Bugzilla Bug 239941

I've got -ftracer in my C(XX)FLAGS and because of that, wireshark-1.1.0 fails
to build : 

        then mv -f ".deps/libdissectors_la-packet-bootp.Tpo"
".deps/libdissectors_la-packet-bootp.Plo"; else rm -f
".deps/libdissectors_la-packet-bootp.Tpo"; exit 1; fi
libtool: compile:  x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../..
-I./../.. -I./.. -I/usr/include -I/usr/local/include
-DPLUGIN_DIR=\"/usr/lib64/wireshark/plugins/1.1.0\" -Werror -DINET6
"-D_U_=__attribute__((unused))" -march=k8 -O2 -pipe -ftree-vectorize -ftracer
-Wall -W -Wdeclaration-after-statement -Wendif-labels -Wpointer-arith
-Wno-pointer-sign -Warray-bounds -Wcast-align -I/usr/include
-I/usr/local/include -pthread -I/usr/include/gtk-2.0
-I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo
-I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include
-I/usr/include/pixman-1 -I/usr/include/freetype2
-I/usr/include/libpng12 -MT libdissectors_la-packet-bootp.lo -MD -MP -MF
.deps/libdissectors_la-packet-bootp.Tpo -c packet-bootp.c  -fPIC -DPIC -o
.libs/libdissectors_la-packet-bootp.o
cc1: warnings being treated as errors
packet-bgp.c: In function ‘dissect_bgp’:
packet-bgp.c:2743: erreur: variable ‘next_tvb’ might be clobbered by
‘longjmp’ or ‘vfork’
make[4]: *** [libdissectors_la-packet-bgp.lo] Erreur 1
make[4]: *** Attente des tâches non terminées....
make[4]: quittant le répertoire «
/var/tmp/portage/net-analyzer/wireshark-1.1.0/work/wireshark-1.1.0/epan/dissectors
»
make[3]: *** [all] Erreur 2
make[3]: quittant le répertoire «
/var/tmp/portage/net-analyzer/wireshark-1.1.0/work/wireshark-1.1.0/epan/dissectors
»
make[2]: *** [all-recursive] Erreur 1
make[2]: quittant le répertoire «
/var/tmp/portage/net-analyzer/wireshark-1.1.0/work/wireshark-1.1.0/epan »
make[1]: *** [all-recursive] Erreur 1
make[1]: quittant le répertoire «
/var/tmp/portage/net-analyzer/wireshark-1.1.0/work/wireshark-1.1.0 »
make: *** [all] Erreur 2

If i disable this flags, wireshark builds correctly. ;) 

It is not really a problem for me, i just wanted to inform you about this.

Maybe this FLAG should be filtered... I don't know if there is another way to
fix this kind of bug. 



emerge --info : 
Portage 2.2_rc11 (default/linux/amd64/2008.0/desktop, gcc-4.3.2,
glibc-2.8_p20080602-r0, 2.6.27-rc4 x86_64)
=================================================================
System uname:
Linux-2.6.27-rc4-x86_64-AMD_Athlon-tm-_64_Processor_4000+-with-gentoo-2.0.0
Timestamp of tree: Sun, 05 Oct 2008 07:30:01 +0000
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p39
dev-java/java-config: 1.3.7, 2.1.6-r1
dev-lang/python:     2.5.2-r8, 2.6
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache:     2.4-r8
sys-apps/baselayout: 2.0.0
sys-apps/openrc:     9999
sys-apps/sandbox:    1.2.18.1-r3
sys-devel/autoconf:  2.13, 2.63
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1-r1
sys-devel/binutils:  2.18.50.0.9
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   2.2.6a
virtual/os-headers:  2.6.26
ACCEPT_KEYWORDS="amd64 ~amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -O2 -pipe -ftree-vectorize -ftracer"
CHOST="x86_64-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 /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/
/etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release
/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=k8 -O2 -pipe -ftree-vectorize -ftracer"
DISTDIR="/usr/portage/distfiles"
FEATURES="ccache distlocks parallel-fetch protect-owned sandbox sfperms strict
unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org
http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LANG="fr_FR.utf8"
LC_ALL="fr_FR.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=both"
LINGUAS="fr fr_FR"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage/layman/nouveau /usr/local/portage
/usr/local/portage/layman/gimp"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 avahi bash-completion
bluetooth branding bzip2 cairo cddb cdio cdr cli cracklib crypt cups dbus dri
dvb dvd dvdr dvdread emboss encode evo exif fam ffmpeg firefox flac fortran gcj
gdbm gif glibc-omitfp gphoto2 gpm hal iconv ipod ipv6 isdnlog jpeg kde
kdeenablefinal kdehiddenvisibility kipi libnotify live mad midi mikmod mmx
mmxext mp3 mpeg mudflap multilib musepack musicbrainz ncurses nls nptl nptlonly
ogg opengl openmp pam pcre pdf perl png ppds pppd python qt3 qt3support qt4
quicktime readline reflection samba session spell spl sse sse2 ssl
startup-notification svg sysfs tcpd theora tiff truetype unicode usb v4l v4l2
vorbis x264 xcb xinerama xml xorg xv xvid zlib" ALSA_CARDS="ali5451 als4000
atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968
fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx
via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop
empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul
mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="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 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" APACHE2_MPMS="prefork" CAMERAS="canon" ELIBC="glibc"
INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk
hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="fr fr_FR"
LIRC_DEVICES="devinput inputlirc" USERLAND="GNU" VIDEO_CARDS="nv nouveau"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Reproducible: Always

Steps to Reproduce:
1.Append -ftracer to your FLAGS
2.Unmask net-analyzer/wireshark
3.Compile net-analyzer/wireshark



Expected Results:  
It should build ...

Created an attachment (id=167293) [edit]
Build log

Thank you for report, Thomas. Fixed in the tree.