Summary

• Upgrades bundled LZMA SDK from version 9.22 (2011) to 25.01 (2025)
• Updates SevenZip module to use the new SDK API
• Adds missing file open support for non-Windows platforms (bug fix)

Changes

LZMA SDK (dependencies/7zip)

• Major version upgrade spanning 14 years of improvements
• 7zIn.c renamed to 7zArcIn.c
• Types.h renamed to 7zTypes.h
• New files added: Compiler.h, Precomp.h, 7zWindows.h, and others
• Delta.c now required for decoding (added to CMakeLists.txt)

SevenZip Module (SevenZip/src/Archive.cpp)

• Updated to use new CLookToRead2 API (replaces CLookToRead)
• Updated stream access from .s to .vt members
• Updated file info access to use accessor macros (SzArEx_IsDir, SzArEx_GetFileSize, SzBitWithVals_Check)
• Added InFile_Open call for non-Windows platforms (was missing)

Sources

• LZMA SDK official download: https://www.7-zip.org/sdk.html
• LZMA SDK 25.01: https://www.7-zip.org/a/lzma2501.7z

Testing

• SevenZip module compiles successfully
• un7zip sample application tested:
  • Archive listing works correctly
  • Archive extraction works correctly (tested with LZMA SDK 25.01 archive itself)