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Bug 347754 - media-libs/tiff-4.0.0_beta6 QA tiff2pdf.c warning: dereferencing type-punned pointer will break strict-aliasing rules
Summary: media-libs/tiff-4.0.0_beta6 QA tiff2pdf.c warning: dereferencing type-punned ...
Status: RESOLVED UPSTREAM
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Linux bug wranglers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-12-04 19:42 UTC by David J Cozatt
Modified: 2010-12-08 02:20 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
build log (media-libs:tiff-4.0.0_beta6:20101204-084651.log,109.95 KB, text/plain)
2010-12-04 19:54 UTC, David J Cozatt
Details

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Description David J Cozatt 2010-12-04 19:42:42 UTC
QA Notice: Package has poor programming practices which may compile                    │
│           fine but exhibit random runtime failures.   tiff2pdf.c:5156:2: warning: dereferencing type-punned pointer will break strict-       │
│aliasing rules   

Reproducible: Always




random david # emerge --info tiff 
Portage 2.1.9.25 (default/linux/amd64/10.0, gcc-4.5.1, glibc-2.12.1-r3, 2.6.36-gentoo-r3 x86_64)
=================================================================
                        System Settings
=================================================================
System uname: Linux-2.6.36-gentoo-r3-x86_64-AMD_Athlon-tm-_64_Processor_3200+-with-gentoo-2.0.1
Timestamp of tree: Fri, 03 Dec 2010 02:15:02 +0000
app-shells/bash:     4.1_p9
dev-java/java-config: 2.1.11-r2
dev-lang/python:     2.6.6-r1, 2.7.1, 3.1.3
dev-util/cmake:      2.8.1-r2
sys-apps/baselayout: 2.0.1-r1
sys-apps/openrc:     0.6.6
sys-apps/sandbox:    2.4
sys-devel/autoconf:  2.13, 2.68
sys-devel/automake:  1.10.3, 1.11.1
sys-devel/binutils:  2.20.1-r1
sys-devel/gcc:       4.4.5, 4.5.1-r1
sys-devel/gcc-config: 1.4.1
sys-devel/libtool:   2.4-r1
sys-devel/make:      3.82
virtual/os-headers:  2.6.36.1 (sys-kernel/linux-headers)
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /etc/"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs buildpkg distlocks fixlafiles fixpackages multilib-strict news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
GENTOO_MIRRORS="ftp://ftp.gtlib.gatech.edu/pub/gentoo/ ftp://gentoo.chem.wisc.edu/gentoo/ http://mirrors.163.com/gentoo/ ftp://mirror.bih.net.ba/gentoo/"
LDFLAGS="-Wl,--hash-style=gnu,-O1 -Wl,--as-needed"
LINGUAS="en_US"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
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="   "
SYNC="rsync://rsync.us.gentoo.org/gentoo-portage"
USE="acl alsa amd64 berkdb bzip2 cdr cli cracklib crypt cups cxx dri en fortran gdbm gpm gtk iconv ipv6 midi mmx modules mudflap multilib ncurses nls nptl nptlonly openmp pam pcre perl pic pppd python readline session sse sse2 ssl sysfs tcpd threads unicode xorg 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 cgi cgid 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_US" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18 ree18" USERLAND="GNU" VIDEO_CARDS="nv nvidia vesa nouveau" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" 
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, MAKEOPTS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

=================================================================
                        Package Settings
=================================================================

media-libs/tiff-4.0.0_beta6 was built with the following:
USE="cxx (multilib) zlib -jbig -jpeg -static-libs"
Comment 1 David J Cozatt 2010-12-04 19:54:17 UTC
Created attachment 256346 [details]
build log
Comment 2 Martin Walch 2010-12-05 11:40:56 UTC
This should be fixed upstream and is already fixed there in CVS. For details see

http://bugzilla.maptools.org/show_bug.cgi?id=2001

Should the fix be backported or are things fine in this case?
Comment 3 Jeroen Roovers (RETIRED) gentoo-dev 2010-12-05 21:01:42 UTC
 [33;01m*[0m Please do not file a Gentoo bug and instead report the above QA
 [33;01m*[0m issues directly to the upstream developers of this software.
 [33;01m*[0m Homepage: http://www.remotesensing.org/libtiff/
Comment 4 David J Cozatt 2010-12-08 02:20:10 UTC
The link when followed yields from http://www.remotesensing.org/libtiff/bugs.html

"If you think you've discovered a bug, please first check to see if it is already known by looking at the list of already reported bugs. You can do so by visiting the buglist at http://bugzilla.maptools.org/buglist.cgi?product=libtiff. Also verify that the problem is still reproducable with the current development software from CVS."

Not enough I've already learned to patch and some git now I have to learn to use CVS before the bug is acceptable.