vars/build.vars:native_packages_deps: adds libsasl2 v2.1.26 (via Redfoxmoon.)
vars/build.vars:native_packages_etc: adds isync v1.3.0 (via Redfoxmoon.)
vars/build.vars:libsasl2:${PKG_CONFIGURE_ARGS_EXTRA}: force correct config.cache location.
patches/libsasl2-2.1.26.local.patch: via Redfoxmoon.