VS2026 build failure on Windows 11
Posted by Anonymous on Wed 19th Aug 2026 13:19
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# VS2026 build failure on Windows 11
  C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC\14.51.36231\bin\HostX86\arm64\CL.exe /c /I..\..\include /I..\.. /IARM64\Release\ /Zi /nologo /W4 /WX- /diagnostics:column /O2 /Oi /Oy- /GL /D WIN32 /D _C
  RT_STDIO_ISO_WIDE_SPECIFIERS=1 /D _MEMCPY_INLINE_=1 /D PopulationCount64=1 /D UNICODE /D _UNICODE /D NDEBUG /D _CONSOLE /D _ARM64_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE=1 /D _UNICODE /D UNICODE /Gm- /EHsc /MD /GS /Gy /fp:
  precise /Zc:wchar_t /Zc:forScope /Zc:inline /std:c17 /Fo"ARM64\Release\\" /Fd"ARM64\Release\vc145.pdb" /external:W4 /Gd /TC /analyze- /FC /errorReport:queue /wd5105 ..\..\mount\enum.c ..\..\mount\mount.c ..\..\mount\optio
  ns.c ..\..\mount\urlparser1.c
  enum.c
C:\Program Files (x86)\Windows Kits\10\Include\10.0.28000.0\km\rxpooltg.h(64,1): error C2220: the following warning is treated as an error [C:\cygwin64\home\roland.mainz\tmp\buildtest\ms-nfs41-client\build.vc19\nfs41_driver
\nfs41_driver.vcxproj]
  (compiling source file '../../sys/copysup.c')

C:\Program Files (x86)\Windows Kits\10\Include\10.0.28000.0\km\rxpooltg.h(64,1): warning C5298: ignoring spurious 'U+1a' character in source [C:\cygwin64\home\roland.mainz\tmp\buildtest\ms-nfs41-client\build.vc19\nfs41_driv
er\nfs41_driver.vcxproj]
  (compiling source file '../../sys/copysup.c')
      C:\Program Files (x86)\Windows Kits\10\Include\10.0.28000.0\km\rxpooltg.h(64,1):
      to simplify migration, consider the temporary use of /Wv:18 flag with the version of the compiler with which you used to build without warnings