Each time Inkscape version 0.37 is started it promptly aborts with the following error message: ** ERROR **: file bezier-utils.cpp: line 664 (gdouble compute_max_error(const NR::Point*, const double*, unsigned int,const NR::Point*, unsigned int*)): assertion failed: (u[last] == 1.0) aborting... Aborted Reproducible: Always Steps to Reproduce: 1. 2. 3.
Here is emerge info: Portage 2.0.50-r11 (default-x86-2004.2, gcc-3.3.4, glibc-2.3.3.20040420-r1, 2.6.8-gentoo-r6) ================================================================= System uname: 2.6.8-gentoo-r6 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz Gentoo Base System version 1.4.16 ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.59-r4 Automake: sys-devel/automake-1.8.5-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O3 -mcpu=pentium4 -march=pentium4 -fomit-frame-pointer -mfpmath=sse -ffast-math -pipe" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/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/lib/mozilla/defaults/pref /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/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O3 -mcpu=pentium4 -march=pentium4 -fomit-frame-pointer -mfpmath=sse -ffast-math -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://mirror.nutsmaas.nl/gentoo/ http://gd.tuwien.ac.at/opsys/linux/gentoo/ http://gentoo.tiscali.nl/gentoo/" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X alsa apm arts avi berkdb bitmap-fonts cdr crypt cups dvd encode esd f77 foomaticdb gdbm gif gnome gpm gtk gtk2 guile imlib java jpeg kde libg++ libwww linguas_en_GB mad mikmod motif mozilla mpeg mysql ncurses nls nptl oggvorbis opengl oss pam pdflib perl png ppds python qt quicktime readline sdl slang spell ssl svga tcpd tetex truetype x86 xml2 xmms xprint xv zlib"
try recompiling with sane cflags first off.
Following your advice I removed the "-O3" flag completely whilst leaving all the other flags in. Recompiling inkscape without the -O3 flag fixed the startup error. I have no further issues to report (for now :-) ). Thanks for your help!