CMake copy if original file changed

Question

In CMake I have a folder containing predefined Gettext catalogs, which at build time I copy to a folder and then modify them. But the problem is that every time I run the ta

Answer 1

Another option is to use configure_file with COPYONLY argument.

configure_file(input_file output_file COPYONLY)

This won't perform any variable substitution and will copy "input_file" when you run make. But it triggers a cmake run and this may be undesirable because of time consumption.