licensing, initial documentation initiative

CMakeLists.txt

@@ -8,6 +8,7 @@ cmake_policy(SET CMP0079 NEW)
 
 option(BUILD_STATIC "Builds library as static library" OFF)
 option(BUILD_TESTS "Builds tests" OFF)
+option(BUILD_DOC "Builds documentation" OFF)
 
 include(GNUInstallDirs)
 include(CMakePackageConfigHelpers)
@@ -44,6 +45,14 @@ set_property(TARGET ${PROJECT_NAME} APPEND PROPERTY
 )
 
 add_subdirectory(src)
+if (BUILD_DOC)
+  find_package(Doxygen)
+  if (DOXYGEN_FOUND)
+    add_subdirectory(doc)
+  else()
+    message("Was trying to build documentation, but Doxygen was not found, skipping documentation")
+  endif()
+endif()
 
 if (BUILD_TESTS)
   add_subdirectory(test)