1 // Copyright (C) 2019 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // Copyright 2014 Google Inc. All Rights Reserved. 16 // Author: csyoung@google.com (C. Sean Young) 17 18 #ifndef ICING_LEGACY_CORE_ICING_COMPAT_H_ 19 #define ICING_LEGACY_CORE_ICING_COMPAT_H_ 20 21 #ifdef __APPLE__ 22 // iOS does not allow dlopen/dlclose/dlsym. 23 #define ICING_ALLOW_DYNAMIC_EXTENSIONS 0 24 // Xcode 6.3/LLVM 3.6 removed std::hash specialization for std::basic_string, 25 // so we need the versions from util/hash/hash.h. The implementations in 26 // util/hash/* have added an AVOID_TRADE_SECRET_CODE macro that's defined on 27 // Apple (and some other client targets) to prevent leaking proprietary hash 28 // code. 29 #else 30 #define ICING_ALLOW_DYNAMIC_EXTENSIONS 1 31 #endif // __APPLE__ 32 33 #endif // ICING_LEGACY_CORE_ICING_COMPAT_H_ 34