Error during ninja check: no type named string_view in namespace absl

[cymtrick]

Hi Team,

I trying to run the ninja check and facing this error. I am using this cmake in build dir

cmake .. -GNinja -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Debug -DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON

and facing the error with string_view .

                    ~~~~~~^
/root/kubefuzzthesis/libs/libprotobuf-mutator/build/external.protobuf/include/absl/time/civil_time.h:509:34: error: no type named 'string_view' in namespace 'absl'
bool ParseLenientCivilTime(absl::string_view s, CivilSecond* c);
                           ~~~~~~^
/root/kubefuzzthesis/libs/libprotobuf-mutator/build/external.protobuf/include/absl/time/civil_time.h:510:34: error: no type named 'string_view' in namespace 'absl'
bool ParseLenientCivilTime(absl::string_view s, CivilMinute* c);
                           ~~~~~~^
/root/kubefuzzthesis/libs/libprotobuf-mutator/build/external.protobuf/include/absl/time/civil_time.h:511:34: error: no type named 'string_view' in namespace 'absl'
bool ParseLenientCivilTime(absl::string_view s, CivilHour* c);
                           ~~~~~~^
/root/kubefuzzthesis/libs/libprotobuf-mutator/build/external.protobuf/include/absl/time/civil_time.h:512:34: error: no type named 'string_view' in namespace 'absl'
bool ParseLenientCivilTime(absl::string_view s, CivilDay* c);
                           ~~~~~~^
/root/kubefuzzthesis/libs/libprotobuf-mutator/build/external.protobuf/include/absl/time/civil_time.h:513:34: error: no type named 'string_view' in namespace 'absl'
bool ParseLenientCivilTime(absl::string_view s, CivilMonth* c);

Thanks
prashanth

[jagvirdehal]

Also having the same issue. It gets resolved with the download protobuf cmake argument, but it then causes more issues down the line with undefined references