Unrealでのエラー修正 (Synesthesias#191)

* libjpeg-turboビルドのMac OS Version指定

* libcitygml更新

Author: linoal

.idea/cmake.xml

@@ -67,6 +67,7 @@ ExternalProject_Add(
         -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
         -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
         -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}
+        -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15 # ここの数値はUnreal Engineに合わせてください
         ${ExternalProject_CMAKE_ARGS_hidden}
     BUILD_BYPRODUCTS
         <INSTALL_DIR>/lib/${CMAKE_STATIC_LIBRARY_PREFIX}${lib_name}${CMAKE_STATIC_LIBRARY_SUFFIX}