Does not build as shared library #1845
Description
Describe the bug
Drogon does not build shared library because of using thread_local in lib/src/Utilities.cc.
To Reproduce
Build drogon with -DBUILD_SHARED_LIBS:BOOL=ON
Expected behavior
Successful build.
Desktop (please complete the following information):
- OS: Windows 11
- MSYS2 CLANG64
Additional context
Errors produced:
xxx/drogon/lib/src/Utilities.cc:1235:46: error: 'hash' cannot be thread local when declared 'dllexport'
1235 | thread_local trantor::utils::Hash256 hash;
| ^
xxx/drogon/lib/src/Utilities.cc:1236:29: error: 'i' cannot be thread local when declared 'dllexport'
1236 | thread_local size_t i = 0;