Bugzilla Bug 197251

# equery belongs libsigsegv.so
[ Searching for file(s) libsigsegv.so in *... ]
dev-lang/gnu-smalltalk-2.3.6 (/usr/lib/libsigsegv.so -> libsigsegv.so.0.0.0)
dev-libs/libsigsegv-2.4 (/usr/lib/libsigsegv.so -> libsigsegv.so.0.0.0)

# equery belongs libsigsegv.so.0.0.0
[ Searching for file(s) libsigsegv.so.0.0.0 in *... ]
dev-lang/gnu-smalltalk-2.3.6 (/usr/lib/libsigsegv.so.0.0.0)
dev-libs/libsigsegv-2.4 (/usr/lib/libsigsegv.so.0.0.0)


All of these:
-rw-r--r-- 1 root root  8882 Oct 26 20:34 libsigsegv.a
-rw-r--r-- 1 root root   811 Oct 26 20:34 libsigsegv.la
lrwxrwxrwx 1 root root    19 Oct 26 20:36 libsigsegv.so -> libsigsegv.so.0.0.0
lrwxrwxrwx 1 root root    19 Oct 26 20:36 libsigsegv.so.0 ->
libsigsegv.so.0.0.0
-rwxr-xr-x 1 root root  9412 Oct 26 20:34 libsigsegv.so.0.0.0

after turning on collision-protect:
>>> Extracting gnu-smalltalk-2.3.6
* checking 493 files for package collisions
 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough
 * information to determine if a real problem exists. Please do NOT file
 * a bug report at http://bugs.gentoo.org unless you report exactly which
 * two packages install the same file(s). Once again, please do NOT file
 * a bug report unless you have completely understood the above message.
 * 
 * package dev-lang/gnu-smalltalk-2.3.6 NOT merged
 * 
 * Detected file collision(s):
 * 
 *      /usr/lib/libsigsegv.so.0.0.0
 *      /usr/lib/libsigsegv.a
 *      /usr/lib/libsigsegv.la
 *      /usr/lib/libsigsegv.so
 *      /usr/lib/libsigsegv.so.0
 * 
 * Searching all installed packages for file collisions...
 * 
 * Press Ctrl-C to Stop
 * 
 * dev-libs/libsigsegv-2.4
 *      /usr/lib/libsigsegv.so.0.0.0
 *      /usr/lib/libsigsegv.a
 *      /usr/lib/libsigsegv.la
 *      /usr/lib/libsigsegv.so
 *      /usr/lib/libsigsegv.so.0




emerge --info
Portage 2.1.3.16 (default-linux/x86/2006.1/desktop, gcc-4.2.2, glibc-2.6.1-r0,
2.6.23.1 i686)
=================================================================
System uname: 2.6.23.1 i686 AMD Athlon(tm) Processor
Timestamp of tree: Sat, 27 Oct 2007 00:30:09 +0000
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
app-shells/bash:     3.2_p17-r1
dev-java/java-config: 1.3.7, 2.1.2-r1
dev-lang/python:     2.5.1-r2
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.10-r5
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.23
ACCEPT_KEYWORDS="x86 ~x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=i686 -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf
/etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/
/etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo
/etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-march=i686 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="collision-protect distlocks metadata-transfer sandbox sfperms strict
unmerge-orphans userfetch userpriv usersandbox"
GENTOO_MIRRORS="http://mirror.datapipe.net/gentoo http://194.117.143.69
http://85.25.128.62"
MAKEOPTS="-j1"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage /usr/local/ag-portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow X Xaw3d a52 aac aalib acpi alsa apache2 arts audiofile avahi berkdb
bitmap-fonts blas bzip2 cairo cdr cjk cli cracklib crypt cups curl dbus dga dri
dts dv dvb dvd dvdr eds emboss encode esd exif expat f77 faad fam fbcon ffmpeg
fftw firefox flac fortran gcj gd gdbm gif ginac glut gmp gnome gnustep gnutls
gphoto2 gpm gstreamer gtk gtk2 gtkhtml hal iconv idn imagemagick imlib isdnlog
jack java jpeg lapack lcms leim libcaca libnotify libsamplerate lirc live mad
matroska midi mikmod mmap mmx mng mono mozilla mp3 mpeg mudflap mysql nas
ncurses nls nptl nptlonly offensive ogg openal opengl openmp oss pam pcre pdf
perl plotutils png ppds pppd pulseaudio python qhull qt3 quicktime radeon
readline reflection rtc samba scanner sdk sdl session slang sndfile speex spell
spl sqlite sse ssl startup-notification svg tcl tcltk tcpd tetex theora threads
tiff tk truetype truetype-fonts type1-fonts unicode usb v4l v4l2 vcd vorbis
win32codecs wmf wxwindows x264 x86 xinerama xml xorg xosd xv xvid zlib"
ALSA_CARDS="emu10k1 via82xx usb-audio" ALSA_PCM_PLUGINS="adpcm alaw asym copy
dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear
meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc"
INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz
cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text"
LIRC_DEVICES="realmagic" USERLAND="GNU" VIDEO_CARDS="i810 radeon mach64 vesa
vga fbdev v4l"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

gnu-smalltalk seems to offer libsigsegv.

I just fixed it (blocking the library) for version 3.0.

Thanks for reporting.