• requires a vcpkg-cmake-wrapper.cmake to correctly set debug & release versions in EXPAT_LIBRARIES due to how cmakes FindEXPAT module works.
• library name changed from 2.2.7 from expat.lib to libexpat.lib in >2.2.9. This will break future work on make based ports expecting the name expat and thus leads to a lot of pain and patching. upstream need to get their stuff together here and shouldn't change the library name but use versioned dll's instead to fix the observed problem which was according to the cmakelists.txt:

# Avoid colliding with Expat.dll of Perl's XML::Parser::Expat
if(WIN32 AND NOT MINGW)
    set(_EXPAT_TARGET libexpat)
else()
    set(_EXPAT_TARGET expat)
endif()

the above changes makes supporting normal windows and mingw builds unnecessarily complex......

• furthermore expat linkage via cmake is currently inconsistent due to Inconsistent CMake imported target between msvc and others compilers libexpat/libexpat#407