Doesn't work with Ninja build system

[ilyash]

Source of the problem:

• add_custom_target(man ALL WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc COMMAND make man DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/doc/*.1.md)
• install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/ DESTINATION man/man1 FILES_MATCHING PATTERN "*.1")

Reproduce:

cd build
cmake .. -G Ninja
cmake --build .

Error message:

ninja: error: '../doc/*.1.md', needed by 'CMakeFiles/man', missing and no known rule to make it