[lldb-dev] Windows Build Setup w/ Ninja for LLDB

[Todd Fiala]

Hi Deepak,

> If you define both -DLLDB_DISABLE_PYTHON=0 and -D
LLDB_ENABLE_PYTHON_SCRIPTS_SWIG_API_GENERATION=1, it should build properly.

Great, I'll try that out.

I'll also have a look at your patch and at least verify it works over here
without Python.


On Thu, Jul 3, 2014 at 3:04 PM, Deepak Panickal <deepak at codeplay.com> wrote:

>  Hi Todd,
>
> You can build with Python successfully on Windows.
> If you define both -DLLDB_DISABLE_PYTHON=0 and -D
> LLDB_ENABLE_PYTHON_SCRIPTS_SWIG_API_GENERATION=1, it should build properly.
>
> You're right, it's currently broken for building without Python.
> I just checked CMakelists.txt.  An ifdef is missing, so you cannot build
> on Windows without Python for now.
>
> I can't commit the fix now, can fix it when I'm back in office tomorrow or
> you can commit this to CMakeLists.txt.
> --- CMakeLists.txt    Thu Jul  3 22:55:07 2014
> +++ CMakeLists.txt    Thu Jul  3 22:57:26 2014
> @@ -316,7 +316,9 @@
>
>  #add_subdirectory(include)
>  add_subdirectory(docs)
> -add_subdirectory(scripts)
> +if (NOT CMAKE_SYSTEM_NAME MATCHES "Windows" OR NOT LLDB_DISABLE_PYTHON)
> +  add_subdirectory(scripts)
> +endif ()
>  add_subdirectory(source)
>  add_subdirectory(test)
>  add_subdirectory(tools)
>
> Thanks,
> Deepak
>
>
> On 03/07/2014 22:30, Todd Fiala wrote:
>
> Hey all,
>
>  Can somebody tell me what I need to install on a fresh Window 8.1 x86_64
> box to get an lldb windows build working?
>
>  Here is what I've tried so far:
>
>    - VS 2013
>    - ninja - sync from github, build 32-bit version.  (The --x64 build
>    option seems to always bring up an error dialog box in a VS 2013 64-bit
>    window, so I use the x86 32-bit VS command prompt and build it as 32-bit.
>     This might be part of my issue).
>    - Initially I installed python.org's Python 2.7 64-bit.  I later tried
>    the 32-bit after hitting issues in the build process.
>    - cmake 2.8.12.2.  I tried the same with 3.0.0 but backed off to
>    2.8.12.2 to normalize with Zachary's setup and avoid any issues that Reid
>    may have seen with 3.0.0 recently.
>    - Installed gnuwin32.
>
>
>  I sync llvm, llvm/tools/clang, and llvm/tools/lldb to the llvm, clang
> and lldb repos.
>
>  I ensure python is not in my path (i.e. 'where python' does not find
> anything).  I do have gnuwin32/bin, cmake and ninja in my path.
>
>  I run:
> dir
> llvm
>
>  mkdir build
> cd build
> cmake -GNinja ..\llvm
> ninja
>
>  I get an error after about 200 files in from trying to build that says:
> Building lldb python wrapper
> FAILED: cmd.exe /c cd /D D:\lldb\git\build\tools\lldb\scripts && env
> PYTHON_EXEC
> UTABLE=C:/Python27/python.exe
> D:/lldb/git/llvm/tools/lldb/scripts/build-swig-wra
> pper-classes.sh D:/lldb/git/llvm/tools/lldb
> D:/lldb/git/build/tools/lldb/scripts
>  D:/lldb/git/build/tools/lldb/scripts D:/lldb/git/build -m && env
> PYTHON_EXECUTA
> BLE=C:/Python27/python.exe
> D:/lldb/git/llvm/tools/lldb/scripts/finish-swig-wrapp
> er-classes.sh D:/lldb/git/llvm/tools/lldb
> D:/lldb/git/build/tools/lldb/scripts D
> :/lldb/git/build/tools/lldb/scripts D:/lldb/git/build -m
> *env: D:/lldb/git/llvm/tools/lldb/scripts/build-swig-wrapper-classes.sh:
> Exec for*
> *mat error *
>
>  That version is with a 32-bit python.  I get the same error with a
> 64-bit python installed in the same location.
>
>  I have tried disabling python:
>
>  delete the build dir
> mkdir build
> cd build
> cmake -DLLDB_DISABLE_PYTHON=1 -GNinja ..\llvm
>
>  Same error - it still detects the python (not in the path) and still
> uses it.
>
>  I've tried -DDISABLE_PYTHON=1 instead, that one just tells me that
> variable is not used.
>
>  So - I'm missing something basic here.  I do not have cygwin in my path.
>  I used msysgit to get the source.
>
>  Right now I would just settle for being able to disable python, even
> though we need that running at some point.
>
>  Thanks for any help!
>
>  Sincerely,
> Todd Fiala
>
>
>
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>


-- 
-Todd
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