[llvm-bugs] [Bug 45587] New: SWIG always runs even in ninja lldb, generation fails with 2.0.10

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45587

            Bug ID: 45587
           Summary: SWIG always runs even in ninja lldb, generation fails
                    with 2.0.10
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: erich.keane at intel.com
                CC: jdevlieghere at apple.com, llvm-bugs at lists.llvm.org

This page claims SWIG version 2 or newer is supported:
https://lldb.llvm.org/resources/build.html and mentions that it is only
necessary to run the tests.

However, even when running "ninja lldb" it seems to try to generate the LLDB
Python wrapper.

I have SWIG 2.0.10: 
bash-4.2$ swig -copyright

SWIG Version 2.0.10
Copyright (c) 1995-1998
University of Utah and the Regents of the University of California
Copyright (c) 1998-2005
University of Chicago
Copyright (c) 2005-2006
Arizona Board of Regents (University of Arizona)


This is the error I get:

FAILED: tools/lldb/bindings/LLDBWrapPython.cpp tools/lldb/bindings/lldb.py
cd /workspaces/llvm-project/build/tools/lldb/bindings && /usr/bin/swig -c++
-features autodoc -I/workspaces/llvm-project/lldb/include
-I/ekeane1/workspaces/llvm-project/lldb/bindings -D__STDC_LIMIT_MACROS
-D__STDC_CONSTANT_MACROS -outdir
/workspaces/llvm-project/build/tools/lldb/bindings -c++ -shadow -python
-threads -o
/workspaces/llvm-project/build/tools/lldb/bindings/LLDBWrapPython.cpp
/workspaces/llvm-project/lldb/bindings/python.swig
/workspaces/llvm-project/lldb/bindings/./python/python-typemaps.swig:496:
Error: Syntax error in input(3).

That file number is:
496   Py_buffer &operator=(const Py_buffer_RAII &) = delete;


If this is a SWIG bug, we should change the documentation to match the versions
that actually build.  Additionally, either we need to make SWIG only necessary
when running the tests, or alter this line: "If you want to run the test suite,
you’ll need to build LLDB with Python scripting support.".

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