Emerge alsa-driver-0.9.7 fails. On a Dual P3 box, so I tried MAKEOPTS="-j2" and "-j1" with the same results. Reproducible: Always Steps to Reproduce: 1. emerge -u alsa-driver 2. 3. Actual Results: ../alsa-kernel/core/sound_oss.c:27:2: #error "Enable the OSS soundcore multiplexer (CONFIG_SOUND) in the kernel." make[2]: *** [fastdep] Error 1 make[2]: Leaving directory `/var/tmp/portage/alsa-driver-0.9.7/work/alsa-driver-0.9.7/acore' make[1]: *** [dep] Error 1 make[1]: Leaving directory `/var/tmp/portage/alsa-driver-0.9.7/work/alsa-driver-0.9.7' make: *** [include/sndversions.h] Error 2 !!! ERROR: media-sound/alsa-driver-0.9.7 failed. !!! Function src_compile, Line 66, Exitcode 2 !!! Parallel Make Failed Expected Results: emerge normally emerge info Portage 2.0.49-r7 (default-x86-1.4, gcc-3.3.1, glibc-2.3.2-r1, 2.4.22) ================================================================= System uname: 2.4.22 i686 Pentium III (Coppermine) ccache version 2.2 [enabled] ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O3 -pipe" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=pentium3 -O3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="sandbox autoaddcvs ccache" GENTOO_MIRRORS="ftp://ftp.gtlib.cc.gatech.edu/pub/gentoo http://www.ibiblio.org/gentoo ftp://ftp.ussg.iu.edu/pub/linux/gentoo http://adelie.polymtl.ca/ http://www.mirror.ac.uk/sites/www.ibiblio.org/gentoo/" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="x86 oss apm avi encode foomaticdb gpm libg++ libwww mad mikmod nls png spell xv zlib gtkhtml gdbm berkdb slang readline bonobo svga tcpd pam esd imlib oggvorbis gtk motif -3dnow X kde -gnome acpi alsa apache2 arts crypt cups directfb gif icc java jikes jpeg kerberos mmx mpeg mozilla moznomail moznocompose ncurses opengl pdflib perl python qt quicktime samba sdl sse ssl tiff truetype usb xml xml2 xmms offensive"
You need to enable CONFIG_SOUND in the kernel configuration (Sound->Sound card support).
wrong kernel config