On Fri, 27 Mar 2020 07:18:11 +0100
Hendrik Sattler <[email protected]> wrote:
> Hi Carlo,
>
> The answer is already right in front of you: "a && b" executes b only
> if a returns positive (zero exit code). This is already done for the
> mkdir.
>
> And to answer the other question: no, you cannot assume a POSIX shell
> in a Makefile.
>
> HS
Hi Hendrik,
thank you for your reply :). I kinda overlooked that I have to admit.
I think my brain saw the '&&' as shell scripting and the question
was if that is portable, or that the generated Makefile on my system
made use of that because of the platform that I am using.
So, for clarity, I can use:
add_custom_command(
...
COMMAND ${cmd} && ${CMAKE_COMMAND} -E touch ${stamp_file}
)
Where ${cmd} is the user defined command,
and that will work portably on all supported platforms?
How should I do this for GENERATOR_IS_MULTI_CONFIG?
Carlo Wood
PS I assume that '||' also works then. Namely I also need the
stamp file to be created when it doesn't exist.
So really I need in addition
COMMAND test -e ${stamp_file} || ${CMAKE_COMMAND} -E touch ${stamp_file}
Is 'test -e' also portable?
--
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