Re: Problems building gnustep-base on Ubuntu Linux with clang/llvm-3.7

[David Chisnall]

On 28 Sep 2015, at 19:02, David Lobron <dlobron@akamai.com> wrote:
> 
> Hey David,
> 
>> /usr/local/{include,lib} is not in the default search path for gcc / clang 
>> on Ubuntu.  You should install libobjc2 with the prefix set to /usr/ or 
>> explicitly add /usr/local to the search paths when configuring -make (see my 
>> earlier email).
> 
> I rebuilt libobjc2 with the prefix set to /usr (I left off the trailing 
> slash, because paths are appended to it with a slash).  This appeared to work 
> find, and the libs are now in /usr/lib.  I uninstalled them from 
> /usr/local/lib, as well, to avoid any confusion:
> 
> :~/build/clangport/akamai/gnustep-base/gnustep-base-1.24.8$ ls -l 
> /usr/lib/libobjc*  
> lrwxrwxrwx 1 root root     14 Sep 28 17:48 /usr/lib/libobjc.so -> 
> libobjc.so.4.6
> -rw-r--r-- 1 root root 243188 Sep 28 17:47 /usr/lib/libobjc.so.4.6
> lrwxrwxrwx 1 root root     16 Sep 28 17:48 /usr/lib/libobjcxx.so -> 
> libobjcxx.so.4.6
> -rw-r--r-- 1 root root  19282 Sep 28 17:47 /usr/lib/libobjcxx.so.4.6
> :~/build/clangport/akamai/gnustep-base/gnustep-base-1.24.8$ ls -l 
> /usr/local/lib/libobjc* 
> ls: cannot access /usr/local/lib/libobjc*: No such file or directory
> 
> So far, this seems correct.  But I'm still having the same issue: 
> OBJC2RUNTIME is true and HAVE_BLOCKS is false, leading make to build the 
> ObjectiveC2 subproject.  The namespace clash confirms that it's looking in 
> /usr/include/objc, not /usr/local/include/objc:
> 
> ../../Headers/ObjectiveC2/objc/runtime.h:89:15: error: typedef redefinition 
> with different types ('void *' vs 'struct objc_property *')
> typedef void *objc_property_t;
>              ^
> /usr/include/objc/runtime.h:143:31: note: previous definition is here
> typedef struct objc_property* objc_property_t;
> 
> Do you have any other ideas as to what I might be doing wrong?

Can you find the output in config.log from the test that’s determining that you 
don’t have blocks support?  It may be that you need to add -fblocks to 
[OBJ]C[C]FLAGS.  Just to confirm: You did reconfigure / reinstall GNUstep-make 
after reinstalling the runtime?

David

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