In file included from u7shp.cc:16:
In file included from ../files/databuf.h:29:
../files/U7obj.h:42:6: error: function definition does not declare parameters
        int index{-1};
            ^
../files/U7obj.h:46:14: error: member initializer 'index' does not name a non-static data member or base class
                : name(n), index(i) {}
                           ^~~~~~~~
../files/U7obj.h:49:25: error: member initializer 'index' does not name a non-static data member or base class
                : name(std::move(n)), index(i) {}
                                      ^~~~~~~~
../files/U7obj.h:52:48: error: no member named 'index' in 'File_spec'
                return cmp < 0 || (cmp == 0 && index < other.index);
                                                       ~~~~~ ^
../files/U7obj.h:76:21: error: expected ';' at end of declaration list
        virtual ~U7object() noexcept = default;
                           ^
                           ;
../files/U7obj.h:116:18: error: expected ';' at end of declaration list
        ~U7multiobject() noexcept final = default;
                        ^
                        ;
In file included from u7shp.cc:16:
In file included from ../files/databuf.h:30:
../files/utils.h:479:15: error: expected expression
        auto two   = [](auto c) {return 1U << c;};
                     ^
../files/utils.h:480:15: error: expected expression
        auto mask  = [&](auto c) {return static_cast<uint8>(std::numeric_limits<uint8>::max() / (two(two(c)) + 1U));};
                     ^
../files/utils.h:481:15: error: expected expression
        auto count = [&](auto x, auto c) {return (x & mask(c)) + ((x >> two(c)) & mask(c));};
                     ^
In file included from u7shp.cc:16:
../files/databuf.h:42:28: error: expected ';' at end of declaration list
        IDataSource(IDataSource&&) noexcept = default;
                                  ^
                                  ;
../files/databuf.h:43:39: error: expected ';' at end of declaration list
        IDataSource& operator=(IDataSource&&) noexcept = default;
                                             ^
                                             ;
../files/databuf.h:44:24: error: expected ';' at end of declaration list
        virtual ~IDataSource() noexcept = default;
                              ^
                              ;
../files/databuf.h:56:19: error: no member named 'make_unique' in namespace 'std'
                auto ptr = std::make_unique<unsigned char[]>(N);
                           ~~~~~^
../files/databuf.h:56:40: error: expected '(' for function-style cast or type construction
                auto ptr = std::make_unique<unsigned char[]>(N);
                                            ~~~~~~~~ ^
../files/databuf.h:208:5: error: delegating constructors are permitted only in C++11
                : IBufferDataView(data_.get(), len) {
                  ^~~~~~~~~~~~~~~
../files/databuf.h:295:2: error: 'auto' not allowed in function return type
        auto steal_data(size_t& len) {
        ^~~~
../files/databuf.h:297:10: error: no viable conversion from returned value of type 'typename remove_reference<unique_ptr<unsigned char []> &>::type' (aka 'std::unique_ptr<unsigned char []>') to function return type 'int'
                return std::move(data);
                       ^~~~~~~~~~~~~~~
../files/databuf.h:308:5: error: call to constructor of 'IBufferDataSource' is ambiguous
                : IBufferDataSource(nullptr, 0) {
                  ^                 ~~~~~~~~~~
../files/databuf.h:289:2: note: candidate constructor
        IBufferDataSource(void *data_, size_t len)
        ^
../files/databuf.h:292:2: note: candidate constructor
        IBufferDataSource(std::unique_ptr<unsigned char[]> data_, size_t len)
        ^
../files/databuf.h:315:5: error: call to constructor of 'IBufferDataSource' is ambiguous
                : IBufferDataSource(nullptr, 0) {
                  ^                 ~~~~~~~~~~
../files/databuf.h:289:2: note: candidate constructor
        IBufferDataSource(void *data_, size_t len)
        ^
../files/databuf.h:292:2: note: candidate constructor
        IBufferDataSource(std::unique_ptr<unsigned char[]> data_, size_t len)
        ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]