How it works

This recipe highlighted some new options to the ExternalProject_Add command:

  1. GIT_REPOSITORY: This can be used to specify the URL of the repository containing the sources of our dependency. CMake can also use other version control systems, such as CVS (CVS_REPOSITORY), SVN (SVN_REPOSITORY), or Mercurial (HG_REPOSITORY).
  1. GIT_TAG: By default, CMake will check out the default branch of the given repository. However, it is preferable to depend on a well-defined version that is known to be stable. This can be specified with this option, which can accept any identifier recognized by Git as "version" information, such as a Git commit SHA, a Git tag, or just a branch name. Similar options are also available for the other version control ...

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