cmake: add manpages

CMakeLists.txt

@@ -12,6 +12,7 @@ include(cmake/deps.cmake)
 include(cmake/config.cmake)
 add_subdirectory(src)
 include(cmake/data.cmake)
+include(cmake/docs.cmake)
 
 include(cmake/package.cmake)
 include(CPack)

cmake/docs.cmake

@@ -0,0 +1,28 @@
+find_program(RONN ronn)
+
+option(ESPEAK_BUILD_MANPAGES "Build manpages" ${RONN})
+
+if (RONN AND ESPEAK_BUILD_MANPAGES)
+    add_custom_command(
+        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/espeak-ng.1
+        COMMAND ${RONN} --roff -o ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src/espeak-ng.1.ronn
+    )
+    add_custom_command(
+        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/speak-ng.1
+        COMMAND ${RONN} --roff -o ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src/speak-ng.1.ronn
+    )
+
+    add_custom_target(
+        docs ALL
+        DEPENDS
+            ${CMAKE_CURRENT_BINARY_DIR}/espeak-ng.1
+            ${CMAKE_CURRENT_BINARY_DIR}/speak-ng.1
+    )
+
+    install(
+        FILES
+            ${CMAKE_CURRENT_BINARY_DIR}/espeak-ng.1
+            ${CMAKE_CURRENT_BINARY_DIR}/speak-ng.1
+        DESTINATION share/man/man1
+    )
+endif()