+# Input files.
+set(MANUAL_SRC "${CMAKE_CURRENT_SOURCE_DIR}/manual.txt")
+
+# Output files, conversion results.
+set(MANUAL_OUT_HTML "${CMAKE_CURRENT_BINARY_DIR}/manual.html")
+set(MANUAL_OUT_PDF "${CMAKE_CURRENT_BINARY_DIR}/manual.pdf")
+
+# Manual related make(1) targets.