Bugzilla Bug 146070

This stabilized package doesn't compile with gcc-4.1.1:
i686-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/kde/3.5/include
-I/usr/qt/3/include -I.  -I/usr/kde/3.5/include  -DQT_THREAD_SUPPORT 
-D_REENTRANT  -Wnon-virtual-dtor -Wno-long-long -Wundef -ansi
-D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wconversion -Wchar-subscripts
-Wall -W -Wpointer-arith -Wwrite-strings -DNDEBUG -DNO_DEBUG -O2
-march=pentium4 -mtune=pentium4 -O3 -pipe -fomit-frame-pointer -funroll-loops
-Wformat-security -Wmissing-format-attribute -fno-exceptions -fno-check-new
-fno-common  -c -o klwlayout.o `test -f 'klwlayout.cpp' || echo
'./'`klwlayout.cpp
/usr/kde/3.5/include/kresources/manager.h:59: warning: 'class
KRES::ManagerNotifier' has virtual functions but non-virtual destructor
i686-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/kde/3.5/include
-I/usr/qt/3/include -I.  -I/usr/kde/3.5/include  -DQT_THREAD_SUPPORT 
-D_REENTRANT  -Wnon-virtual-dtor -Wno-long-long -Wundef -ansi
-D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wconversion -Wchar-subscripts
-Wall -W -Wpointer-arith -Wwrite-strings -DNDEBUG -DNO_DEBUG -O2
-march=pentium4 -mtune=pentium4 -O3 -pipe -fomit-frame-pointer -funroll-loops
-Wformat-security -Wmissing-format-attribute -fno-exceptions -fno-check-new
-fno-common  -c -o klwpersonalsettingsform.o `test -f
'klwpersonalsettingsform.cpp' || echo './'`klwpersonalsettingsform.cpp
/usr/kde/3.5/include/kresources/manager.h:59: warning: 'class
KRES::ManagerNotifier' has virtual functions but non-virtual destructor
klwletter.cpp: In member function 'virtual void klwLetter::letterMakeDVI()':
klwletter.cpp:231: error: unknown escape sequence '\}'
make[2]: *** [klwletter.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory
`/var/tmp/portage/kletterwizard-0.9.7/work/kletterwizard-0.9.7/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory
`/var/tmp/portage/kletterwizard-0.9.7/work/kletterwizard-0.9.7'
make: *** [all] Error 2

#  emerge --info
Portage 2.1.1_pre3-r1 (default-linux/x86/2006.0, gcc-4.1.1/vanilla,
glibc-2.4-r3, 2.6.17-rc6 i686)
=================================================================
System uname: 2.6.17-rc6 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 2.20GHz
Gentoo Base System version 1.12.1
ccache version 2.4 [enabled]
app-admin/eselect-compiler: 2.0.0_rc2-r1
dev-lang/python:     2.3.5-r2, 2.4.3-r1
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     2.4-r1
dev-util/confcache:  0.4.2-r1
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.60
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.17
sys-devel/gcc-config: 2.0.0_rc1
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r5
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=pentium4 -mtune=pentium4 -O3 -pipe -fomit-frame-pointer
-funroll-loops"
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/X11/xkb /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/"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/eselect/compiler
/etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=pentium4 -mtune=pentium4 -O3 -pipe -fomit-frame-pointer
-funroll-loops"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distcc distlocks fixpackages
metadata-transfer sandbox sfperms strict"
GENTOO_MIRRORS="http://darkstar.ist.utl.pt/gentoo/
ftp://darkstar.ist.utl.pt/pub/gentoo/ ftp://ftp.rnl.ist.utl.pt/pub/gentoo/
ftp://mirrors1.netvisao.pt/gentoo http://distfiles.gentoo.org
http://www.ibiblio.org/pub/Linux/distributions/gentoo"
LINGUAS="pt"
MAKEOPTS="-j2"
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'"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="x86 X Xaw3d aac aalib acpi ada aimextras akode alsa amarok amazon apache2
artworkextra asf asterisk auctex audacious avi backtrace bash-completion berkdb
big-tables bitmap-fonts blas blender-game bluetooth boo bzip2 c++ cairo
calendar caps ccache cddb cdparanoia cdr cdrom chipcard cli clisp cmucl crypt
cscope css csv cups cursors cvs cvsgraph dbus dlloader dri dvd dvi ecsteve
ecsteve2 eds effects emacs emboss encode enscript epson erandom escreen esd
estraier etwin examples exif festival ffmpeg firefox flac foomaticdb fortran
fping gd gdbm gdm geoip geometry geos gg gif gimp gimpprint ginac gkrellm glade
glibc-compat20 glut gmail gmailtimestamps gmp gmttria gnokii gnuplot gnutls
gphoto2 gpm gprof graphviz gstreamer gtk gtk2 gtkhtml guile gzip hal haskell
hbci icons ieee1394 imagemagick imlib imlib2 infopipe inkjar irda isdnlog
jabber java javascript jikes jpeg kde kdeenablefinal kdm kig-scripting kipi
lapack latex lcd lcms ldb leim lesstif libg++ libwww logrotate logwatch lua mad
mailwrapper mikmod mime mmx mng mod_lisp monkey mono motif mozdevelop mozsha1
mozsvg mp3 mpeg mplayer musepack music musicbrainz mysql mysqli mzscheme
nautilus ncurses neXt nfs nls nntp nosource nptl nptlonly nsplugin ocaml
offensive ofx ogg ogre on-the-fly-crypt openal opengl oss pam pascal pci pcre
pdf perl php plotutils plugin png pnp postgres ppds pppd preview-latex print
python qhull qt-static qt3 qt4 quicktime quotes rdesktop readline real
reflection reiser4 reiserfs ruby samba sametime sbcl sdl session slp sms
sndfile speex spell spl sql sqlite sqlite3 sse sse-filters sse2 ssl stats
stencil-buffer subtitles subversion svg svga svgz tcltk tcpd tetex theora
threads thumbnail tidy tiff tomsfastmath transcode truetype truetype-fonts
type1 type1-fonts udev usb v4l v4l2 videos vim vim-with-x visualization vnc
vorbis wifi win32codecs wma wmf wxwindows xanim xcomposite xext xft xine xml
xmms xorg xpm xprint xrandr xscreensaver xv yaz zlib elibc_glibc
input_devices_keyboard input_devices_mouse input_devices_synaptics kernel_linux
linguas_pt userland_GNU video_cards_ati video_cards_radeon video_cards_fbdev
video_cards_vesa"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
PORTAGE_RSYNC_EXTRA_OPTS

Huh. I fixed this a while back, didn't notice this bug :|