Re: libobjc2 build issues (missing files)

[Andreas Fink]

ok the segfaults was just the wrong linker again.

        export LDFLAGS="-fuse-ld=/usr/bin/ld.gold"

was missing.


Now everything compiles, the gnustep tests all pass (except some minor issues 
with date formats)
However if I build my applications, I get undefined references to   
cxa_guard_release. This is some C++ stufff. I dont use C++ or ObjC++ in my code 
anywhere. Never the less there are some linking against it from 3 libraries I 
have. These all have something in comon
Apparently libobjc2  has a reference to cxa_guard_release but I'm not sure why 
its not properly linked against if it needs it.

I'm compiling with clang-11 from the llvm repo and this uses libc++ not 
libstdc++ now I believe.
So probably a few cflags to be added. Any hint anyone?


> On 5 Mar 2020, at 12:04, Wolfgang Lux <wolfgang.lux@gmail.com> wrote:
> 
> 
> 
>> Am 05.03.2020 um 11:21 schrieb Andreas Fink <afink@list.fink.org>:
>> 
>> CMakeFiles/objc.dir/libstdcxx_current_primary_exception.cc.o
>> /Users/afink/development/gnustep/libobjc2/arc.mm:6:10: fatal error: 
>> 'third_party/robin-map/include/tsl/robin_map.h' file not found
>> #include "third_party/robin-map/include/tsl/robin_map.h"
>>        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> 1 error generated.
>> make[2]: *** [CMakeFiles/objc.dir/build.make:411: 
>> CMakeFiles/objc.dir/arc.mm.o] Error 1
>> make[2]: *** Waiting for unfinished jobs....
>> [ 16%] Linking CXX static library libobjc.a
>> make[1]: *** [CMakeFiles/Makefile2:484: CMakeFiles/objc.dir/all] Error 2
>> make[1]: *** Waiting for unfinished jobs....
>> [ 16%] Built target objc-static
>> make: *** [Makefile:163: all] Error 2
>> 
>> 
>> Can anyone hint where this file should come from?
> 
> Those files are coming from a submodule. IIRC, you need to execute
>  git submodule init
> once in your clone.
> 
> Wolfgang
>