Build failure with gcc 13.0.0
gcc 13.0.0 pre-release has come to Fedora rawhide, and with it a build failure for vtk 9.2.5:
[ 39%] Building CXX object IO/Image/CMakeFiles/IOImage.dir/vtkSEPReader.cxx.o
cd /builddir/build/BUILD/VTK-9.2.5/build/IO/Image && /usr/bin/g++ -DIOImage_EXPORTS -DVTK_IN_VTK -Dkiss_fft_scalar=double -I/builddir/build/BUILD/VTK-9.2.5/build/IO/Image -I/builddir/build/BUILD/VTK-9.2.5/IO/Image -I/builddir/build/BUILD/VTK-9.2.5/build/Common/Core -I/builddir/build/BUILD/VTK-9.2.5/Common/Core -I/builddir/build/BUILD/VTK-9.2.5/build/Common/ExecutionModel -I/builddir/build/BUILD/VTK-9.2.5/Common/ExecutionModel -I/builddir/build/BUILD/VTK-9.2.5/build/Common/DataModel -I/builddir/build/BUILD/VTK-9.2.5/Common/DataModel -I/builddir/build/BUILD/VTK-9.2.5/build/Common/Math -I/builddir/build/BUILD/VTK-9.2.5/Common/Math -I/builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/kissfft/vtkkissfft -I/builddir/build/BUILD/VTK-9.2.5/ThirdParty/kissfft/vtkkissfft -I/builddir/build/BUILD/VTK-9.2.5/build/Common/Transforms -I/builddir/build/BUILD/VTK-9.2.5/Common/Transforms -I/builddir/build/BUILD/VTK-9.2.5/build/Imaging/Core -I/builddir/build/BUILD/VTK-9.2.5/Imaging/Core -I/builddir/build/BUILD/VTK-9.2.5/build/Common/Misc -I/builddir/build/BUILD/VTK-9.2.5/Common/Misc -I/builddir/build/BUILD/VTK-9.2.5/build/Common/System -I/builddir/build/BUILD/VTK-9.2.5/Common/System -I/builddir/build/BUILD/VTK-9.2.5/build/Utilities/DICOMParser -I/builddir/build/BUILD/VTK-9.2.5/Utilities/DICOMParser -I/builddir/build/BUILD/VTK-9.2.5/build/Utilities/MetaIO/vtkmetaio -I/builddir/build/BUILD/VTK-9.2.5/Utilities/MetaIO/vtkmetaio -isystem /builddir/build/BUILD/VTK-9.2.5/build/Utilities/KWIML -isystem /builddir/build/BUILD/VTK-9.2.5/Utilities/KWIML -isystem /builddir/build/BUILD/VTK-9.2.5/build/Utilities/KWSys -isystem /builddir/build/BUILD/VTK-9.2.5/Utilities/KWSys -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/kissfft -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/kissfft -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/jpeg -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/jpeg -isystem /builddir/build/BUILD/VTK-9.2.5/build/Utilities/MetaIO -isystem /builddir/build/BUILD/VTK-9.2.5/Utilities/MetaIO -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/png -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/png -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/pugixml -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/pugixml -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/tiff -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/tiff -isystem /builddir/build/BUILD/VTK-9.2.5/build/ThirdParty/zlib -isystem /builddir/build/BUILD/VTK-9.2.5/ThirdParty/zlib -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -D_UNICODE -DHAVE_UINTPTR_T -g -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11 -MD -MT IO/Image/CMakeFiles/IOImage.dir/vtkSEPReader.cxx.o -MF CMakeFiles/IOImage.dir/vtkSEPReader.cxx.o.d -o CMakeFiles/IOImage.dir/vtkSEPReader.cxx.o -c /builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.cxx
In file included from /builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.cxx:16:
/builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:33:6: warning: elaborated-type-specifier for a scoped enum must not use the 'class' keyword
33 | enum class EndiannessType : std::uint8_t
| ~~~~ ^~~~~
| -----
/builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:33:12: error: use of enum 'EndiannessType' without previous declaration
33 | enum class EndiannessType : std::uint8_t
| ^~~~~~~~~~~~~~
/builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:33:27: error: expected unqualified-id before ':' token
33 | enum class EndiannessType : std::uint8_t
| ^
/builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:103:19: error: 'int32_t' is not a member of 'std'; did you mean 'int32_t'?
103 | std::array<std::int32_t, 6> ComputeExtent() const;
| ^~~~~~~
In file included from /usr/include/sys/types.h:155,
from /usr/include/stdlib.h:395,
from /usr/include/c++/13/cstdlib:79,
from /usr/include/c++/13/ext/string_conversions.h:43,
from /usr/include/c++/13/bits/basic_string.h:4072,
from /usr/include/c++/13/string:54,
from /usr/include/c++/13/bits/locale_classes.h:40,
from /usr/include/c++/13/bits/ios_base.h:41,
from /usr/include/c++/13/ios:44,
from /usr/include/c++/13/istream:40,
from /usr/include/c++/13/fstream:40,
from /builddir/build/BUILD/VTK-9.2.5/Common/Core/vtkIOStream.h:29,
from /builddir/build/BUILD/VTK-9.2.5/Common/Core/vtkSystemIncludes.h:39,
from /builddir/build/BUILD/VTK-9.2.5/Common/Core/vtkIndent.h:28,
from /builddir/build/BUILD/VTK-9.2.5/Common/Core/vtkObjectBase.h:53,
from /builddir/build/BUILD/VTK-9.2.5/Common/Core/vtkObject.h:45,
from /builddir/build/BUILD/VTK-9.2.5/Common/ExecutionModel/vtkExtentTranslator.h:29,
from /builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:24:
/usr/include/bits/stdint-intn.h:26:19: note: 'int32_t' declared here
26 | typedef __int32_t int32_t;
| ^~~~~~~
/builddir/build/BUILD/VTK-9.2.5/IO/Image/vtkSEPReader.h:103:19: error: 'int32_t' is not a member of 'std'; did you mean 'int32_t'?
103 | std::array<std::int32_t, 6> ComputeExtent() const;
| ^~~~~~~
/usr/include/bits/stdint-intn.h:26:19: note: 'int32_t' declared here
26 | typedef __int32_t int32_t;
| ^~~~~~~
Not sure if this is an issue in gcc that will be fixed, or something in VTK that needs fixing. Comments welcome.