ZBar v0.23.91 libraries for Windows
From MSYS2 package i686 (32 bit)
https://packages.msys2.org/package/mingw-w64-i686-zbar?repo=mingw32
From MSYS2 package x86_64 (64 bit)
https://packages.msys2.org/package/mingw-w64-clang-x86_64-zbar?repo=clang64