What's the right way to use Find*.cmake modules in cmake/Qt6?

Sauntor

There are many 3rd party Find*.cmake modules in /usr/lib64/cmake/Qt6, i.e., FindWrapBrotli.cmake, FindMySQL.cmake, .etc.

I try using it as following:

find(QT NAMES Qt6 REQUIRED COMPONENTS Core Widgets ...)
# XX: import module
include("${QT_DIR}/FindMySQL.cmake")

add_executable(mydemo ...)
# XX: use variables output by FindMySQL.cmake
target_include_directories(mydemo PUBLIC ${MySQL_INCLUDE_DIR})
target_link_libraries(mydemo PUBLIC ${MySQL_LIBRARY})

In the above example, contains this line:

include("${QT_DIR}/FindMySQL.cmake")

Is there any problem in this use case? Or is there an Offical way/guide that makes the same purpose?

Christian Ehrlicher

@Sauntor simply use

Find_package(MySQL) even though I don't know why you want to use MySQL directly.

See https://cmake.org/cmake/help/latest/command/find_package.html

Sauntor

@Christian-Ehrlicher Those Find*.cmake seems deal cross platform problem already, i.e., deliver my project on windows and linux, if on windows, the Find*.cmake would check vcpkg, on linux, it may find components using pkg-config, so, I do not have to write my own script when build using cmake. That's why I want to use those cmake scripts/modules!

Christian Ehrlicher

@Sauntor So what's the problem - simply use them as I wrote.