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cmake, README: clearify the usage of '-' in feature names

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It's not immediately obvious that you need to use
all underscores for the feature name, so add a
line that explaines it.

Change-Id: I508eaf909c808fb0a93442f6e71428c18559b965
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
This commit is contained in:
Richard Moe Gustavsen 2020-08-12 14:05:45 +02:00
parent bc0f5f5d1a
commit 1d4457da13
1 changed files with 2 additions and 1 deletions
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cmake/README.md
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@ -110,7 +110,8 @@ the source directory next to them using the helper script
``path_to_qtbase_source/util/cmake/configurejson2cmake.py``. They are checked into the repository.
If the feature in configure.json has the name "dlopen", you can specify whether to enable or disable that
feature in CMake with a -D flag on the CMake command line. So for example -DFEATURE_dlopen=ON or
-DFEATURE_sql_mysql=OFF. At the moment, if you change a FEATURE flag's value, you have to remove the
-DFEATURE_sql_mysql=OFF. Remember to convert all '-' to '_' in the feature name.
At the moment, if you change a FEATURE flag's value, you have to remove the
CMakeCache.txt file and reconfigure with CMake. And even then you might stumble on some issues when
reusing an existing build, because of an automoc bug in upstream CMake.