Unable to make on macOS 15.6.1: error in zziplib

[edwardloveall]

I've been trying to build MT today and haven't had success. I've run git submodule update --init and installed automake, libtool, and xmlto via homebrew. mkdir build && cd build && cmake .. works, but when I run make it tries for a while and fails. Here are the last few lines of output:

checking for size_t... yes
checking for ssize_t... yes
checking for off64_t... no
checking for __int64... no
checking whether byte ordering is bigendian... no
checking if pointers to integers require aligned access... ./configure: line 16803: syntax error near unexpected token `;;'
./configure: line 16803: `   ;;'
make[2]: *** [src/submodules/zziplib/src/zziplib-stamp/zziplib-configure] Error 2
make[1]: *** [src/compression/CMakeFiles/zziplib.dir/all] Error 2
make: *** [all] Error 2