[CMake] Undefined reference to __Unwind_Resume when building a universal binary with make on Mac OS X

[Ryan Pavlik]

  if(APPLE)
     set(CMAKE_OSX_DEPLOYMENT_TARGET 10.5)
endif()

Hope this helps!

Ryan

On 9/10/10 9:19 AM, Pedro d'Aquino wrote:
> The problem wasn't related to the universal binaries, but to the SDK 
> used (10.5). I need to add "-mmacosx-version-min=10.5" to the compiler 
> flags in order to make it work.
>
> Shouldn't this be handled automatically by CMake?
>
> On Fri, Sep 10, 2010 at 8:46 AM, Pedro d'Aquino <budsbd at gmail.com 
> <mailto:budsbd at gmail.com>> wrote:
>
>     Hi everyone,
>
>     I'm currently modifying an existing CMake-based project to build
>     universal binaries on 10.6.4. Xcode 3.2.3 builds the new project
>     fine, but the make-based compilation fails because of an undefined
>     symbol, __Unwind_Resume.
>
>     The actual command used for compiling each C++ file is (from
>     VERBOSE=1):
>     /usr/bin/c++    -Wall -Wno-multichar -O2 -g -Wall -Wno-multichar
>     -arch i386 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk ....
>
>     After all files are compiled successfully, linking fails with the
>     following message:
>
>     Undefined symbols:
>       "__Unwind_Resume", referenced from:
>           macosx::MacLibraryLoader::release(ILibraryInterface**)in
>     mac_library_loader.cpp.o
>           macosx::MacLibraryLoader::getInterface()    in
>     mac_library_loader.cpp.o
>         
>      macosx::MacLibraryLoader::MacLibraryLoader(std::basic_string<char, std::char_traits<char>,
>     std::allocator<char> > const&)in mac_library_loader.cpp.o
>           .....
>
>     It seems __Unwind_Resume is referenced in just about every .cpp
>     file I compile.
>
>     The only change I've made from my original, i386-only project was add
>
>     if(APPLE)
>     SET(CMAKE_OSX_ARCHITECTURES "i386;x86_64")
>     set(CMAKE_OSX_SYSROOT /Developer/SDKs/MacOSX10.5.sdk)
>     endif()
>
>     Does anyone know what is going on?
>
>     Thanks a lot,
>
>     Pedro d'Aquino
>
>
>
>
>
>
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-- 
Ryan Pavlik
Human-Computer Interaction Graduate Student
Virtual Reality Applications Center
Iowa State University

http://academic.cleardefinition.com/

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