Today I upgraded MySql (from 4.0.22 to 4.0.23-r1) with emerge -uD world and later when I restarted my computer Apache2 failed to load. This was because mod_php was looking for the libmysqlclient.so.12 which didn't exist any more. PHP also shows the same error message: php: error while loading shared libraries: libmysqlclient.so.12: cannot open shared object file: No such file or directory This can be solved by re-emerging php and mod_php but shouldn't Portage automatically recompile them? Reproducible: Always Steps to Reproduce: 1. 2. 3. emerge info Portage 2.0.51-r3 (default-linux/x86/2004.2, gcc-3.3.5, glibc-2.3.4.20040808-r1 , 2.6.10-gentoo-r4 i686) ================================================================= System uname: 2.6.10-gentoo-r4 i686 AMD Athlon(tm) XP 2600+ Gentoo Base System version 1.4.16 ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.15.92.0.2-r1 Headers: sys-kernel/linux26-headers-2.6.8.1-r2 Libtools: sys-devel/libtool-1.5.2-r7 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer -ffast-math -fprefetch- loop-arrays" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3. 2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer -ffast-math -fprefetc h-loop-arrays" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ ftp://ftp. belnet.be/mirror/rsync.gentoo.org/gentoo/ http://gentoo.mirror.sdv.fr ftp://ftp .rhnet.is/pub/gentoo/ http://ftp.heanet.ie/pub/gentoo/ ftp://ftp.heanet.ie/pub/ gentoo/ ftp://ftp.easynet.nl/mirror/gentoo/ http://ftp.snt.utwente.nl/pub/os/li nux/gentoo ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo http://vlaai.snt.ipv6.u twente.nl/pub/os/linux/gentoo/ ftp://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gen too/ http://gentoo.tiscali.nl/gentoo/ ftp://ftp.tiscali.nl/pub/mirror/gentoo ft p://mirror.scarlet-internet.nl/pub/gentoo ftp://mirror.nutsmaas.nl/gentoo/ http ://mir.zyrianes.net/gentoo/ ftp://mir.zyrianes.net/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.uk.gentoo.org/gentoo-portage" USE="x86 X alsa apache2 apm arts avi berkdb bitmap-fonts bonobo cdr crypt cups dba doc dvd dvdread encode esd f77 fam flac font-server foomaticdb fortran gd g dbm gif gnome gpm gtk gtk2 gtkhtml imagemagick imlib ipv6 java jpeg kde libg++ libwww mad mikmod motif mpeg mysql ncurses nls nptl oav oggvorbis opengl oss pa m pdflib perl png ppds python qt quicktime readline samba scanner sdl session s lang spell sqlite ssl svga tcltk tcpd tiff truetype truetype-fonts type1-fonts usb xml xml2 xmms xv zlib linguas_en_GB"
*** This bug has been marked as a duplicate of 78678 ***
