Removing libtool files is about to become the default in makepkg.conf. These packages all have libtool files. Check if they are genuinely needed and if so add options=('libtool') to the PKGBUILD.

If the libtool files need removed, either build with options=('!libtool) or wait for the new devtools release to build them. I will remove all options=('!libtool) from PKGBUILDs once a devtools release is made.