[postgis-tickets] [PostGIS] #5178: msys mingw64 Github Action is failing

[PostGIS]

#5178: msys mingw64 Github Action is failing
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 Reporter:  robe       |      Owner:  robe
     Type:  defect     |     Status:  new
 Priority:  medium     |  Milestone:  Website Management, Bots
Component:  buildbots  |    Version:  master
 Keywords:             |
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 The msys GHA was taken out a couple of days ago because it started
 failing.

 It seems to be perhaps a change upstream (perhaps a g++ change), since
 only changes to the regular ci.yml happened before it started failing.

 Here is first failure:
 https://github.com/postgis/postgis/runs/7062499864?check_suite_focus=true

 {{{
 make[2]: Entering directory '/d/a/postgis/postgis/deps/flatgeobuf'
 gcc -std=c++11 -x c++ -I../../liblwgeom -I../../liblwgeom -I./include
 -I/mingw64/include -ID:/a/_temp/msys64/mingw64/include
 -ID:/a/_temp/msys64/mingw64/include/libxml2 -I/mingw64/include
 -ID:/a/_temp/msys64/mingw64/include
 -ID:/a/_temp/msys64/mingw64/include/json-c
 -ID:/a/_temp/msys64/mingw64/include  -DNDEBUG    -DDLL_EXPORT -DPIC -c -o
 flatgeobuf_c.o flatgeobuf_c.cpp
 In file included from ./include/flatbuffers/base.h:237,
                  from ./include/flatbuffers/array.h:20,
                  from ./include/flatbuffers/flatbuffers.h:22,
                  from feature_generated.h:7,
                  from flatgeobuf_c.cpp:26:
 D:/a/_temp/msys64/mingw64/include/absl/strings/string_view.h:52:26: error:
 'string_view' in namespace 'std' does not name a type
    52 | using string_view = std::string_view;
       |                          ^~~~~~~~~~~
 D:/a/_temp/msys64/mingw64/include/absl/strings/string_view.h:52:21: note:
 'std::string_view' is only available from C++17 onwards
    52 | using string_view = std::string_view;
       |                     ^~~
 D:/a/_temp/msys64/mingw64/include/absl/strings/string_view.h:692:8: error:
 'string_view' does not name a type
   692 | inline string_view ClippedSubstr(string_view s, size_t pos,
       |        ^~~~~~~~~~~
 D:/a/_temp/msys64/mingw64/include/absl/strings/string_view.h:703:11:
 error: 'string_view' does not name a type
   703 | constexpr string_view NullSafeStringView(const char* p) {
       |           ^~~~~~~~~~~
 ./include/flatbuffers/base.h:239:23: error: 'string_view' in namespace
 'absl' does not name a type
   239 |         typedef absl::string_view string_view;
       |                       ^~~~~~~~~~~
 In file included from ./include/flatbuffers/flatbuffer_builder.h:30,
                  from ./include/flatbuffers/flatbuffers.h:27:
 ./include/flatbuffers/string.h:31:16: error: 'string_view' in namespace
 'flatbuffers' does not name a type
    31 |   flatbuffers::string_view string_view() const {
       |                ^~~~~~~~~~~
 ./include/flatbuffers/string.h:57:28: error: 'string_view' in namespace
 'flatbuffers' does not name a type
    57 | static inline flatbuffers::string_view GetStringView(const String
 *str) {
       |                            ^~~~~~~~~~~
 ./include/flatbuffers/flatbuffer_builder.h:495:44: error:
 'flatbuffers::string_view' has not been declared
   495 |   Offset<String> CreateString(flatbuffers::string_view str) {
       |                                            ^~~~~~~~~~~
 ./include/flatbuffers/flatbuffer_builder.h:550:56: error: 'string_view' in
 namespace 'flatbuffers' does not name a type
   550 |   Offset<String> CreateSharedString(const flatbuffers::string_view
 str) {
       |                                                        ^~~~~~~~~~~
 ./include/flatbuffers/flatbuffer_builder.h: In member function
 'flatbuffers::Offset<flatbuffers::String>
 flatbuffers::FlatBufferBuilder::CreateString(int)':
 ./include/flatbuffers/flatbuffer_builder.h:496:29: error: request for
 member 'data' in 'str', which is of non-class type 'int'
   496 |     return CreateString(str.data(), str.size());
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5178>
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