configure failed like: *** [Gentoo] sanity check failed! *** *** libtool.m4 and ltmain.sh have a version mismatch! *** *** (libtool.m4 = 1.5.23b, ltmain.sh = "1.5.22 Debian 1.5.22-4") *** Reproducible: Always doing what it suggested, i.e. running libtoolize --copy --force in workdir allowed me to complete ebuild ... compile install qmerge clean with no further errors.
Works just fine here; post your emerge --info.