# Look for an executable called sphinx-build find_program(SPHINX_EXECUTABLE NAMES sphinx-build DOC "Path to sphinx-build executable") if(SPHINX_EXECUTABLE STREQUAL "SPHINX_EXECUTABLE-NOTFOUND") message(FATAL_ERROR "sphinx-build not found.") endif() include(FindPackageHandleStandardArgs) # Handle standard arguments to find_package like REQUIRED and QUIET find_package_handle_standard_args( Sphinx "Failed to find sphinx-build executable" SPHINX_EXECUTABLE)