fmt/doc/CMakeLists.txt

if (NOT EXISTS ${FORMAT_SOURCE_DIR}/breathe/breathe)
  message(STATUS "Target 'doc' disabled (requires breathe module)")
  return ()
endif ()

foreach (program doxygen sphinx-build)
  find_program(${program} ${program})
  if (NOT ${program})
    message(STATUS "Target 'doc' disabled (requires ${program})")
    return ()
  endif ()
endforeach ()

add_custom_target(doc
  COMMAND ${doxygen}
  COMMAND ${sphinx-build} -b html . html)
Only enable doc target if breathe is available 2015-03-01 16:35:29 -08:00			`if (NOT EXISTS ${FORMAT_SOURCE_DIR}/breathe/breathe)`
			`message(STATUS "Target 'doc' disabled (requires breathe module)")`
			`return ()`
			`endif ()`

Only add the doc target if doxygen and sphinx-build are available 2015-01-30 12:53:52 -08:00			`foreach (program doxygen sphinx-build)`
			`find_program(${program} ${program})`
			`if (NOT ${program})`
			`message(STATUS "Target 'doc' disabled (requires ${program})")`
			`return ()`
			`endif ()`
			`endforeach ()`

Don't track the dependencies of the doc target as Sphinx does it itself 2015-01-30 08:49:48 -08:00			`add_custom_target(doc`
Only add the doc target if doxygen and sphinx-build are available 2015-01-30 12:53:52 -08:00			`COMMAND ${doxygen}`
			`COMMAND ${sphinx-build} -b html . html)`