* Require Git for build tests only if installed GTest is not found
Cloning via Git is not the only path to obtain Google Test framework. In Linux,
using a system package manager is the preferred way, and gtest can be installed
through APK, APT, DNF, pacman, or many other. Now we make Git mandatory after
checking GTest existence.
See also: https://github.com/microsoft/GSL/pull/961#discussion_r548959056
* Support standalone tests
The patch makes possible to run auto-tests against globally installed GSL,
ignoring local headers. To do this, run CMake in the tests/ folder.
cmake -B build -S tests -DGSL_CXX_STANDARD=14
This feature should not break existing build recipes.
Co-authored-by: Nicholas Guriev <nicholas@guriev.su>
Nicholas GurievandNicholas Guriev
d9fa328f89