Created attachment 5658 update intltool Switches from AC_PROG_INTLTOOL to IT_PROG_INTLTOOL. See https://bugzilla.xfce.org/show_bug.cgi?id=8930 for details.
https://git.xfce.org/apps/mousepad/commit/configure.ac.in?id=16f31725b34b01f6d3bb48cd5c61d462e5de8489 Switch from AC_ to IT was applied by that commit. However, what about "intltool_minimum_version" and "no-xml"? Are they needed also?
It had been changed already, I just set the missing minimum version: https://git.xfce.org/apps/mousepad/commit/?id=248988e34726b93942d8cd5ea0d2489d1bca3a95