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When VS 2015 was first released, its new v140 toolset came with a `link.xml` file that changed the `GenerateDebugInformation` boolean (`false` and `true`) value from earlier toolsets to an enumeration consisting of the possible values `No`, `Debug`, and `DebugFastLink`. We first adapted to this in commit v3.4.2~2^2 (VS: Fix VS 2015 .vcxproj file value for GenerateDebugInformation, 2016-01-08), but that broke older toolsets that still expected the boolean. Then commit v3.6.0-rc1~295^2~1 (VS: Fix VS 2015 .vcxproj debug setting for older toolsets, 2016-02-24) added a hack to fix up the value based on the toolset in use. Several follow-up commits fixed this for more older toolsets because our flag table was at the time based on the generator in use rather than the toolset in use. Since commit v3.8.0-rc1~396^2 (VS: Choose flag map based on the toolset name, 2016-10-17) we use a flag table based on the toolset, so the fixup hack should not be needed. We had to keep it around only due to our default value for GenerateDebugInformation (`false` or `No`) still being based on the generator instead of the toolset. A VS 2015 update was released that changed the v140 toolset `link.xml` file back to using `false` and `true` for the `GenerateDebugInformation` enumeration variants previously known as `No` and `Debug`. In order to know which pair to use, we need to parse the `link.xml` file for the current toolset. Switch back to using `false` and `true` unconditionally in our `GenerateDebugInformation` flag table entries and default value. With that plus the toolset-based flag table, we now get incorrect values for `GenerateDebugInformation` only when using a v140 toolset from an older VS 2015 installation. Detect this case by parsing `link.xml` and add special logic to convert `false` and `true` to `No` and `Debug` to satisfy the older toolset specification. Inspired-by: Ian Hojnicki <nullref@live.com> Fixes: #17020
CMake ***** Introduction ============ CMake is a cross-platform, open-source build system generator. For full documentation visit the `CMake Home Page`_ and the `CMake Documentation Page`_. .. _`CMake Home Page`: https://cmake.org .. _`CMake Documentation Page`: https://cmake.org/cmake/help/documentation.html CMake is maintained and supported by `Kitware`_ and developed in collaboration with a productive community of contributors. .. _`Kitware`: http://www.kitware.com/cmake License ======= CMake is distributed under the OSI-approved BSD 3-clause License. See `Copyright.txt`_ for details. .. _`Copyright.txt`: Copyright.txt Building CMake ============== Supported Platforms ------------------- * Microsoft Windows * Apple macOS * Linux * FreeBSD * OpenBSD * Solaris * HP-UX Other UNIX-like operating systems may work too out of the box, if not it should not be a major problem to port CMake to this platform. Subscribe and post to the `CMake Users List`_ to ask if others have had experience with the platform. .. _`CMake Users List`: https://cmake.org/mailman/listinfo/cmake Building CMake from Scratch --------------------------- UNIX/Mac OSX/MinGW/MSYS/Cygwin ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ You need to have a compiler and a make installed. Run the ``bootstrap`` script you find in the source directory of CMake. You can use the ``--help`` option to see the supported options. You may use the ``--prefix=<install_prefix>`` option to specify a custom installation directory for CMake. You can run the ``bootstrap`` script from within the CMake source directory or any other build directory of your choice. Once this has finished successfully, run ``make`` and ``make install``. In summary:: $ ./bootstrap && make && make install Windows ^^^^^^^ You need to download and install a binary release of CMake in order to build CMake. You can get these releases from the `CMake Download Page`_ . Then proceed with the instructions below. .. _`CMake Download Page`: https://cmake.org/cmake/resources/software.html Building CMake with CMake ------------------------- You can build CMake as any other project with a CMake-based build system: run the installed CMake on the sources of this CMake with your preferred options and generators. Then build it and install it. For instructions how to do this, see documentation on `Running CMake`_. .. _`Running CMake`: https://cmake.org/cmake/help/runningcmake.html Reporting Bugs ============== If you have found a bug: 1. If you have a patch, please read the `CONTRIBUTING.rst`_ document. 2. Otherwise, please join the `CMake Users List`_ and ask about the expected and observed behaviors to determine if it is really a bug. 3. Finally, if the issue is not resolved by the above steps, open an entry in the `CMake Issue Tracker`_. .. _`CMake Issue Tracker`: https://gitlab.kitware.com/cmake/cmake/issues Contributing ============ See `CONTRIBUTING.rst`_ for instructions to contribute. .. _`CONTRIBUTING.rst`: CONTRIBUTING.rst