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doc: more explicit about the behavior of URI
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@SGSSGene
SGSSGene committed Dec 23, 2024
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Expand Up @@ -75,6 +75,8 @@ CPMAddPackage(
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`URI` automatically sets `EXCLUDE_FROM_ALL YES` and `SYSTEM YES`. If this is not desired, `EXCLUDE_FROM_ALL NO` and `SYSTEM NO` have to be set.

The origin may be specified by a `GIT_REPOSITORY`, but other sources, such as direct URLs, are [also supported](https://cmake.org/cmake/help/v3.11/module/ExternalProject.html#external-project-definition).
If `GIT_TAG` hasn't been explicitly specified it defaults to `v(VERSION)`, a common convention for git projects.
On the other hand, if `VERSION` hasn't been explicitly specified, CPM can automatically identify the version from the git tag in some common cases.
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