Added PS Vita support

src/dawntools/tools/CMakeLists.txt

@@ -8,7 +8,6 @@ add_subdirectory(tilesetgen)
 add_subdirectory(truetypegen)
 add_subdirectory(uigen)
 add_subdirectory(languagegen)
-add_subdirectory(audiogen)
 add_subdirectory(generatedlanguages)
 add_subdirectory(sceneitemcomponentregister)
 
@@ -89,14 +88,18 @@ function(tool_language target in)
 endfunction()
 
 # Audio Tool
-function(tool_audio target in)
-  add_custom_target(${target}
-    COMMAND audiogen --input="${DAWN_ASSETS_SOURCE_DIR}/${in}" --output="${DAWN_ASSETS_BUILD_DIR}/${target}"
-    COMMENT "Generating audio ${target} from ${in}"
-    DEPENDS audiogen
-  )
-  add_dependencies(${DAWN_TARGET_NAME} ${target})
-endfunction()
+if(DAWN_TARGET_OPENAL)
+  add_subdirectory(audiogen)
+
+  function(tool_audio target in)
+    add_custom_target(${target}
+      COMMAND audiogen --input="${DAWN_ASSETS_SOURCE_DIR}/${in}" --output="${DAWN_ASSETS_BUILD_DIR}/${target}"
+      COMMENT "Generating audio ${target} from ${in}"
+      DEPENDS audiogen
+    )
+    add_dependencies(${DAWN_TARGET_NAME} ${target})
+  endfunction()
+endif()
 
 # Scene Item Component Tool
 function(tool_scenecomponent clazz hfile)