Paul Smith writes:
> I can't explain this nor reproduce it. On my system no matter what
> version of GNU make I test with, all the way back to 3.77, I get the
> same, expected behavior: the variable is not exported.
Paul,
Thank you very much for your reply. As you told, cause of the problem
was - chars in names of exported variables. Once I replaced them with
chars, my Makefiles started working again in Debian Stretch with
make 4.1.
> It should never be the case that the variable is exported, because
> "INSTALL-TOUCH" is not a valid shell variable (which consist of "_" and
> alphanumeric characters only and cannot start with a number). GNU make
> does not export variables that are not valid shell variables.
>
> I can't explain why it seems to work for you in Jessie. It doesn't work
> for me in GNU make 4.0 (built on my system from original source).
I re-tested on pure Debian Jessie and variable names with - chars are
exported. Below is the complete.
-- Juha
-----------------------------------------------------------------------
test$ more Makefile core/Makefile
::::::::::::::
Makefile
::::::::::::::
export INSTALL-TOUCH=touch
all: core
.PHONY: core
core:
@echo "INSTALL-TOUCH is $(INSTALL-TOUCH)"
$(MAKE) -C core all;
::::::::::::::
core/Makefile
::::::::::::::
all: core
.PHONY: core
core:
@echo "INSTALL-TOUCH in core is $(INSTALL-TOUCH)"
test$ make all
INSTALL-TOUCH is touch
make -C core all;
make[1]: Entering directory 'test/core'
INSTALL-TOUCH in core is touch
make[1]: Leaving directory 'test/core'
test$
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