CMAKE_FIND_DEBUG_MODE

Print extra find call information for the following commands to standard error:

Output is designed for human consumption and not for parsing. Enabling this variable is equivalent to using cmake --debug-find with the added ability to enable debugging for a subset of find calls.

set(CMAKE_FIND_DEBUG_MODE TRUE)
find_program(...)
set(CMAKE_FIND_DEBUG_MODE FALSE)

Default is unset.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.17/variable/CMAKE_FIND_DEBUG_MODE.html