When attempting to compile readahead-list with linux-headers-2.6.8.1-r2 (latest stable linux-headers at the moment) installed, compile fails with this message: In file included from /usr/include/linux/fs.h:12, from filelist-order.cxx:33: /usr/include/linux/wait.h: In function `int waitqueue_active(wait_queue_head_t*)': /usr/include/linux/wait.h:79: error: `list_empty' undeclared (first use this function) After looking through the kernel headers, it looks like what happens is that, for some reason, the __KERNEL__ macro is defined while wait.h is included but not while list.h is included from wait.h. This results in list_empty not being defined in list.h, but being used in wait.h. I suppose the correct behaviour is for the __KERNEL__ macro to not be defined in either of the includes. It really doesn't look like anything is wrong with the readahead-list sources, so this appears to be a bug in linux-headers (probably not just on my system - I haven't done anything weird with linux-headers :-) readahead-list builds fine with linux-headers-2.6.11-r1. Possible solutions: 1) Make readahead-list depend on >=linux-headers-2.6.11-r1 2) investigate in more depth why exactly this happens and fix linux-headers-2.6.8.1-r2 3) #define __LINUX_KEYBOARD_H in filelist-order.cxx before including linux/fs.h (works because list_empty is declared if either __KERNEL__ or __LINUX_KEYBOARD_H is defined - don't ask me why :-) Reproducible: Always Steps to Reproduce: Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r6 i686) ================================================================= System uname: 2.6.11-gentoo-r6 i686 Intel(R) Celeron(R) M processor 1500MHz Gentoo Base System version 1.6.12 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Apr 28 2005, 09:00:34)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.11-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium-m -O2 -fweb -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/namazu/template /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="-march=pentium-m -O2 -fweb -pipe -fomit-frame-pointer -fvisibility-inlines-hidden" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="ftp://mirror.aarnet.edu.au/pub/gentoo/ ftp://planetmirror.com/pub/gentoo/ http://gentoo.osuosl.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" LDFLAGS="-Wl,-O2 -Wl,--enable-new-dtags -Wl,--sort-common" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/local/portage-gentopia" SYNC="rsync://rsync.au.gentoo.org/gentoo-portage" USE="x86 X aac acpi alsa apache2 avi bash-completion berkdb bitmap-fonts cap cdf cdparanoia cdr crypt cups curl directfb doc dvd emboss encode fam fbcon ffmpeg flac foomaticdb fortran gcj gd gdbm gif gnokii gstreamer guile hal hdf hdf5 i8x0 imagemagick imlib java jpeg kde kdeenablefinal kerberos ldap libg++ libwww mad mikmod mmx mmx2 mng mono motif mozsvg mp3 mpeg mpi mysql ncurses netcdf nls nptl objc offensive ogg oggvorbis opengl pam pcmcia pcre pdflib perl pic png ppds qt quicktime rdesktop readline rogue ruby samba scanner sdl slang slp sms snmp spell sqlite sse sse2 ssl subversion svg szip tcltk tcpd tetex tidy tiff truetype truetype-fonts type1-fonts usb v4l v4l2 vorbis wifi win32codecs xatrix xine xml2 xv xvid xvmc zeroconf zlib video_cards_i810 video_cards_i915 userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LINGUAS
readahead-list is NOT in stable, ergo you should NOT be using the stable headers. *** This bug has been marked as a duplicate of 86410 ***
