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document the module update mechanism

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Radovan Bast
2015-06-04 12:03:05 +02:00
parent b9fa44260f
commit 457c8a64b2
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doc/updating-modules.rst
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@ -8,11 +8,23 @@ To update CMake modules you need to run the ``boostrap.py`` script::
cd cmake
python bootstrap.py ..
The CMake modules are not fetched or updated at configure time
or build time.
The CMake modules are not fetched or updated at configure time or build time.
In other words, if you never re-run ``boostrap.py`` script and never modify the
CMake module files, then the CMake modules will remain forever frozen.
How to pin CMake modules to a certain version
---------------------------------------------
Write me ...
Sometimes you may want to avoid using the latest version of a CMake module and
rather fetch an older version with the hash ``abcd123``. To achieve this, instead
of::
[coverage]
source: https://github.com/scisoft/autocmake/raw/master/modules/UseCodeCoverage.cmake
pin the version to ``abcd123`` (you do not need to specify the full Git hash, a unique
beginning will do)::
[coverage]
source: https://github.com/scisoft/autocmake/raw/abcd123/modules/UseCodeCoverage.cmake