Re: libobjc2 on windows

[Vincent Richomme]

> On 15 Mar 2010, at 15:16, Vincent Richomme wrote:
> 
>> Ok fine so this time this error is bit harder to fix for me : 
>> 
>> clang libobjc_entry.c -c \
>>              -MMD -MP -DDLL_EXPORT -D__OBJC_RUNTIME_INTERNAL__=1
>> -D_XOPEN_SOURCE=500 -DGNUSTEP -DGNUSTEP_BASE_LIBRARY=1
>> -DGNU_GUI_LIBRARY=1
>> -DGNU_RUNTIME=1 -DGNUSTEP_BASE_LIBRARY=1 -DGNUSTEP_WITH_DLL
>> -DBUILD_libobjc_DLL=1 -g -Wall -DDEBUG -fno-omit-frame-pointer -DGSWARN
>> -DGSDIAGNOSE -Wno-import -g -Werror -std=c99 -g -march=native
>> -fexceptions
>> -I. -I/home/Vincent/GNUstep/Library/Headers
>> -I/GNUstep/Local/Library/Headers -I/GNUstep/System/Library/Headers \
>>               -o obj/libobjc_entry.c.o
> 
> I can't help with this one at all, unfortunately.  This file is from the
> original GCC code and is apparently needed for building on Windows, but
> I've no idea what it's actually meant to do.  You can try just removing
it
> and see what that breaks...
> 

Ok so finally I get loads of linker errors :

clang  -shared -Wl,--enable-auto-image-base
-Wl,--out-implib,./obj/libobjc.dll.a  -Wl,--enable-auto-import -g
-ltoydispatch      -o ./obj/objc-4.dll obj/class.c.o obj/class_table.c.o
obj/encoding.c.o obj/hash_table.c.o obj/exception.c.o obj/gc.c.o
obj/hash.c.o obj/init.c.o obj/misc.c.o obj/nil_method.c.o obj/objects.c.o
obj/protocol.c.o obj/runtime.c.o obj/sarray.c.o obj/selector.c.o
obj/sendmsg.c.o obj/thr.c.o obj/libobjc_entry.c.o obj/NSBlocks.m.o
obj/NXConstStr.m.o obj/Object.m.o obj/Protocol.m.o obj/blocks_runtime.m.o
obj/linking.m.o obj/mutation.m.o obj/properties.m.o obj/sync.m.o   -L
toydispatch/obj   -L/home/Vincent/GNUstep/Library/Libraries
-L/GNUstep/Local/Library/Libraries -L/GNUstep/System/Library/Libraries  
-lpthread -lgnustep-gui -lgnustep-base -lws2_32 -ladvapi32 -lcomctl32
-luser32 -lcomdlg32 -lmpr -lnetapi32 -lm -I. 
Creating library file:
./obj/libobjc.dll.aobj/class_table.c.o:fake:(.data+0x34): multiple
definition of `_objc_lookup_class'
obj/class.c.o:fake:(.data+0x0): first defined here
obj/class_table.c.o:fake:(.data+0x38): multiple definition of
`_objc_load_callback'
obj/class.c.o:fake:(.data+0xbc): first defined here
obj/class_table.c.o:fake:(.data+0x3c): multiple definition of
`_objc_object_alloc'
obj/class.c.o:fake:(.data+0xc0): first defined here
obj/class_table.c.o:fake:(.data+0x40): multiple definition of
`_objc_object_copy'
obj/class.c.o:fake:(.data+0xc4): first defined here
obj/class_table.c.o:fake:(.data+0x44): multiple definition of
`_objc_object_dispose'
obj/class.c.o:fake:(.data+0xc8): first defined here
obj/class_table.c.o:fake:(.data+0x48): multiple definition of
`_objc_malloc'
obj/class.c.o:fake:(.data+0xcc): first defined here
obj/class_table.c.o:fake:(.data+0x4c): multiple definition of
`_objc_atomic_malloc'
obj/class.c.o:fake:(.data+0xd0): first defined here
obj/class_table.c.o:fake:(.data+0x50): multiple definition of
`_objc_valloc'
obj/class.c.o:fake:(.data+0xd4): first defined here
obj/class_table.c.o:fake:(.data+0x54): multiple definition of
`_objc_realloc'
obj/class.c.o:fake:(.data+0xd8): first defined here
obj/class_table.c.o:fake:(.data+0x58): multiple definition of
`_objc_calloc'
obj/class.c.o:fake:(.data+0xdc): first defined here
obj/class_table.c.o:fake:(.data+0x5c): multiple definition of `_objc_free'
obj/class.c.o:fake:(.data+0xe0): first defined here
obj/class_table.c.o:fake:(.data+0x60): multiple definition of
`__objc_msg_forward'
obj/class.c.o:fake:(.data+0xe4): first defined here
obj/class_table.c.o:fake:(.data+0x64): multiple definition of
`__objc_msg_forward2'
obj/class.c.o:fake:(.data+0xe8): first defined here
...
fu000001.o:(.idata$2+0xc): undefined reference to `libmsvcrt_a_iname'
fu000004.o:(.idata$2+0xc): undefined reference to `libmsvcrt_a_iname'
fu000006.o:(.idata$2+0xc): undefined reference to `libmsvcrt_a_iname'
fu000008.o:(.idata$2+0xc): undefined reference to `libmsvcrt_a_iname'
fu000010.o:(.idata$2+0xc): undefined reference to `libmsvcrt_a_iname'
fu000012.o:(.idata$2+0xc): more undefined references to
`libmsvcrt_a_iname' follow
nmth000000.o:(.idata$4+0x0): undefined reference to `_nm___iob



I have a question, when using clang does it use linker from binutils or
does it have 
its own linker ?