Angband 4.2.4 Windows SDL2 Build Issue

[docrobot]

Not even sure if this is the right place for it, but here goes. I'm attempting a MSYS2 compile of Angband (version 4.2.4, from the source tarball) for Windows using SDL2, as per the steps in the compiling instructions guide, and it appears to be failing during linking with...

$ make -f Makefile.msys2.sdl2 -j9
      LINK angband
D:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lbrotlidec-static: No such file or directory
D:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lbrotlicommon-static: No such file or directory
collect2.exe: error: ld returned 1 exit status
make: *** [Makefile.msys2.sdl2:109: angband] Error 1

The output of a 'pacman -Ss brotli' yields...

$ pacman -Ss brotli
mingw32/mingw-w64-i686-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
mingw32/mingw-w64-i686-brotli-testdata 1.0.9-4
    Brotli compression library (mingw-w64)
mingw32/mingw-w64-i686-python-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
mingw64/mingw-w64-x86_64-brotli 1.0.9-4 [installed]
    Brotli compression library (mingw-w64)
mingw64/mingw-w64-x86_64-brotli-testdata 1.0.9-4
    Brotli compression library (mingw-w64)
mingw64/mingw-w64-x86_64-python-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
ucrt64/mingw-w64-ucrt-x86_64-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
ucrt64/mingw-w64-ucrt-x86_64-brotli-testdata 1.0.9-4
    Brotli compression library (mingw-w64)
ucrt64/mingw-w64-ucrt-x86_64-python-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
clang64/mingw-w64-clang-x86_64-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
clang64/mingw-w64-clang-x86_64-brotli-testdata 1.0.9-4
    Brotli compression library (mingw-w64)
clang64/mingw-w64-clang-x86_64-python-brotli 1.0.9-4
    Brotli compression library (mingw-w64)
msys/brotli 1.0.9-2 [installed]
    Brotli compression library
msys/brotli-devel 1.0.9-2
    Brotli compression library
msys/brotli-testdata 1.0.9-2
    Brotli compression library
msys/python-brotli 1.0.9-2
    Brotli compression library

Am I overlooking something really simple here? Thanks to anyone who takes the time to drop in.