(Notice I'm running an unstable system !) # emerge -pv moc [ebuild U ] media-sound/moc-2.3.2 [2.3.0] USE="alsa% curl% mad oss vorbis -debug% -flac -libsamplerate% -musepack% -sndfile% -speex%" 0 kB Results in: >>> Unpacking moc-2.3.2.tar.bz2 to /var/tmp/portage/moc-2.3.2/work * Applying moc-2.3.2-configure.patch ... [ ok ] * Running eautoreconf in '/var/tmp/portage/moc-2.3.2/work/moc-2.3.2' .. [ !! ] * Running autoconf...m4...y --force --automake... * Failed Running autoconf ! * * Include in your bugreport the contents of: * * /var/tmp/portage/moc-2.3.2/temp/autoconf-4298.out !!! ERROR: media-sound/moc-2.3.2 failed. !!! Function autotools_run_tool, Line 179, Exitcode 0 !!! Failed Running autoconf ! !!! If you need support, post the topmost build error, NOT this status message As asked for, contents of autoconf-4298.out: ***** autoconf ***** configure.in:20: error: possibly undefined macro: AC_SUBST If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. configure.in:273: error: possibly undefined macro: AM_PATH_LIBFLAC and my emerge --info: Portage 2.1_pre3-r1 (default-linux/x86/2005.1, gcc-3.4.5, glibc-2.3.5-r3, 2.6.14-suspend2-r7-s050414 i686) ================================================================= System uname: 2.6.14-suspend2-r7-s050414 i686 Intel(R) Pentium(R) M processor 1.86GHz Gentoo Base System version 1.12.0_pre12 ccache version 2.4 [enabled] dev-lang/python: 2.4.2 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1-r1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O3 -march=pentium-m -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-O3 -march=pentium-m -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo ftp://mirror.scarlet-internet.nl/pub/gentoo ftp://mirror.nutsmaas.nl/gentoo/ http://gentoo.mirror.intouch.nl/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage" USE="x86 X acl acpi alsa apache2 audiofile avi bash-completion bashlogger bitmap-fonts browserplugin bzip2 cairo cdb cddb cdparanoia chroot crypt cscope css cups curl dbus dga dri dvd dvdr dvdread eds emboss encode escreen esd ethereal etwin exif expat fam fame fbsplash ffmpeg fltk foomaticdb fortran gcj ggi gif glitz glut gmp gnome gnutls gpm gstreamer gtk gtk2 hal i8x0 idea idn ieee1394 imagemagick imlib irssi java jikes jpeg jpeg2k kde kdeenablefinal kqemu lcms libg++ libwww logrotate lzo mad matroska mikmod mjpeg mmx mmxext mng mono motif mozilla mp3 mpeg musicbrainz ncurses network nptl nsplugin numeric offensive ogg oggvorbis openal openexr opengl oss pam pcre pdflib perl pmu png python qt quicktime rdesktop readline real recode rplay rtc samba sdl sensord silc spell sqlite sse sse2 ssl tcltk tcpd tetex threads tiff timidity truetype truetype-fonts type1-fonts udev usb vim-with-x visualization vorbis wifi win32codecs xine xml xml2 xmms xscreensaver xv xvid xvmc yv12 zlib elibc_glibc kernel_linux userland_GNU" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
Could you test this with 2.4.0 and reopen if it's still present.
I have managed to kill gentoo meanwhile, but when it is back up, I'll test it VeXocide
Emerging moc-2.4.0 went fine.