works when you are running make from the Makefile’s current directory. As @Flimm noted: Note that this returns the current working directory, … Read more
CPPFLAGS is supposed to be for flags for the C PreProcessor; CXXFLAGS is for flags for the C++ compiler. The default rules in make (on my machine, at any rate) pass CPPFLAGS to just about everything, CFLAGS is only passed when compiling and linking C, and CXXFLAGS is only passed when compiling and linking C++.
Under Bash (at least), this can be done automatically with tab completion: make spacetabtab
Here’s what I had good results with using CMake and Visual Studio or GNU toolchains: Exchange GNU make with Ninja. It’s faster, makes use of all available CPU cores automatically and has a good dependency management. Just be aware of a.) You need to setup the target dependencies in CMake correctly. If you get to … Read more
You have two problems in this rule (well, three): $(OBJECTS): $(SOURCES) $(CC) $(CFLAGS) -c $(SOURCES) $(LIB_PATH) $(LIBS) You haven’t noticed yet, but the rule makes each object dependent on all sources, and tries to build that way. Not a problem as long as you have only one source. Easy to fix with a static pattern … Read more
Since you’re using GNUmake, use a pattern rule for compiling object files: $(OBJDIR)/%.o: %.c $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
They control the behaviour of make for the tagged command lines: @ suppresses the normal ‘echo’ of the command that is executed. – means ignore the exit status of the command that is executed (normally, a non-zero exit status would stop that part of the build). + means ‘execute this command under make -n‘ (or … Read more