+if (LYX_EXTERNAL_MYTHES MATCHES "AUTO")
+ # try system library first
+ find_package(MyThesLIB)
+ if (MYTHESLIB_FOUND)
+ set(LYX_EXTERNAL_MYTHES ON CACHE STRING "OFF:= Build 3rdparty mytheslib" FORCE)
+ else()
+ set(LYX_EXTERNAL_MYTHES OFF CACHE STRING "OFF:= Build 3rdparty mytheslib" FORCE)
+ endif()
+endif()
+if (LYX_EXTERNAL_MYTHES MATCHES "ON")
+ find_package(MyThesLIB REQUIRED)
+else()
+ add_subdirectory(3rdparty/mythes)
+endif()
+set(MYTHES_DIR ${MYTHESLIB_INCLUDE_DIR})
+
+if(NOT LYX_EXTERNAL_HUNSPELL)