In file included from C:\Dev\src\mongo-cxx-driver\src\mongocxx\test\collection_mocked.cpp:15:0:
C:/Dev/src/mongo-cxx-driver/src/third_party/catch/include/catch.hpp: In instantiation of 'static bool Catch::Internal::Evaluator<T1, T2, (Catch::Internal::Operator)0u>::evaluate(const T1&, const T2&) [with T1 = const _mongoc_read_prefs_t*; T2 = long long int]':
C:/Dev/src/mongo-cxx-driver/src/third_party/catch/include/catch.hpp:868:47:   required from 'bool Catch::Internal::compare(const T1&, const T2&) [with Catch::Internal::Operator Op = (Catch::Internal::Operator)0u; T1 = const _mongoc_read_prefs_t*; T2 = long long int]'
C:/Dev/src/mongo-cxx-driver/src/third_party/catch/include/catch.hpp:1287:50:   required from 'Catch::ResultBuilder& Catch::ExpressionLhs<T>::captureExpression(const RhsT&) [with Catch::Internal::Operator Op = (Catch::Internal::Operator)0u; RhsT = long long int; T = const _mongoc_read_prefs_t* const&]'
C:/Dev/src/mongo-cxx-driver/src/third_party/catch/include/catch.hpp:1230:54:   required from 'Catch::ResultBuilder& Catch::ExpressionLhs<T>::operator==(const RhsT&) [with RhsT = long long int; T = const _mongoc_read_prefs_t* const&]'
C:\Dev\src\mongo-cxx-driver\src\mongocxx\test\collection_mocked.cpp:454:13:   required from here
C:/Dev/src/mongo-cxx-driver/src/third_party/catch/include/catch.hpp:823:34: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
             return opCast( lhs ) ==  opCast( rhs );
                    ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
src\mongocxx\test\CMakeFiles\test_driver.dir\build.make:187: recipe for target 'src/mongocxx/test/CMakeFiles/test_driver.dir/collection_mocked.cpp.obj' failed
mingw32-make[3]: *** [src/mongocxx/test/CMakeFiles/test_driver.dir/collection_mocked.cpp.obj] Error 1
CMakeFiles\Makefile2:780: recipe for target 'src/mongocxx/test/CMakeFiles/test_driver.dir/all' failed
mingw32-make[2]: *** [src/mongocxx/test/CMakeFiles/test_driver.dir/all] Error 2
CMakeFiles\Makefile2:792: recipe for target 'src/mongocxx/test/CMakeFiles/test_driver.dir/rule' failed
mingw32-make[1]: *** [src/mongocxx/test/CMakeFiles/test_driver.dir/rule] Error 2
Makefile:380: recipe for target 'test_driver' failed
mingw32-make: *** [test_driver] Error 2