gcc -c -O4 -march=pentium4 -mcpu=pentium4 -pipe -ffast-math -fomit-frame-pointer -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I. -I.. -I/usr/include/freetype2 -I/usr/include/SDL -D_REENTRANT -I/usr/X11R6/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/directfb -DMPG12PLAY -o vo_fbdev.o vo_fbdev.c In file included from vo_fbdev.c:21: /usr/include/linux/fb.h:345: error: syntax error before "atomic_t" make[1]: *** [vo_fbdev.o] Error 1 make[1]: Leaving directory `/var/tmp/portage/mplayer-1.0_pre3/work/MPlayer-1.0pre3/libvo' make: *** [libvo/libvo.a] Error 2 !!! ERROR: media-video/mplayer-1.0_pre3 failed. !!! Function src_compile, Line 307, Exitcode 2 !!! Failed to build MPlayer! Reproducible: Always Steps to Reproduce: 1. 2. 3. emerge info Portage 2.0.50_pre16 (default-x86-1.4, gcc-3.3.2, glibc-2.3.3_pre20040117-r0, 2.6.1-gentoo-r1) sys-kernel/linux-headers-2.6.0 ================================================================= System uname: 2.6.1-gentoo-r1 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz Gentoo Base System version 1.4.3.12 distcc 2.12.1 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.57a,sys-devel/autoconf-2.59 Automake: sys-devel/automake-1.7.8 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O2 -pipe" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /opt/tomcat/conf /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3/share/config /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/bind /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=pentium3 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X Xaw3d aalib accessibility acl alsa apache2 apm arts artswrappersuid atlas avi berkdb bidi bonobo cap caps cdr chroot crypt cscope cups curl dga directfb doc dv dvb dvd encode esd evo faad fbcon firebird flac flash foomaticdb freetds gb gd gdbm ggi gif gnome gnomedb gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile idea imagemagick imap imlib informix innodb ipv6 java javascript jbig jpeg junit kde kerberos lcms ldap libg++ libgda libwww mad maildir matroska mbox mcal mdb menu mikmod motif mozilla mozinterfaceinfo moznocompose moznoirc moznomail mozsvg mozxmlterm mpeg mpi mysql nas ncurses nhc98 nls nptl objc oci8 odbc oggvorbis opengl oss pam pcmcia pda pdflib perl pg-hier pg-intdatetime pg-vacuumdelay pic png pnp postgres ppds python qt quicktime readline rplay ruby ruby18 samba sasl sdl skey slang slp snmp sox spell sqlite sse ssl stroke svga tcltk tcpd tetex tiff truetype trusted ucs2 unicode usb wmf x86 xface xinerama xml xml2 xmms xv zlib"
could you please try `emerge sync` and then re-emerge linux-headers-2.6.0 and see if the problem is fixed ?
Fix confirmed, please sync your tree and remerge your headers and this should go away. Thanks.