The cholmod library includes some debug features. To enable them, you have to apply the following patch : --- CHOLMOD.old/Include/cholmod_internal.h 2011-08-09 16:59:30.377991693 +0200 +++ CHOLMOD/Include/cholmod_internal.h 2009-09-29 16:24:03.000000000 +0200 @@ -48,14 +48,7 @@ /* === debugging and basic includes ========================================= */ /* ========================================================================== */ -/* turn off debugging */ -#ifndef NDEBUG -#define NDEBUG -#endif - -/* Uncomment this line to enable debugging. CHOLMOD will be very slow. #undef NDEBUG - */ #ifdef MATLAB_MEX_FILE #include "mex.h" Note : It is important to say that enabling the debug feature will slowdown the library (but I think that people enabling debug know what they do), add lots of message on the console and change a little the behaviour (application will crash if cholmod_l_finish is call and some memory still available) Reproducible: Always Portage 2.1.10.10 (default/linux/amd64/10.0, gcc-4.5.3, glibc-2.13-r3, 2.6.39-gentoo-r2 x86_64) ================================================================= System uname: Linux-2.6.39-gentoo-r2-x86_64-Intel-R-_Pentium-R-_4_CPU_3.20GHz-with-gentoo-2.0.3 Timestamp of tree: Mon, 08 Aug 2011 07:30:01 +0000 app-shells/bash: 4.2_p10 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.2-r2, 3.2-r2 dev-util/cmake: 2.8.5-r2 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.0.3 sys-apps/openrc: 0.8.3-r1 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.11.1-r1 sys-devel/binutils: 2.21.1 sys-devel/gcc: 4.5.3 sys-devel/gcc-config: 1.4.1-r1 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r1 sys-kernel/linux-headers: 2.6.38 (virtual/os-headers) sys-libs/glibc: 2.13-r3 Repositories: gentoo gnome science ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O0 -g3 -ggdb3 -pipe -Wl,--as-needed -Wl,-O0 -fno-builtin-strlen" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O0 -g3 -ggdb3 -pipe -Wl,--as-needed -Wl,-O0 -fno-builtin-strlen" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles fixpackages news noclean parallel-fetch protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="fr_FR.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-O0" LINGUAS="fr en ja" MAKEOPTS="-j3" 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="/var/lib/layman/gnome /var/lib/layman/science" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acl amd64 berkdb bindist bzip2 cli cracklib crypt cups cxx dbus debug dri fortran gdbm gnome gpm gtk3 iconv introspection java6 metis mmx modules mpi mpi-threads mudflap multilib ncurses nls nptl nptlonly opengl openmp pam pcre perl pppd python readline session sse sse2 ssl sysfs tbb 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" CALLIGRA_FEATURES="braindump flow karbon kexi kpresenter krita tables words" CAMERAS="ptp2" 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="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="fr en ja" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" SANE_BACKENDS="hp3500 hp" USERLAND="GNU" VIDEO_CARDS="nvidia" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
+ 26 Jan 2012; Justin Lecher <jlec@gentoo.org> cholmod-1.7.4.ebuild, + +files/cholmod-1.7.4-debug.patch, metadata.xml: + Add support for USE=debug, #378525 +
