CMAKE_STAGING_PREFIX

From Get docs
Cmake/docs/3.21/variable/cmake staging prefix


CMAKE_STAGING_PREFIX

This variable may be set to a path to install to when cross-compiling. This can be useful if the path in CMAKE_SYSROOT is read-only, or otherwise should remain pristine.

The CMAKE_STAGING_PREFIX location is also used as a search prefix by the find_* commands. This can be controlled by setting the CMAKE_FIND_NO_INSTALL_PREFIX variable.

If any RPATH/RUNPATH entries passed to the linker contain the CMAKE_STAGING_PREFIX, the matching path fragments are replaced with the CMAKE_INSTALL_PREFIX.

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