#

# Build the doxygen

#

include(FindDoxygen)

if(NOT DOXYGEN_DOT_FOUND)

message(WARNING "Graphviz doesn't seem to be installed. Doxygen will not be able to generate graphs. Consider installing this package.")

endif(NOT DOXYGEN_DOT_FOUND)

if (DOXYGEN_FOUND)

# Configure the doxygen config file with current settings

set("DOC_OUTPUT_DIR" "${CMAKE_CURRENT_BINARY_DIR}")

configure_file(doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/documentation-config.doxygen @ONLY)

option(DOC_INSTALL "Install the documentation when calling \"make install\"" OFF)

set(DOC_TARGET_ALL "") # ensure that we build the doc if doc must be installed

if(DOC_INSTALL)

set(DOC_TARGET_ALL "ALL")

endif(DOC_INSTALL)

# target doc

add_custom_target(doc ${DOC_TARGET_ALL}

${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/documentation-config.doxygen

WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}

COMMENT "Generating API documentation using doxygen for ${PROJECT_NAME}

\n Output will be available in ${DOC_OUTPUT_DIR}/html" VERBATIM)

# installation

if(DOC_INSTALL)

message(STATUS "Documentation will be installed")

install(DIRECTORY ${DOC_OUTPUT_DIR}/html DESTINATION share/doc/${PROJECT_NAME} COMPONENT doc)

endif(DOC_INSTALL)

endif (DOXYGEN_FOUND)