Fix building with CMake on MinGW-w64.

[MehdiChinoune]

No description provided.

[klemens-morgenstern]

Which symbol is missing?

[MehdiChinoune]

Which symbol is missing?

  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/detail/util.cpp.obj:util.cpp:(.text+0x2a): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/detail/util.cpp.obj:util.cpp:(.text+0x76): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/channel.cpp.obj:channel.cpp:(.text+0x2a): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/channel.cpp.obj:channel.cpp:(.text+0x76): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text+0x46): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text+0xda): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text+0x1587): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text+0x22dd): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text+0x255c): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/main.cpp.obj:main.cpp:(.text$_ZN5boost4asio10io_contextD1Ev[_ZN5boost4asio10io_contextD1Ev]+0xc2): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/this_thread.cpp.obj:this_thread.cp:(.text+0x2a): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/this_thread.cpp.obj:this_thread.cp:(.text+0x76): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/thread.cpp.obj:thread.cpp:(.text+0x46): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/thread.cpp.obj:thread.cpp:(.text+0xca): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/thread.cpp.obj:thread.cpp:(.text+0xeef): undefined reference to `__imp_WSAStartup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/thread.cpp.obj:thread.cpp:(.text+0x1011): undefined reference to `__imp_WSACleanup'
  D:/M/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: libs/cobalt/CMakeFiles/boost_cobalt.dir/src/thread.cpp.obj:thread.cpp:(.text$_ZNSt23_Sp_counted_ptr_inplaceIN5boost6cobalt6detail12thread_stateESaIvELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv[_ZNSt23_Sp_counted_ptr_inplaceIN5boost6cobalt6detail12thread_stateESaIvELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv]+0x30a): undefined reference to `__imp_WSACleanup'

[MehdiChinoune]

ping!

[MehdiChinoune]

Ping!