[lldb-dev] LLDBWrapPython.cpp missing message

[Matthew Gardiner]

Ok, thanks.

Zachary Turner wrote:
> LLDBWrapPython.cpp is a generated file. It's normal that the file 
> doesn't exist if you're doing a clean build.  But it's unusual that 
> it's calling 
> "/home/mg11/src/p4play/build/tools/lldb/scripts/LLDBWrapPython.cpp" a 
> *target*, and not a file.  I'm also not sure why I've never seen this 
> message before, maybe it's platform specific?  Still, my first thought 
> is that there's a bug in the CMake, because that shouldn't be a 
> target, it should be a file, which is generated when building some 
> other target.  Either way, I would suggest just trying to debug the 
> CMake a little.  Find the target that supposedly generates that file, 
> then find the place where add_dependency is called.  Make sure that 
> the dependency is specifying the target and not the file.
>
>
> On Mon, Jul 21, 2014 at 3:41 AM, Matthew Gardiner <mg11 at csr.com 
> <mailto:mg11 at csr.com>> wrote:
>
>     Hi folks
>
>     I've been having trying to get the lldb python tests working. My
>     setup is linux Fedora Core 20 64 bit. I tried to follow some of
>     Todd Fiala's troubleshooting tips earlier using the autoconf/make
>     route, and I got bogged down with some faults (see [lldb-dev]
>     Problems running the lldb tests on Fedora Core 20 - 64bit (email
>     originally titled "Add kalimba as a platform.").
>
>     So I thought I'd try the cmake/ninja route and see if things are
>     different. I invoked cmake as follows:
>
>     $ cmake ../llvm/ -G Ninja -DLLVM_TARGETS_TO_BUILD="X86"
>     -DBUILD_SHARED_LIBS=ON -DLLVM_ENABLE_CXX1Y=ON
>     -DCMAKE_BUILD_TYPE="Debug"
>
>
>     However then I see the following diagnostic from cmake:
>
>     -- Configuring done
>     CMake Warning (dev) at tools/lldb/source/CMakeLists.txt:297
>     (add_dependencies):
>       Policy CMP0046 is not set: Error on non-existent dependency in
>       add_dependencies.  Run "cmake --help-policy CMP0046" for policy
>     details.
>       Use the cmake_policy command to set the policy and suppress this
>     warning.
>
>       The dependency target
>      
>     "/home/mg11/src/p4play/build/tools/lldb/scripts/LLDBWrapPython.cpp" of
>       target "liblldb" does not exist.
>     This warning is for project developers.  Use -Wno-dev to suppress it.
>
>     -- Generating done
>     -- Build files have been written to: /home/mg11/src/p4play/build
>
>     So should I be alarmed by
>
>     "
>       The dependency target
>      
>     "/home/mg11/src/p4play/build/tools/lldb/scripts/LLDBWrapPython.cpp" of
>       target "liblldb" does not exist.
>     "
>
>     ?
>
>     What does this mean?
>
>     thanks
>     Matt
>
>
>
>
>
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