The mtimes of LaTeX files seem not to be set in a sensible manner. It happens that .tex files have mtimes ahead of the .pdf files that were generated from them. This results in tools like latexmk trying to rebuild the latter. $ stat /usr/share/texmf-site/tex/latex/beamer/base/art/beamericonarticle.{tex,pdf} File: ‘/usr/share/texmf-site/tex/latex/beamer/base/art/beamericonarticle.tex’ Size: 3464 Blocks: 8 IO Block: 4096 regular file Device: 1dh/29d Inode: 23822259 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2014-02-04 21:50:12.790467915 +0100 Modify: 2014-02-04 21:50:12.790467915 +0100 Change: 2014-02-04 21:50:38.968712992 +0100 Birth: - File: ‘/usr/share/texmf-site/tex/latex/beamer/base/art/beamericonarticle.pdf’ Size: 2936 Blocks: 8 IO Block: 4096 regular file Device: 1dh/29d Inode: 23822255 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2014-02-04 21:50:11.949492070 +0100 Modify: 2014-02-04 21:50:11.949492070 +0100 Change: 2014-02-04 21:50:38.959713254 +0100 Birth: - This particular file was installed by dev-tex/latex-beamer-3.33. I have not yet noticed the issue for other files or packages. # emerge --info Portage 2.2.8-r1 (default/linux/amd64/13.0/desktop/kde/systemd, gcc-4.8.2, glibc-2.18-r1, 3.13.1-gentoo x86_64) ================================================================= System uname: Linux-3.13.1-gentoo-x86_64-AMD_Athlon-tm-_64_X2_Dual_Core_Processor_5000+-with-gentoo-2.2 KiB Mem: 6107540 total, 271804 free KiB Swap: 7813116 total, 7768324 free Timestamp of tree: Wed, 05 Feb 2014 07:45:01 +0000 ld GNU ld (GNU Binutils) 2.24 app-shells/bash: 4.2_p45-r1 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.6, 3.3.3 dev-util/cmake: 2.8.12.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.12.6, 1.13.4, 1.14.1 sys-devel/binutils: 2.24-r2 sys-devel/gcc: 4.8.2 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2 sys-devel/make: 4.0-r1 sys-kernel/linux-headers: 3.13 (virtual/os-headers) sys-libs/glibc: 2.18-r1 Repositories: gentoo systemd sage-on-gentoo mrueg qt enlightenment x11 local kde ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-pipe -O2 -march=athlon64-sse3" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.1/conf /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-pipe -O2 -march=athlon64-sse3" DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--depclean-lib-check=n --keep-going --nospinner" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildsyspkg compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/ http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/ http://distfiles.gentoo.org" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu" MAKEOPTS="-j3" PKGDIR="/var/cache/portage/packages" PORTAGE_COMPRESS="xz" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/var/cache/portage/gentoo" PORTDIR_OVERLAY="/var/lib/layman/systemd /var/lib/layman/sage-on-gentoo /var/lib/layman/mrueg /var/lib/layman/qt /var/lib/layman/enlightenment /var/lib/layman/x11 /var/cache/portage/local /var/cache/portage/overlays/kde" [...] USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 avahi bash-completion berkdb bluetooth branding bzip2 cairo caps cdda cdr cjk cli cracklib crypt cups cxx dbus declarative dri dts dvb dvd dvdr egl emboss encode exif fam ffmpeg firefox flac fortran gdbm gif gles gles2 gmp gpm gstreamer gtk ibus iconv ipv6 jpeg jpeg2k kde kipi latex lcms ldap libnotify libsecret lz4 lzma lzo mad mmx mmxext mng modules mp3 mp4 mpeg mplayer multilib mysql ncurses networkmanager nls nptl ogg openal opencl openexr opengl openmp opus pam pango pch pcre pdf phonon plasma png policykit ppds pulseaudio qt3support qt4 readline samba sdl semantic-desktop session speex spell sse sse2 sse3 ssl startup-notification subversion svg systemd tcpd theora threads tiff truetype udev udisks unicode upnp upower usb v4l vaapi vdpau vorbis vpx wayland x264 xattr xcb xcomposite xinerama xml xscreensaver xv xvid xz zeroconf zlib" ABI_X86="64" ALSA_CARDS="hda-intel" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="stage words flow sheets" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="btrfs systemd" ELIBC="glibc" ENLIGHTENMENT_MODULES="*" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev joystick" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de en" LIRC_DEVICES="devinput" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby18 ruby20" USERLAND="GNU" VIDEO_CARDS="radeon r600" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
