cmake: symlink Content instead of copying (#1162)

CMakeLists.txt

@@ -86,19 +86,24 @@ elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
         $<$<COMPILE_LANGUAGE:CXX>:-Werror=delete-non-virtual-dtor>
         -Werror
 
-		# some GCC versions have bugs triggering this warning
-	    -Wno-stringop-overflow
-		# this is just silly
-		-Wno-format-zero-length
+        # some GCC versions have bugs triggering this warning
+        -Wno-stringop-overflow
+        # this is just silly
+        -Wno-format-zero-length
 
-		#uncomment this to stop the compilation at the first error
+        #uncomment this to stop the compilation at the first error
         # -Wfatal-errors
     )
 endif()
 
 
 add_subdirectory(WickedEngine)
-add_subdirectory(Content)
+add_custom_target(Content
+    COMMAND ${CMAKE_COMMAND} -E rm -rf ${CMAKE_CURRENT_BINARY_DIR}/Content
+    COMMAND ${CMAKE_COMMAND} -E create_symlink ${WICKED_ROOT_DIR}/Content ${CMAKE_CURRENT_BINARY_DIR}/Content
+    COMMENT "Symlinking Content directory"
+    VERBATIM
+)
 
 if (WICKED_EDITOR)
     add_subdirectory(Editor)

Content/CMakeLists.txt

@@ -1,15 +0,0 @@
-cmake_minimum_required(VERSION 3.19)
-
-if(CMAKE_VERSION VERSION_LESS "3.26.0")
-  set(COPY_DIR_CMD copy_directory)
-else()
-  set(COPY_DIR_CMD copy_directory_if_different)
-endif()
-
-add_custom_target(Content
-    COMMAND ${CMAKE_COMMAND} -E ${COPY_DIR_CMD}
-        ${WICKED_ROOT_DIR}/Content
-        ${CMAKE_CURRENT_BINARY_DIR}
-    COMMENT "Copying Content"
-    VERBATIM
-)