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📝 document FetchContent

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Niels Lohmann
2022-01-30 13:05:18 +01:00
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doc/mkdocs/docs/integration/cmake.md
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@ -90,7 +90,7 @@ to the following.
### FetchContent
Since CMake v3.11, [FetchContent](https://cmake.org/cmake/help/v3.11/module/FetchContent.html) can be used to
automatically download the repository as a dependency at configure type.
automatically download a release as a dependency at configure type.
!!! example
@ -101,8 +101,7 @@ automatically download the repository as a dependency at configure type.
include(FetchContent)
FetchContent_Declare(json
GIT_REPOSITORY https://github.com/nlohmann/json
GIT_TAG v3.10.5
URL https://github.com/nlohmann/json/releases/download/v3.10.5/json.tar.xz
)
FetchContent_GetProperties(json)
@ -117,8 +116,18 @@ automatically download the repository as a dependency at configure type.
!!! Note
The repository <https://github.com/nlohmann/json> download size is quite large. You might want to depend on a
smaller repository. For instance, you might want to replace the URL in the example by
It is recommended to use the URL approach described above which is supported as of version 3.10.0. It is also
possible to pass the Git repository like
```cmake
FetchContent_Declare(json
GIT_REPOSITORY https://github.com/nlohmann/json
GIT_TAG v3.10.5
)
```
However, the repository <https://github.com/nlohmann/json> download size is quite large. You might want to depend on
a smaller repository. For instance, you might want to replace the URL in the example by
<https://github.com/ArthurSonzogni/nlohmann_json_cmake_fetchcontent>.
## CMake Options