Re: Cannot build with libobjc2

[Eric Wasylishen]

Hi Larry,
Unfortunately, the most recent base release isn't libobjc2 compatible. I 
believe this is fixed in SVN, though.
Eric

On Nov 1, 2010, at 3:14 PM, Larry Campbell wrote:

> I was able to build and install libobjc2 1.0 itself just fine, but when I try 
> to build base (1.20.1), configure fails at this step:
> 
>       checking whether objc really works... no 
> 
> because the test program includes objc-common.g, which contains this snippet:
> 
>       #include <objc/Object.h>
> 
>       #ifndef NeXT_RUNTIME
>       #include <objc/NXConstStr.h>
> 
> which includes the NXConstStr.h from my gcc 4.1 installation 
> (/usr/lib/gcc/i486-linux-gnu/4.1.2/include/objc/NXConstStr.h); this file 
> includes its own objc/Object.h, which conflicts with libobjc2's 
> objc/Object.h, and I get:
> 
> In file included from 
> /usr/lib/gcc/i486-linux-gnu/4.1.2/include/objc/NXConstStr.h:31,
>                 from ./config/objc-common.g:9,
>                 from ./config/config.objc.m:2,
>                 from conftest.c:87:
> /usr/lib/gcc/i486-linux-gnu/4.1.2/include/objc/Object.h:44: error: 
> redefinition of 'struct Object'
> 
> etc.
> 
> Am I missing something obvious? I did do a 'make install' in my libobjc2 dir.
> 
> - lc
> 
> 
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