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| Re: OS X Dynamic Library will not link [message #148476 is a reply to message #148308] |
Fri, 08 July 2005 18:45  |
Eclipse User |
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Originally posted by: gwatson.lanl.gov
Probably a bug. Please open a bug report on it.
Greg
Mike Jackson wrote:
> On 2005-07-06 16:23:41 -0400, Mike Jackson <maillist@bluequartz.net> said:
>
>> I am trying to build a dynamic library from existing source code
>> checked out from CVS. We have an existing Makefile which I moved to
>> the side as it doesn't really work that well and chose to use a
>> "Managed C++ Makefile" project. The code seems to compile ok but fails
>> on the linking stage.
>> I can use my own makefile (the one I moved to the side) and the code
>> compiles and links just fine. Since I am a bit new to C++ I am not
>> sure if the problem is in the compiling stage and that is causing the
>> errors in the linking stage, or the problem really is in the linking
>> stage.
>>
>> Here is the final Compile step:
>>
>> Building file: ../Adaptors/ProgressBarUpdate.cpp
>> Invoking: GCC C++ Compiler
>> g++ -D_DEBUG -D_COMPILING_USUL -I/Users/mjackson/Library/Eclipse/ -O0
>> -g -c -arch ppc -pipe -Wno-trigraphs -fpascal-strings -fasm-blocks
>> -Wreturn-type -Wunused-variable -fmessage-length=0 -ffix-and-continue
>> -mtune=G4 -oAdaptors/ProgressBarUpdate.o
>> ../Adaptors/ProgressBarUpdate.cpp
>> Finished building: ../Adaptors/ProgressBarUpdate.cpp
>>
>> and then the link step:
>>
>> Building target: Usul.dylib
>> Invoking: MacOS X C++ Linker
>> g++ -Wl,-dylib -o Usul.dylib ./Types/Types.o ./Threads/Mutex.o
>> ./System/Host.o ./System/LastError.o ./System/Memory.o
>> ./System/Screen.o ./System/Socket.o ./State/Busy.o
>> ./Shared/Preferences.o ./Resources/CancelButton.o
>> ./Resources/EventQueue.o ./Resources/ProgressBar.o
>> ./Resources/ReportErrors.o ./Resources/StatusBar.o
>> ./Resources/TextWindow.o ./ID/GUID.o ./File/Temp.o ./Errors/Stack.o
>> ./Documents/Document.o ./Documents/Manager.o ./DLL/Library.o
>> ./DLL/Loader.o ./Components/Manager.o ./Components/Object.o
>> ./Components/Registry.o ./CommandLine/Arguments.o ./Base/Referenced.o
>> ./Base/Typed.o ./Adaptors/ProgressBarUpdate.o
>> /usr/bin/ld: /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../crt1.o
>> LC_LOAD_DYLINKER load command in object file (should not be in an
>> input file to the link editor for the output file type MH_DYLIB)
>> collect2: ld returned 1 exit status
>> make: *** [Usul.dylib] Error 1
>> make: Target `all' not remade because of errors.
>> Build complete for project Usul
>>
>> Here is the same thing, but from my own makefile:
>>
>> [Usul]:Compiling Adaptors/ProgressBarUpdate.cpp into
>> Darwin/Adaptors/ProgressBarUpdate.o
>> g++ -g -D_DEBUG -D_COMPILING_USUL -x c++ -arch ppc -pipe
>> -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -Wreturn-type
>> -Wunused-variable -fmessage-length=0 -ffix-and-continue -mtune=G4
>> -I../ -c Adaptors/ProgressBarUpdate.cpp -o
>> Darwin/Adaptors/ProgressBarUpdate.o
>>
>> and the Link Step:
>>
>> g++ -dynamiclib -install_name libUsul.dylib -g
>> Darwin/Adaptors/ProgressBarUpdate.o Darwin/Base/Referenced.o
>> Darwin/Base/Typed.o Darwin/CommandLine/Arguments.o
>> Darwin/Components/Manager.o Darwin/Components/Object.o
>> Darwin/Components/Registry.o Darwin/DLL/Library.o Darwin/DLL/Loader.o
>> Darwin/Documents/Document.o Darwin/Documents/Manager.o
>> Darwin/Errors/Stack.o Darwin/File/Temp.o Darwin/ID/GUID.o
>> Darwin/Resources/CancelButton.o Darwin/Resources/EventQueue.o
>> Darwin/Resources/ProgressBar.o Darwin/Resources/ReportErrors.o
>> Darwin/Resources/StatusBar.o Darwin/Resources/TextWindow.o
>> Darwin/Shared/Preferences.o Darwin/State/Busy.o Darwin/System/Host.o
>> Darwin/System/LastError.o Darwin/System/Memory.o
>> Darwin/System/Screen.o Darwin/System/Socket.o Darwin/Threads/Mutex.o
>> Darwin/Types/Types.o -o Darwin/libUsul.dylib
>>
>> Yes there are differences, but I am not really sure which one might be
>> causing the problems. Anyone have any ideas? Would like to switch to
>> Eclipse and be done with Xcode.
>>
>> Mike Jackson
>
>
> Replying to my own post, the linker on OS X 10.4.1 using GCC 4.0.0
> (Apple Computer, Inc. build 5026) does not seem to like the default
> setting of -Wl,dylib for a shared library. If I uncheck the box for
> those flags and put in "-dynamiclib" as a linker flag then the library
> links just fine.
> Is this a bug in the default config for the OS X version of CDT or
> something else that I am missing?
>
> Mike Jackson
>
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