Re: libobjc2 build issues (missing files)
> Am 05.03.2020 um 11:21 schrieb Andreas Fink : > > 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
Re: libobjc2 build issues (missing files)
actually git submodule init git submodule update did the trick. now libobjc2 is installed but when compiling gnustep-base, all looks fine but make check returns all tests fail with a segfault... Its probably something easy to fix but im not sure whats the easiest way to run such a test by hand with lldb > On 5 Mar 2020, at 12:04, Wolfgang Lux wrote: > > > >> Am 05.03.2020 um 11:21 schrieb Andreas Fink : >> >> 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 >
Re: libobjc2 build issues (missing files)
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 wrote: > > > >> Am 05.03.2020 um 11:21 schrieb Andreas Fink : >> >> 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 >
Re: libobjc2 build issues (missing files)
(Re-adding the list since I foobared the last mail) You could try forcing libobjc2 to be linked against libc++, if you’re not reliant on EH interop with C++ (I don’t have the cmake flag for that present, I‘m afraid). But you’re probably better off using libstdc++ for the time being. N -- Sent on the road > Am 05.03.2020 um 13:50 schrieb Andreas Fink : > > so what would be the work around to get this working? > Im trying to get this done in Debian 10 (Buster). Interestingly only my app > seems to complain when I compile. And it seems to have something to do with > statics. > Under Debian 9 everything works. I dont use any C++ code myself (but some > external libraries which only use standard C++, not ObjC++). > > >> On 5 Mar 2020, at 13:44, niels.gr...@halbordnung.de wrote: >> >> Hi Andreas, >> >> libobjc2 is not compatible with libc++ atm, in particular EH interop is >> broken and the robin-map implementation is non-header-only with libc++, >> which is why you are seeing missing symbols. I am semi-actively working on >> that (#142 in libobjc2) >> >> Cheers, >> >> Niels >> -- >> Sent on the road >> Am 05.03.2020 um 12:55 schrieb 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 wrote: >>> Am 05.03.2020 um 11:21 schrieb Andreas Fink : >> 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 > >
Re: libobjc2 build issues (missing files)
Hi Andreas, > On Mar 5, 2020, at 03:55, Andreas Fink wrote: > > ok the segfaults was just the wrong linker again. >export LDFLAGS="-fuse-ld=/usr/bin/ld.gold" > was missing. > >>> 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" >>> ^~~ >> git submodule init >> once in your clone. For your reference, Johannes has collected knowledge like the above (submodes, LD, etc) into a script that builds for Debian 10 with Clang 8. https://github.com/plaurent/gnustep-build/tree/master/debian-10-clang-8.0 Patryk
Re: libobjc2 build issues (missing files)
> On 5 Mar 2020, at 14:36, niels.gr...@halbordnung.de wrote: > > (Re-adding the list since I foobared the last mail) > > You could try forcing libobjc2 to be linked against libc++, if you’re not > reliant on EH interop with C++ (I don’t have the cmake flag for that present, > I‘m afraid). But you’re probably better off using libstdc++ for the time > being. > > N adding -stdlib=libstdc++ to CFLAGS did the trick. clang always complains about unused compiler options (probably when compiling c instead of c++) are filling the screen but at the end the binary works
Re: libobjc2 build issues (missing files)
Hi, Andreas Fink wrote: > ok the segfaults was just the wrong linker again. > > export LDFLAGS="-fuse-ld=/usr/bin/ld.gold" > > was missing. when do you set this? before running cmake? or make? of libobjc? Or do you set it globally before configuring gnustep make. Riccardo
