Re: shell script return on a makefile.

[John Calcote]

German,

This is easier than you think. Just remove the $(shell ... ) from around
your shell call and add the call to a target like this:

check_code:
        /path/to/my/script.sh

Then put the check_code target in your dependency graph somewhere.
Scripts return values to the shell. If you call these as commands
instead of having the make $(shell) macro invoke them, the exit code
becomes the command status to make.

John

On 6/14/2010 9:34 AM, German Escallon wrote:
> Hello all,
>
> How can I stop a build process based on the outcome of a shell script?
> What I want to do is to run a script that verifies some of my code. 
> If the script succeeds, then I would continue to the next step, but if
> it fails, I want to stop the make process.
>
> First things first.  How can I know if my script succeeded or not?? 
> I've tried reading and printing the $? environment variable.  Here's
> what I've tried with a script that should always fail.
>
> e.g:
>   @$(shell /path/to/my/script.sh)
>   @echo "result: $$?"
>
> The line always prints "result: 0", regardless of the result. When I
> run this same script on the console, and then echo the $? variable, I
> always get the error code I'm hoping for.
> If you have any suggestions on how to know the outcome of a script
> w/out using the $? environment variable, please let me know.  Thank
> you in advance.
>
>
> German
>
>
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