During emerge libusb, the configure script spits the following error message: *** Gentoo sanity check failed! *** *** libtool.m4 and ltmain.sh have a version mismatch! *** *** (libtool.m4 = 1.5.16, ltmain.sh = 1.4.2) *** Please run: libtoolize --copy --force Reproducible: Always Steps to Reproduce: 1.emerge libtool 2. 3. Actual Results: emerge info: Portage 2.0.51.19 (default-linux/ppc/2005.0, gcc-3.4.3, glibc-2.3.4.20041102-r1, 2.6.10-gentoo-r6 ppc) ================================================================= System uname: 2.6.10-gentoo-r6 ppc 7455, altivec supported Gentoo Base System version 1.4.16 Python: dev-lang/python-2.3.5 [2.3.5 (#1, May 5 2005, 00:18:29)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.8.5-r3, 1.5, 1.7.9-r1, 1.6.3, 1.4_p6, 1.9.5 sys-devel/binutils: 2.15.90.0.3-r4 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.8.1-r4 ACCEPT_KEYWORDS="ppc" AUTOCLEAN="yes" CFLAGS="-O2 -mcpu=7400 -pipe -maltivec -mabi=altivec" CHOST="powerpc-unknown-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -mcpu=7400 -pipe -maltivec -mabi=altivec" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="ppc X aac aalib alsa altivec apache2 arts atlas audiofile berkdb bitmap-fonts bzlib cdparanoia cdr cjk crypt cups curl doc dv dvd dvdr dvdread emacs encode fam flac foomaticdb fortran gcj gdbm gif gmp gtk gtk2 imagemagick imap java javascript jpeg kde kdexdeltas libcaca libg++ libwww maildir motif mozilla mp3 mpeg ncurses nls nvidia ogg oggvorbis opengl oss pam pdflib perl png postgres ppds python qt quicktime readline samba sdl sndfile spell ssl symlink sysfs sysvipc tetex tiff truetype truetype-fonts type1-fonts unicode usb vorbis xine xml xml2 xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY
please try 0.1.10a for now. recent changes in libtool has made 0.1.8 quite unstable.
libusb-0.1.10a has been marked stable which should fix this problem. Feel free to reopen if you have further issues.