IN_TRY_COMPILE

From Get docs
Cmake/docs/3.21/prop gbl/in try compile


IN_TRY_COMPILE

Read-only property that is true during a try-compile configuration.

True when building a project inside a try_compile() or try_run() command.

© 2000–2021 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.21/prop_gbl/IN_TRY_COMPILE.html