more tweak

Author: ab9rf

tools/CMakeLists.txt

@@ -13,7 +13,9 @@ if(BUILD_XMLDUMP)
     FetchContent_MakeAvailable(fmt)
     set(FMTLIB fmt)
     add_definitions("-DUSE_FMTLIB")
-    add_subdirectory(${dfhack_SOURCE_DIR}/depends/lua)
+    if(NOT TARGET lua)
+        add_subdirectory(${dfhack_SOURCE_DIR}/depends/lua ${CMAKE_BINARY_DIR}/depends/lua)
+    endif()
 
     file(GLOB XML_FILES ../df.*.xml)
     set(TYPE_DUMP_GENERATOR "${CMAKE_CURRENT_SOURCE_DIR}/generate-type-dump.py")