CMAKE_MESSAGE_CONTEXT_SHOWΒΆ
Added in version 3.17.
Setting this variable to true enables showing a context with each line
logged by the message() command (see CMAKE_MESSAGE_CONTEXT
for how the context itself is specified).
This variable is an alternative to providing the --log-context option
on the cmake command line. Whereas the command line
option will apply only to that one CMake run, setting
CMAKE_MESSAGE_CONTEXT_SHOW to true as a cache variable will ensure that
subsequent CMake runs will continue to show the message context.
Projects should not set CMAKE_MESSAGE_CONTEXT_SHOW. It is intended for
users so that they may control whether or not to include context with messages.