7-Zip 26.01 (ip7z/7zip) never shipped NSIS plugin sources, so they live in
a separate bundle directory (versions/26.01-bundle/) that mirrors the layout
expected by the shared overlay makefile and by MSBuild.
Bundle contents:
- CPP/7zip/Bundles/Nsis7z/: NSIS plugin wrapper sources (nsis7z.cpp,
pluginapi.cpp, api.h, resource.rc, StdAfx.h, …) and the Windows build
project file (Nsis7z_vs2026.vcxproj, adapted from versions/26.00/).
The vcxproj references the vendor submodule tree via relative paths
(../../../../../26.01/…), keeping the submodule pristine.
- CPP/7zip/UI/NSIS/: NSIS UI adapter sources (Main.cpp, MainAr.cpp,
NSISBreak.cpp, ExtractCallbackConsole.cpp, UserInputUtils2.cpp and
corresponding headers), copied from versions/26.00/.
- CPP/7zip/LzmaDec_gcc.mak: forwarding stub; GNU make resolves relative
`include` paths against the CWD, so when make runs from Bundles/Nsis7z
the upstream Arc_gcc.mak's `include ../../LzmaDec_gcc.mak` lands here.
The stub re-includes the real file via $(VENDOR_7ZIP).
- Symlinks (C, Asm, CPP/7zip/*, CPP/Common, CPP/Windows, …) pointing into
the versions/26.01 submodule. These are required because the vendor
makefile uses CWD-relative source paths (../../../../C/…, ../../Common/…).
tools/linux/setup_26_01_bundle_symlinks.py recreates them if needed.