On Wed, 2018-01-24 at 12:46 +0100, Phi Debian wrote: > 1) I'd like that -jN do leave some foot print in the environment, OR > better set a gmake internal variable (predefined name) with the number > that as given.
> 2) I'd like o suppress the enter/leaving message. > make: Entering directory '...' > make: Leaving directory '...' The answer to both your questions is the MAKEFLAGS variable (although for the first one you need GNU make 4.2 or higher). https://www.gnu.org/software/make/manual/html_node/Options_002fRecursion.html The amount of -j is available in MAKEFLAGS; with no -j: $ echo 'all:;$(info MAKEFLAGS is $(MAKEFLAGS))' | make -f- MAKEFLAGS is With some -j: $ echo 'all:;$(info MAKEFLAGS is $(MAKEFLAGS))' | make -f- -j5 MAKEFLAGS is -j5 --jobserver-auth=3,4 (ignore the jobserver option). So you can use something like: $ echo 'all:;$(info -j is $(patsubst -j%,%,$(filter -j%,$(MAKEFLAGS))))' | make -f- -j is $ echo 'all:;$(info -j is $(patsubst -j%,%,$(filter -j%,$(MAKEFLAGS))))' | make -f- -j5 -j is 5 For suppressing enter/leave messages, you can just add --no-print- directory to MAKEFLAGS yourself, for example in the makefile: $ cat Makefile all: ; $(MAKE) recurse recurse: ; : recurse $ make make recurse make[1]: Entering directory '/tmp' : recurse make[1]: Leaving directory '/tmp' Now try: $ cat Makefile MAKEFLAGS += --no-print-directory all: ; $(MAKE) recurse recurse: ; : recurse $ make make recurse : recurse _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
