Further problems trying to build GNUstep with blocks/properties support

[Thomas Davie]

Hi,

I think I've got a bit further with having a working GNUstep install, but I've 
not got all the way there yet.

The version of clang that David suggested has the same issue with 
non-termination for me, because of that, I've dropped back to using gcc-4.4.3.

I'm getting some fairly major problems trying to get a working libobjc though.
 • If I try to link against /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libobjc.a I get 
this error building gnustep-base:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libobjc.a(archive.o): 
relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a 
shared object; recompile with -fPIC

 • If I try to link against /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libobjc.so I 
get this error building gnustep-base:
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libobjc.so: undefined 
reference to `__gxx_personality_v0'
../Source/./obj/libgnustep-base.so: undefined reference to 
`objc_get_stream_class_version'
../Source/./obj/libgnustep-base.so: undefined reference to `objc_verror'
../Source/./obj/libgnustep-base.so: undefined reference to 
`__objc_add_class_to_hash'
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libobjc.so: undefined 
reference to `std::terminate()'
collect2: ld returned 1 exit status

• If I install libobjc from http://svn.gna.org/svn/gnustep/libs/libobjc, then 
gnustep-base builds, but I don't get the symbols for blocks, so my eventual 
build of my project fails, specifically like this:
./obj/BDS.obj/Classes/Database/BDDatabase.m.o:(.data.rel+0x4c0): undefined 
reference to `__gnu_objc_personality_v0'
./obj/BDS.obj/Classes/Network/BDServerSession.m.o: In function 
`_i_BDServerSession__findExistingOrCreateGameMatchingStats_failureReason_':
/home/tatd2/Documents/Battle Dungeon/Classes/Network/BDServerSession.m:231: 
undefined reference to `_NSConcreteStackBlock'
./obj/BDS.obj/Classes/Network/BDServerSession.m.o:(.data.rel+0x460): undefined 
reference to `__gnu_objc_personality_v0'
./obj/BDS.obj/Classes/Network/BDRequest.m.o:(.data.rel+0x170): undefined 
reference to `__gnu_objc_personality_v0'
./obj/BDS.obj/Classes/Server/BDConfig.m.o:(.data.rel+0x130): undefined 
reference to `__gnu_objc_personality_v0'
./obj/BDS.obj/Classes/Server/BDConnectionManager.m.o:(.data.rel+0x250): 
undefined reference to `__gnu_objc_personality_v0'
./obj/BDS.obj/Classes/Server/BDConnection.m.o:/home/tatd2/Documents/Battle 
Dungeon/Classes/Server/BDConnection.m:211: more undefined references to 
`BN_clear_free' follow
./obj/BDS.obj/Classes/Model/Immutable/Folder.m.o:(.data.rel.ro+0x0): undefined 
reference to `_NSConcreteGlobalBlock'
./obj/BDS.obj/Classes/Model/Immutable/Script.m.o: In function 
`_i_Script__newNodePosition':
/home/tatd2/Documents/Battle Dungeon/Classes/Model/Immutable/Script.m:204: 
undefined reference to `_NSConcreteStackBlock'
collect2: ld returned 1 exit status

• If I install libojbc2 from http://svn.gna.org/svn/gnustep/libs/libobjc2, then 
gnustep-base fails to configure, reporting that my objc compiler doesn't 
produce valid output:
checking whether objc really works... no
I don't seem to be able to use your Objective-C compiler to produce
working binaries!  Please check your Objective-C compiler installation.
If you are using gcc-3.x make sure that your compiler's libgcc_s and libobjc
can be found by the dynamic linker - usually that requires you to play
with LD_LIBRARY_PATH or /etc/ld.so.conf.
Please refer to your compiler installation instructions for more help.
configure: error: The Objective-C compiler does not work or is not installed 
properly.


I'm really not sure where I need to go from here.  Exactly which libraries 
should I be building in what order to get this all to work nicely?

Thanks

Bob