gnu-make

I'm working on a medium sized project which contains several libraries with interdependence's which I've recently converted over to build using a non-recursive makefile. My next goal is to enable building of both debug and release builds out of the same source tree at the same time (make debug;make release). My first step was to make debug and release targets which contained the correct build flags. I did this using target specific variables, like this: CXXFLAGS=-Wall -Wextra -Werror -DLINUX CXX_DEBUG_FLAGS=-g3 -DDEBUG_ALL CXX_RELEASE_FLAGS=-O3 .PHONY: debug debug: CXXFLAGS+=$(CXX_DEBUG_FLAGS)

I have a bunch of applications that are built with the same type of make rule: apps = foo bar baz all: $(apps) foo: foo.o $(objects) $(link) bar: bar.o $(objects) $(link) baz: baz.o $(objects) $(link) If they had an extension (for example .x ) I could make a pattern rule like: %.x: %.o $(objects) $(link) and I wouldn't have to write out a new rule for each app. But they don't have an extension, and I'm pretty sure that: %: %.o $(objects) $(link) won't work (because it specifies that to build any file you can use this rule). Is there anyway to specify one rule that will cover all the $(apps)

Ever since I learned about -j I've used -j8 blithely. The other day I was compiling an atlas installation and the make failed. Eventually I tracked it down to things being made out of order - and it worked fine once I went back to singlethreaded make. This makes me nervous. What sort of conditions do I need to watch for when writing my own make files to avoid doing something unexpected with make -j? I think make -j will respect the dependencies you specify in your Makefile; i.e. if you specify that objA depends on objB and objC, then make won't start working on objA until objB and objC are

Sometimes, make's output fills the screen. It's a little bit hard to identify all the warning and error message lines. I know may shell color output can help Can anyone can help me? Fredrik Pihl Have a look at colormake , found here $ apt-cache search colormake colormake - simple wrapper around make to colorize output Using the power of google, I also found this bash-function. make() { pathpat="(/[^/]*)+:[0-9]+" ccred=$(echo -e "\033[0;31m") ccyellow=$(echo -e "\033[0;33m") ccend=$(echo -e "\033[0m") /usr/bin/make "$@" 2>&1 | sed -E -e "/[Ee]rror[: ]/ s%$pathpat%$ccred&$ccend%g" -e "/[Ww

I am writing a Makefile with a lot of repetitive stuff, e.g. debug_ifort_Linux: if [ $(UNAME) = Linux ]; then \ $(MAKE) FC=ifort FFLAGS=$(difort) PETSC_FFLAGS="..." \ TARGET=$@ LEXT="ifort_$(UNAME)" -e syst; \ else \ echo $(err_arch); \ exit 1; \ fi where the target 'syst' is defined, the variable 'UNAME' is defined (and is usually Linux, but might also by Cygwin or OSF1) and the variables 'difort' and 'err_arch' are also defined. This block of code is used very many times for different compiler targets (using a name convention of ' '). Since this is a huge amount of redundant code, I would

I am trying to get the target_compile to work. copy_shared_object: cp shared_object.so ${CURRENT_DIR} PROJECT_SIM_OPTS += -LDFLAGS -L${CURRENT_DIR},-lm -load target_compile: copy_shared_object actual_compile_with_sim_opts . . . actual_compile_with_sim_opts: . . . I am getting the Error despite the fact that I have not added ;\ on the first line starting with cp make: PROJECT_SIM_OPTS: Command not found makefile:282: recipe for target 'copy_shared_object' failed make: *** [copy_shared_object] Error 127 What you likely want is something like: ${CURRENT_DIR}/shared_object.so: shared_object.so cp