0.31, vcpkg , x86-windows-static, build error

[dbyoung720]

FAILED: [code=3221225477] src/core/CMakeFiles/openjph.dir/coding/ojph_block_encoder_avx2.cpp.obj
"C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x86\cl.exe" /TP -D_CRT_SECURE_NO_WARNINGS -D_FILE_OFFSET_BITS=64 -ID:\vcpkg\buildtrees\openjph\src\0.31.0-c2a88ef407.clean\src\core\openjph -ID:\vcpkg\buildtrees\openjph\src\0.31.0-c2a88ef407.clean\src\core\shared /nologo /DWIN32 /D_WINDOWS /utf-8 /GR /EHsc /MP /MTd /Z7 /Ob0 /Od /RTC1 -std:c++14 /arch:AVX2 /showIncludes /Fosrc\core\CMakeFiles\openjph.dir\coding\ojph_block_encoder_avx2.cpp.obj /Fdsrc\core\CMakeFiles\openjph.dir\openjph.pdb /FS -c D:\vcpkg\buildtrees\openjph\src\0.31.0-c2a88ef407.clean\src\core\coding\ojph_block_encoder_avx2.cpp
D:\vcpkg\buildtrees\openjph\src\0.31.0-c2a88ef407.clean\src\core\openjph\ojph_arch.h(289): warning C4163: '_BitScanForward64': not available as an intrinsic function
D:\vcpkg\buildtrees\openjph\src\0.31.0-c2a88ef407.clean\src\core\coding\ojph_block_encoder_avx2.cpp(1235) : fatal error C1001: Internal compiler error.
(compiler file 'D:\a_work\1\s\src\vctools\Compiler\Utc\src\p2\main.cpp', line 258)
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ninja: build stopped: subcommand failed.

Generator: build tool execution failed, command was: D:\vcpkg\downloads\tools\ninja-1.13.2-windows\ninja.exe -v -v -j13 install

[aous72]

Hi dbyoung,

• It looks like a compiler crash (not code problem) -- see below for possible things to try.
• The warning that the function _BitScanForward64 is undefined is probably because you are building 32 bit code and there is something wrong with the configuration (preprocessor issue for 32 bit) -- the code builds MinGW32 without this warning. If you want give me more details, and I will try to investigate it.

Cheers,
Aous.

This is chatgpt response to your issue.

You are not getting a normal C++ compile error there. You are hitting a compiler crash in cl.exe.
The important lines are:

• code=3221225477 → cl.exe exited with an access violation / crash.
• fatal error C1001: Internal compiler error → MSVC itself failed while compiling ojph_block_encoder_avx2.cpp.
• The warning about _BitScanForward64 is not the reason the build stopped. It is just a warning.

So the likely cause is one of these:

1. An MSVC bug triggered by that AVX2 source file
2. A specific combination of compiler flags making the compiler choke
3. A toolset/version issue in the Visual Studio compiler you are using

Why this happens here:

• The file is ojph_block_encoder_avx2.cpp, so it is using AVX2 intrinsics / SIMD-heavy code.
• MSVC internal compiler errors are often caused by exactly this kind of low-level, branch-heavy, intrinsic-heavy code.
• The compile is also using debug-ish flags like /Od /RTC1 /Z7, which can sometimes expose compiler bugs.

What to try first:

1. Update MSVC / Visual Studio toolset
   • This is the most common fix for C1001.
2. Try a different build configuration
   • If you are building Debug, try Release.
   • If Release works, it strongly suggests a compiler bug tied to debug codegen.
3. Disable AVX2 for this package
   • If the project or vcpkg port has an option to turn off AVX2/SIMD, use it.
   • As a test, building without the AVX2 file is a good way to confirm the cause.
4. Reduce compiler stress
   • Sometimes changing /RTC1, /Z7, or the optimization/debug combination helps.
   • A different toolset version may also avoid the crash.
5. Try another compiler
   • Clang-cl or a newer MSVC toolset may compile it cleanly.

The short version: this is almost certainly not your code being wrong; it is cl.exe crashing on that AVX2 source file.

[aous72]

It is worth saying that this crash should be reported to Microsoft.