Process completed with exit code 2.

Process completed with exit code 2.

In file included from ./inet/clock/model/OscillatorBasedClock.h:13, from ./inet/clock/model/SettableClock.h:11, from ./inet/applications/clock/SimpleClockSynchronizer.h:14, from inet/applications/clock/SimpleClockSynchronizer.cc:8: ./inet/common/Units.h: In function 'bool inet::units::isDivisibleBy8(T)': ./inet/common/Units.h:1384:8: warning: 'if constexpr' only available with '-std=c++17' or '-std=gnu++17' 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^~~~~~~~~ ./inet/common/Units.h:1384:24: error: 'is_integral_v' is not a member of 'std'; did you mean 'is_integral'? 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^~~~~~~~~~~~~ | is_integral ./inet/common/Units.h:1384:39: error: expected primary-expression before '>' token 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^ ./inet/common/Units.h:1384:40: error: expected primary-expression before ')' token 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^ ./inet/common/Units.h:1385:13: warning: 'if constexpr' only available with '-std=c++17' or '-std=gnu++17' 1385 | else if constexpr (std::is_floating_point_v<T>) return std::fmod(value, 8.0) == 0.0; | ^~~~~~~~~ ./inet/common/Units.h:1385:29: error: 'is_floating_point_v' is not a member of 'std'; did you mean 'is_floating_point'? 1385 | else if constexpr (std::is_floating_point_v<T>) return std::fmod(value, 8.0) == 0.0; | ^~~~~~~~~~~~~~~~~~~ | is_floating_point ./inet/common/Units.h:1385:50: error: expected primary-expression before '>' token 1385 | else if constexpr (std::is_floating_point_v<T>) return std::fmod(value, 8.0) == 0.0; | ^ ./inet/common/Units.h:1385:51: error: expected primary-expression before ')' token 1385 | else if constexpr (std::is_floating_point_v<T>) return std::fmod(value, 8.0) == 0.0; | ^ make[1]: *** [Makefile:1894: ../out/x86_64-w64-mingw32-gcc-debug/src/inet/applications/clock/SimpleClockSynchronizer.o] Error 1 make[1]: *** Waiting for unfinished jobs.... In file included from ./inet/common/MemoryInputStream.h:11, from ./inet/common/packet/serializer/ChunkSerializer.h:11, from ./inet/common/packet/serializer/FieldsChunkSerializer.h:11, from ./inet/applications/base/ApplicationPacketSerializer.h:11, from inet/applications/base/ApplicationPacketSerializer.cc:8: ./inet/common/Units.h: In function 'bool inet::units::isDivisibleBy8(T)': ./inet/common/Units.h:1384:8: warning: 'if constexpr' only available with '-std=c++17' or '-std=gnu++17' 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^~~~~~~~~ ./inet/common/Units.h:1384:24: error: 'is_integral_v' is not a member of 'std'; did you mean 'is_integral'? 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^~~~~~~~~~~~~ | is_integral ./inet/common/Units.h:1384:39: error: expected primary-expression before '>' token 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^ ./inet/common/Units.h:1384:40: error: expected primary-expression before ')' token 1384 | if constexpr (std::is_integral_v<T>) return value % 8 == 0; | ^ ./inet/common/Units.h:1385:13: warning: 'if constexpr' only available with '-std=c++17' or '-std=gnu++17' 1385 | else if constexpr (std::is_floating_point_v<T>) return std::fmod(value, 8.0) == 0.0; | ^~~~~~~~~ ./inet/common/Units.h:1385:29: error: 'is_floating_point_v' is not a member of 'std'; di