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Commit733d670

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Switch "cl /?" to "cl /help" in MSVC scripts for platform detection
"cl /?" produces a different output if run on a real or a virtual drive(this can be set with a simple subst command), causing an error in theMSVC scripts if building on a virtual drive because the platform to usecannot be detected."cl /help", on the contrary, produces a consistent output if used on areal or virtual drive. Changing to "/help" allows the compilation towork with a virtual drive as long as the top of the code repository ispart of the drive, without impacting the build on real drives.Reported-by: Robert GrangeAuthor: Juan José Santamaría FlechaDiscussion:https://postgr.es/m/16825-c4f104bcebc67034@postgresql.org
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‎src/tools/msvc/Solution.pm‎

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Original file line numberDiff line numberDiff line change
@@ -62,7 +62,7 @@ sub DeterminePlatform
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if ($^Oeq"MSWin32")
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{
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# Examine CL help output to determine if we are in 32 or 64-bit mode.
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my$output =`cl /? 2>&1`;
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my$output =`cl /help 2>&1`;
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$? >> 8 == 0ordie"cl command not found";
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$self->{platform} =
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($output =~/^\/favor:<.+AMD64/m) ?'x64' :'Win32';

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