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Diffstat (limited to 'Help/command/find_package.rst')
| -rw-r--r-- | Help/command/find_package.rst | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Help/command/find_package.rst b/Help/command/find_package.rst index c44fe86..2cb1e5f 100644 --- a/Help/command/find_package.rst +++ b/Help/command/find_package.rst @@ -170,11 +170,21 @@ is acceptable the following variables are set: ``<package>_VERSION_COUNT`` number of version components, 0 to 4 -and the corresponding package configuration file is loaded. When -multiple package configuration files are available whose version files +and the corresponding package configuration file is loaded. +When multiple package configuration files are available whose version files claim compatibility with the version requested it is unspecified which -one is chosen. No attempt is made to choose a highest or closest -version number. +one is chosen: unless the variable :variable:`CMAKE_FIND_PACKAGE_SORT_ORDER` +is set no attempt is made to choose a highest or closest version number. + +To control the order in which ``find_package`` checks for compatibiliy use +the two variables :variable:`CMAKE_FIND_PACKAGE_SORT_ORDER` and +:variable:`CMAKE_FIND_PACKAGE_SORT_DIRECTION`. +For instance in order to select the highest version one can set:: + + SET(CMAKE_FIND_PACKAGE_SORT_ORDER NATURAL) + SET(CMAKE_FIND_PACKAGE_SORT_DIRECTION DEC) + +before calling ``find_package``. Config mode provides an elaborate interface and search procedure. Much of the interface is provided for completeness and for use |