Rather than using the obsolete LOCATION
property, prefer using generator expressions:
add_custom_command(TARGET mylibrary POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:mylibrary> ${targetfile}
)
You could also just generate the exe in the target directory directly by setting the target property RUNTIME_OUTPUT_DIRECTORY
instead of copying it. This has per-configuration options (e.g. RUNTIME_OUTPUT_DIRECTORY_DEBUG
).
set_target_properties(mylibrary PROPERTIES
RUNTIME_OUTPUT_DIRECTORY_DEBUG <debug path>
RUNTIME_OUTPUT_DIRECTORY_RELEASE <release path>
)
For further details run:
cmake --help-property "RUNTIME_OUTPUT_DIRECTORY"
cmake --help-property "RUNTIME_OUTPUT_DIRECTORY_<CONFIG>"
Also, you should be able to use forward slashes throughout for path separators, even on Windows.