Re: multi-threaded compiling

[Mischa Baars]

On Tue, Mar 12, 2024 at 9:32 AM Martin D Kealey <martin@kurahaupo.gen.nz>
wrote:

> In section one, the problem is that "wait -n" does not do what you think
> it does. (Lots of us think this behaviour is broken, and it may be fixed in
> an upcoming version of Bash.) You don't need '-n' when you specify a PID;
> the fix is simply to remove it.
>

Thanks. I already noticed the mistake yesterday and corrected it.


>
> In section two, the problem is that quote removal is done BEFORE variables
> are expanded, even though it prevents word splitting from being done AFTER
> variable expansion. Therefore writing VAR=" \"string 1\" \"string 2\" "
> absolutely cannot do what you might expect; the embedded quote marks will
> be used literally, and then (because ${CFLAGS[0]} is not quoted) the
> resulting string will be split on any embedded whitespace..
>
>
So.. how do I make the script produce the same output as the Makefile?
Using 'printf <%s>' as Chet said I should, does show the difference between
the two, but it doesn't fix the problem.


>
> On Mon, 11 Mar 2024 at 18:56, Mischa Baars <mjbaars1977.backup@gmail.com>
> wrote:
>
>> Hi,
>>
>> I'd like to compile a project of mine using multiple logical cores.
>>
>> I've attached the problem. It consists of two parts:
>>
>> 1) multi-threaded bash script and / or multi-threaded Makefile
>>
>> Running bash script functions as expected, but executing the same line of
>> code with make and / or the command line, does not function. Perhaps
>> someone could explain to me why?
>>
>> 2) passing a string argument from a bash script and / or Makefile to the
>> gcc -D option
>>
>> Running the makefile functions as expected, but I have not been able to
>> get
>> similar code to work from a bash script. Can someone please explain to me
>> what I'm doing wrong?
>>
>> Hope to hear from you soon.
>>
>> Best regards,
>> Mischa Baars.
>>
>