On Mon, 2025-02-10 at 03:40 +0900, Masahiro Yamada wrote:
> ifeq ($(SUBMAKE),)
> MAKEFLAGS += --no-print-directory
> MAKEFLAGS += -rR
> all:
> @echo in top: MAKEFLAGS=$(MAKEFLAGS)
> $(MAKE) -w SUBMAKE=1
> else
> all:
> @echo in submake: MAKEFLAGS=$(MAKEFLAGS)
> endif
>
>
> $ make
> in top: MAKEFLAGS=rR --no-print-directory --print-directory
> make SUBMAKE=1
> in submake: MAKEFLAGS=rR --no-print-directory -- SUBMAKE=1
You don't specify which version of GNU Make you're using, but this
works as expected in the current release:
~$ make --version
GNU Make 4.4.1
...
~$ make
in top: MAKEFLAGS=rR --no-print-directory
make -w SUBMAKE=1
make[1]: Entering directory '/tmp/foo'
in submake: MAKEFLAGS=rRw -- SUBMAKE=1
make[1]: Leaving directory '/tmp/foo'
