Re: Question

[David Chisnall]

On 6 Mar 2013, at 13:03, Laurent Michel <address@hidden> wrote:

> No I didn't. I'm not familiar with cmake. As I said, I must be missing 
> something in how to properly setup. 

My instructions had 'mkdir build' and 'cd build' for a reason...

> With 
> 
> make -f Makefile install
> 
> it worked (meaning it installed libobjc2 in /usr/local/lib)

Yes, when you ran cmake in the project root, it overwrote the existing 
Makefile, but not the GNUmakefile.  If you used GNU make, then it used the 
GNUmakefile in preference to the GNUmakefile.  This delegated to the Makefile 
for building, but not for installation.  

> and I managed to execute my program which now goes much further (still not 
> running correctly, but now it is probably something related to my build... It 
> claims that a method is not implemented even though it
> does work fine on MacOS). 
> 
> ./queens2: Uncaught exception NSInvalidArgumentException, reason: 
> ORModelI(instance) does not recognize addConstraint:
> 
> The addConstraint: does exist. Now a matter for me to figure out why it won't 
> find it.

Do you have a debug build of the runtime?  If so, do you have any error 
messages before this?  In your back trace, it it being called from a +load 
method?

> Also I'm getting lots of messages about autorelease being called without a 
> pool in place, but that might be on my end (even though i'm pretty sure an 
> autorelease pool is created right from the start with:
> 
> int main(int argc,char* argv[]) 
> {
> @autoreleasepool {
>       ...
> }
> }
> 
> Maybe there is an issue with this syntax with this version of the runtime?

This should be fine, however you will need to explicitly create autorelease 
pools if you have other threads.

David