Can't get binder “-n” and “-z” options working

Can't get binder “-n” and “-z” options working

[Yannick Duchêne (Hibou57)]

Hi,

I must be stupid in some way and that must be simple, I already did this  
some long time ago, but I can't get it working any‑more. I need to use an  
external C main entry point, but both the “-n” and “-z” options added to  
Default_Switches in the Binder package in my GPR file, seems to have no  
effect at all, building with gprbuild.

If I remove my custom main sub‑program, I should get an error at link  
time, but it don't. If I explicitly adds the object which contains the  
custom main sub‑program to the linker options, I get a link error due to  
main being defined two times.

These options are still supported, isn't it? Is there a known bug with  
these option or is it me missing something stupid?


-- 
“Syntactic sugar causes cancer of the semi-colons.” [1]
“Structured Programming supports the law of the excluded muddle.” [1]
[1]: Epigrams on Programming — Alan J. — P. Yale University

Re: Can't get binder “-n” and “-z” options working

[Yannick Duchêne (Hibou57)]

Le Sun, 14 Apr 2013 02:23:12 +0200, Yannick Duchêne (Hibou57)  
<yannick_duchene@yahoo.fr> a écrit:

> Hi,
>
> I must be stupid in some way and that must be simple, I already did this  
> some long time ago, but I can't get it working any‑more. I need to use  
> an external C main entry point, but both the “-n” and “-z” options added  
> to Default_Switches in the Binder package in my GPR file, seems to have  
> no effect at all, building with gprbuild.
>
> If I remove my custom main sub‑program, I should get an error at link  
> time, but it don't. If I explicitly adds the object which contains the  
> custom main sub‑program to the linker options, I get a link error due to  
> main being defined two times.
>
> These options are still supported, isn't it? Is there a known bug with  
> these option or is it me missing something stupid?


As soon posted, as soon solved.

I was just confused by a second utility program (a C one) built by the  
same GPR file, with something like `for Main use ("app1", "app2");`.  
That's solved now, I removed the second program, so that its own main  
entry point does not get unfortunately used.

By the way, only `-n` is required here. This works with the combination of  
`-n` and `-z` together, but that's not the purpose of `-z`, as if it works  
the two are combined, that's just the `-n` option defeating the `-z`  
option, which should not be used for the purpose of having an external  
main entry point.


-- 
“Syntactic sugar causes cancer of the semi-colons.” [1]
“Structured Programming supports the law of the excluded muddle.” [1]
[1]: Epigrams on Programming — Alan J. — P. Yale University