Re: [gentoo-user-es] ERROR: dev-util/boost-build-1.55.0::gentoo failed

[Freddy Taborda]

Esrtimado KyD

Funciono sin problemas, ahora se esta compilando el LVM2,  pero tengo una
duda yo tome el la configuracon iki.gentoo.org/wiki/Safe_CFLAGS
Core i3/i5/i7 & Xeon E3/E5/E7 *V1 y hasta el momento todos los paquetes
estaban compilando sin problema, y tu me estas pasando la configuracion
 Pentium y el paquete dev-util/boost-build-1.55.0::gentoo compilo sin
problema y al momento de estar eascribiendo esto se esta
compilando el resto de los que se necesita para LMV2, a manera de
aprendisaje como llegaste a esa conclucion, que parte de la informacion que
postee te sirvio?

Saludos y muchas gracias por la ayuda e informacion






2014-12-19 12:33 GMT-04:30 KyD <kyd.is.back@×××××.com>:

> Prueba lo siguiente :
>
> 1 ) export CFLAGS="-march=core-avx-i -mno-avx -mno-aes -mno-rdrnd -O2
> -pipe"
>
> 2 ) emerge --info | grep -i cflags (Esto es a modo de chequeo para ver que
> se seteo bien CFLAGS)
>
> Si quedo bien seteada :
>
> 3) emerge -v dev-util/boost-build
>
> 2014-12-19 13:53 GMT-03:00 Freddy Taborda <terracenter@×××××.com>:
>
>>  cat /proc/cpuinfo
>> processor       : 0
>> vendor_id       : GenuineIntel
>> cpu family      : 6
>> model           : 58
>> model name      : Intel(R) Pentium(R) CPU 2020M @ 2.40GHz
>> stepping        : 9
>> microcode       : 0x19
>> cpu MHz         : 2400.000
>> cache size      : 2048 KB
>> physical id     : 0
>> siblings        : 2
>> core id         : 0
>> cpu cores       : 2
>> apicid          : 0
>> initial apicid  : 0
>> fpu             : yes
>> fpu_exception   : yes
>> cpuid level     : 13
>> wp              : yes
>> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall
>> nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology
>> nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est
>> tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt
>> tsc_deadline_timer xsave lahf_lm arat epb xsaveopt pln pts dtherm
>> tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
>> bogomips        : 4789.09
>> clflush size    : 64
>> cache_alignment : 64
>> address sizes   : 36 bits physical, 48 bits virtual
>> power management:
>>
>> processor       : 1
>> vendor_id       : GenuineIntel
>> cpu family      : 6
>> model           : 58
>> model name      : Intel(R) Pentium(R) CPU 2020M @ 2.40GHz
>> stepping        : 9
>> microcode       : 0x19
>> cpu MHz         : 2400.000
>> cache size      : 2048 KB
>> physical id     : 0
>> siblings        : 2
>> core id         : 1
>> cpu cores       : 2
>> apicid          : 2
>> initial apicid  : 2
>> fpu             : yes
>> fpu_exception   : yes
>> cpuid level     : 13
>> wp              : yes
>> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall
>> nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology
>> nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est
>> tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt
>> tsc_deadline_timer xsave lahf_lm arat epb xsaveopt pln pts dtherm
>> tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
>> bogomips        : 4789.09
>> clflush size    : 64
>> cache_alignment : 64
>> address sizes   : 36 bits physical, 48 bits virtual
>> power management:
>>
>>
>> Saludos
>>
>> 2014-12-19 12:13 GMT-04:30 KyD <kyd.is.back@×××××.com>:
>>
>> Ok ,
>>>
>>> ¿ que procesador tienes ?
>>>
>>> 2014-12-19 13:12 GMT-03:00 Freddy Taborda <terracenter@×××××.com>:
>>>
>>>>
>>>> Gracias KyD
>>>>
>>>> # cat /etc/portage/make.conf
>>>> # These settings were set by the catalyst build script that
>>>> automatically
>>>> # built this stage.
>>>> # Please consult /usr/share/portage/config/make.conf.example for a more
>>>> # detailed example.
>>>> CFLAGS="-march=core-avx-i -O2 -pipe"
>>>> #CFLAGS="-O2 -pipe"
>>>> CXXFLAGS="${CFLAGS}"
>>>> # WARNING: Changing your CHOST is not something that should be done
>>>> lightly.
>>>> # Please consult http://www.gentoo.org/doc/en/change-chost.xml before
>>>> changing.
>>>> CHOST="x86_64-pc-linux-gnu"
>>>> # These are the USE flags that were used in addition to what is
>>>> provided by the
>>>> # profile used for building.
>>>> USE="bindist mmx multiuser openrc sse sse2 symlink -systemd"
>>>> PORTDIR="/usr/portage"
>>>> DISTDIR="${PORTDIR}/distfiles"
>>>> PKGDIR="${PORTDIR}/packages"
>>>> MAKEOPTS="-j1"
>>>> LINGUAS="es"
>>>> ACCEPT_LICENSE="*"
>>>> VIDEO_CARDS="intel"
>>>> ALSA_CARDS="intel"
>>>> INPUT_DEVICES="keyboard mouse evdev synaptics"
>>>>
>>>>
>>>> GENTOO_MIRRORS="rsync://gentoo.c3sl.ufpr.br/gentoo/
>>>> http://gentoo.c3sl.ufpr.br/ ftp://gentoo.c3sl.ufpr.br/gentoo/
>>>> http://www.las.ic.unicamp.br/pub/gentoo/
>>>> ftp://ftp.las.ic.unicamp.br/pub/gentoo/"
>>>>
>>>> SYNC="rsync://rsync1.br.gentoo.org/gentoo-portage"
>>>>
>>>>
>>>> Si necesitan algo mas de informacion por favor me avisan.
>>>>
>>>>
>>>> Saludos
>>>>
>>>> 2014-12-19 11:19 GMT-04:30 KyD <kyd.is.back@×××××.com>:
>>>>
>>>> cat make.conf
>>>>>
>>>>> 2014-12-19 12:32 GMT-03:00 Freddy Taborda <terracenter@×××××.com>:
>>>>>
>>>>>> Santiago gracias por tus comentarios.
>>>>>>
>>>>>> Igual con el mismo problema.
>>>>>>
>>>>>> http://pastebin.com/AquYw1GA
>>>>>>
>>>>>> Alguna idea mas.
>>>>>>
>>>>>> Saludos
>>>>>>
>>>>>> 2014-12-19 9:25 GMT-04:30 Santiago López Denazis <sldenazis@×××××.com
>>>>>> >:
>>>>>>
>>>>>> On 12/18/2014 11:45 PM, Freddy Taborda wrote:
>>>>>>> > Hola, hace mucho que no usaba Linux y mucho menos Gentoo, ya que
>>>>>>> no tenia
>>>>>>> > equipo, ahora estoy haciendo una nueva instalacion
>>>>>>> >
>>>>>>> http://terracenter.blogspot.com/2014/12/instalacion-de-gentoo-en-una-laptop.html
>>>>>>> > (le falta mucho a este tuto para dejarlo decente), pero al momento
>>>>>>> de
>>>>>>> > instalar lvm2 la compilacion me da estos errores
>>>>>>> >
>>>>>>>
>>>>>>>   Buenos días Freddy, si no es un problema para lo que necesitás,
>>>>>>> intenta compilarlo con -python:
>>>>>>>
>>>>>>>         echo dev-util/boost-build -python >> /etc/portage/package.use
>>>>>>>
>>>>>>>   Saludos,
>>>>>>>
>>>>>>> >
>>>>>>> >
>>>>>>> > # emerge -pv lvm2
>>>>>>> >
>>>>>>> > * IMPORTANT: 5 config files in '/etc/portage' need updating.
>>>>>>> > * See the CONFIGURATION FILES section of the emerge
>>>>>>> > * man page to learn how to update config files.
>>>>>>> >
>>>>>>> > These are the packages that would be merged, in order:
>>>>>>> >
>>>>>>> > Calculating dependencies... done!
>>>>>>> > [ebuild N ] dev-util/boost-build-1.55.0 USE="python -examples
>>>>>>> {-test}" 0
>>>>>>> > KiB
>>>>>>> > [ebuild N ] virtual/libudev-215-r1:0/1 USE="systemd -static-libs"
>>>>>>> > ABI_X86="(64) (-32) (-x32)" 0 KiB
>>>>>>> > [ebuild N ] dev-libs/boost-1.55.0-r2:0/1.55.0 USE="nls python
>>>>>>> threads
>>>>>>> > -context -debug -doc -icu -mpi -static-libs -tools"
>>>>>>> > ABI_X86="(64) (-32) (-x32)" PYTHON_TARGETS="python2_7 python3_3
>>>>>>> -python3_4"
>>>>>>> > 0 KiB
>>>>>>> > [ebuild N ] sys-block/thin-provisioning-tools-0.3.2-r1
>>>>>>> USE="{-test}" 0 KiB
>>>>>>> > [ebuild N ] sys-fs/lvm2-2.02.109 USE="readline systemd thin udev
>>>>>>> (-clvm)
>>>>>>> > (-cman) -device-mapper-only -lvm1 -lvm2create_ini
>>>>>>> > trd (-selinux) -static -static-libs" 0 KiB
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > * ERROR: dev-util/boost-build-1.55.0::gentoo failed (compile
>>>>>>> phase):
>>>>>>> > * building bjam failed
>>>>>>> > *
>>>>>>> > * Call stack:
>>>>>>> > * ebuild.sh, line 93: Called src_compile
>>>>>>> > * environment, line 4955: Called die
>>>>>>> > * The specific snippet of code:
>>>>>>> > * CC=$(tc-getCC) ./build.sh ${toolset} -d+2 $(use_with python
>>>>>>> python
>>>>>>> > "${EROOT}"/usr) || die "building bjam failed"
>>>>>>> > *
>>>>>>> > * If you need support, post the output of `emerge --info
>>>>>>> > '=dev-util/boost-build-1.55.0::gentoo'`,
>>>>>>> > * the complete build log and the output of `emerge -pqv
>>>>>>> > '=dev-util/boost-build-1.55.0::gentoo'`.
>>>>>>> > * The complete build log is located at
>>>>>>> > '/var/tmp/portage/dev-util/boost-build-1.55.0/temp/build.log'.
>>>>>>> > * The ebuild environment file is located at
>>>>>>> > '/var/tmp/portage/dev-util/boost-build-1.55.0/temp/environment'.
>>>>>>> > * Working directory:
>>>>>>> >
>>>>>>> '/var/tmp/portage/dev-util/boost-build-1.55.0/work/boost_1_55_0/tools/build/v2/engine'
>>>>>>> > * S:
>>>>>>> >
>>>>>>> '/var/tmp/portage/dev-util/boost-build-1.55.0/work/boost_1_55_0/tools/build/v2'
>>>>>>> >
>>>>>>> >>>> Failed to emerge dev-util/boost-build-1.55.0, Log file:
>>>>>>> >
>>>>>>> >>>> '/var/tmp/portage/dev-util/boost-build-1.55.0/temp/build.log'
>>>>>>> >
>>>>>>> > * Messages for package dev-util/boost-build-1.55.0:
>>>>>>> >
>>>>>>> > * ERROR: dev-util/boost-build-1.55.0::gentoo failed (compile
>>>>>>> phase):
>>>>>>> > * building bjam failed
>>>>>>> > *
>>>>>>> > * Call stack:
>>>>>>> > * ebuild.sh, line 93: Called src_compile
>>>>>>> > * environment, line 4955: Called die
>>>>>>> > * The specific snippet of code:
>>>>>>> > * CC=$(tc-getCC) ./build.sh ${toolset} -d+2 $(use_with python
>>>>>>> python
>>>>>>> > "${EROOT}"/usr) || die "building bjam failed"
>>>>>>> > *
>>>>>>> > * If you need support, post the output of `emerge --info
>>>>>>> > '=dev-util/boost-build-1.55.0::gentoo'`,
>>>>>>> > * the complete build log and the output of `emerge -pqv
>>>>>>> > '=dev-util/boost-build-1.55.0::gentoo'`.
>>>>>>> > * The complete build log is located at
>>>>>>> > '/var/tmp/portage/dev-util/boost-build-1.55.0/temp/build.log'.
>>>>>>> > * The ebuild environment file is located at
>>>>>>> > '/var/tmp/portage/dev-util/boost-build-1.55.0/temp/environment'.
>>>>>>> > * Working directory:
>>>>>>> >
>>>>>>> '/var/tmp/portage/dev-util/boost-build-1.55.0/work/boost_1_55_0/tools/build/v2/engine'
>>>>>>> > * S:
>>>>>>> >
>>>>>>> '/var/tmp/portage/dev-util/boost-build-1.55.0/work/boost_1_55_0/tools/build/v2'
>>>>>>> > livecd / #
>>>>>>> >
>>>>>>> > # emerge --info '=dev-libs/boost-1.55.0::gentoo'
>>>>>>> > Portage 2.2.14 (python 2.7.7-final-0, default/linux/amd64/13.0,
>>>>>>> gcc-4.8.3,
>>>>>>> > glibc-2.19-r1, 3.16.5-gentoo x86_64)
>>>>>>> > =================================================================
>>>>>>> > System Settings
>>>>>>> > =================================================================
>>>>>>> > System uname:
>>>>>>> Linux-3.16.5-gentoo-x86_64-Intel-R-_Pentium-R-_CPU_2020M_@
>>>>>>> > _2.40GHz-with-gentoo-2.2
>>>>>>> > KiB Mem: 3927272 total, 81700 free
>>>>>>> > KiB Swap: 2097148 total, 2096904 free
>>>>>>> > Timestamp of tree: Thu, 18 Dec 2014 17:15:01 +0000
>>>>>>> > ld GNU ld (Gentoo 2.24 p1.4) 2.24
>>>>>>> > app-shells/bash: 4.2_p53
>>>>>>> > dev-lang/perl: 5.18.2-r2
>>>>>>> > dev-lang/python: 2.7.7, 3.3.5-r1
>>>>>>> > dev-util/pkgconfig: 0.28-r1
>>>>>>> > sys-apps/baselayout: 2.2
>>>>>>> > sys-apps/openrc: 0.12.4
>>>>>>> > sys-apps/sandbox: 2.6-r1
>>>>>>> > sys-devel/autoconf: 2.69
>>>>>>> > sys-devel/automake: 1.13.4
>>>>>>> > sys-devel/binutils: 2.24-r3
>>>>>>> > sys-devel/gcc: 4.8.3
>>>>>>> > sys-devel/gcc-config: 1.7.3
>>>>>>> > sys-devel/libtool: 2.4.2-r1
>>>>>>> > sys-devel/make: 4.0-r1
>>>>>>> > sys-kernel/linux-headers: 3.16 (virtual/os-headers)
>>>>>>> > Repositories: gentoo
>>>>>>> > ACCEPT_LICENSE="*"
>>>>>>> > CBUILD="x86_64-pc-linux-gnu"
>>>>>>> > CFLAGS="-march=core-avx-i -O2 -pipe"
>>>>>>> > CHOST="x86_64-pc-linux-gnu"
>>>>>>> > CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
>>>>>>> > CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d
>>>>>>> /etc/gconf
>>>>>>> > /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc
>>>>>>> > /terminfo"
>>>>>>> > CXXFLAGS="-march=core-avx-i -O2 -pipe"
>>>>>>> > DISTDIR="/usr/portage/distfiles"
>>>>>>> > FCFLAGS="-O2 -pipe"
>>>>>>> > FEATURES="assume-digests binpkg-logs config-protect-if-modified
>>>>>>> distlocks
>>>>>>> > ebuild-locks fixlafiles merge-sync news parallel-fetch
>>>>>>> > preserve-libs protect-owned sandbox sfperms strict
>>>>>>> unknown-features-warn
>>>>>>> > unmerge-logs unmerge-orphans userfetch userpriv usersa
>>>>>>> > ndbox usersync"
>>>>>>> > FFLAGS="-O2 -pipe"
>>>>>>> > GENTOO_MIRRORS="rsync://gentoo.c3sl.ufpr.br/gentoo/
>>>>>>> > http://gentoo.c3sl.ufpr.br/ ftp://gentoo.c3sl.ufpr.br/gentoo/
>>>>>>> http://www.las
>>>>>>> >
>>>>>>> > .ic.unicamp.br/pub/gentoo/ ftp://ftp.las.ic.unicamp.br/pub/gentoo/
>>>>>>> "
>>>>>>> > LANG="es_VE.utf8"
>>>>>>> > LDFLAGS="-Wl,-O1 -Wl,--as-needed"
>>>>>>> > MAKEOPTS="-j1"
>>>>>>> > PKGDIR="/usr/portage/packages"
>>>>>>> > PORTAGE_CONFIGROOT="/"
>>>>>>> > PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms
>>>>>>> --times
>>>>>>> > --omit-dir-times --compress --force --whole-file --delete -
>>>>>>> > -stats --human-readable --timeout=180 --exclude=/distfiles
>>>>>>> --exclude=/local
>>>>>>> > --exclude=/packages"
>>>>>>> > PORTAGE_TMPDIR="/var/tmp"
>>>>>>> > PORTDIR="/usr/portage"
>>>>>>> > PORTDIR_OVERLAY=""
>>>>>>> > SYNC="rsync://rsync1.br.gentoo.org/gentoo-portage"
>>>>>>> > USE="acl amd64 berkdb bindist bzip2 cli cracklib crypt cxx dri
>>>>>>> fortran gdbm
>>>>>>> > iconv ipv6 mmx modules multilib multiuser ncurses nl
>>>>>>> > s nptl openmp pam pcre python readline session sse sse2 ssl
>>>>>>> systemd tcpd
>>>>>>> > unicode zlib" ABI_X86="64" ALSA_CARDS="intel" APACHE2_M
>>>>>>> > ODULES="authn_core authz_core socache_shmcb unixd 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 defl
>>>>>>> > ate dir disk_cache env expires ext_filter file_cache filter
>>>>>>> headers include
>>>>>>> > info log_config logio mem_cache mime mime_magic nego
>>>>>>> > tiation rewrite setenvif speling status unique_id userdir usertrack
>>>>>>> > vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets
>>>>>>> > stage tables krita karbon braindump author" CAMERAS="ptp2"
>>>>>>> > COLLECTD_PLUGINS="df interface irq load memory rrdtool swap
>>>>>>> syslog" E
>>>>>>> > LIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18
>>>>>>> garmin
>>>>>>> > garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oce
>>>>>>> > anserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2
>>>>>>> timing tsip
>>>>>>> > tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse e
>>>>>>> > vdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz
>>>>>>> cfontz633 glk
>>>>>>> > hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_E
>>>>>>> > XTENSIONS="presenter-console presenter-minimizer" LINGUAS="es"
>>>>>>> > OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_S
>>>>>>> > INGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3"
>>>>>>> > RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="intel" XT
>>>>>>> > ABLES_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_COMPRES
>>>>>>> > S_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > Muchas gracias por la ayuda que me puedan dar, ya que no he
>>>>>>> encontrado
>>>>>>> > referencia a esa version, trate de montar la r1, pero tambien me
>>>>>>> sale
>>>>>>> > error.
>>>>>>> >
>>>>>>> >
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Santiago López Denazis
>>>>>>> GNU/Linux SysAdmin
>>>>>>> sldenazis@×××××.com
>>>>>>> Free your source, free your mind.
>>>>>>> ----
>>>>>>> Por favor, no utilice formatos de archivo privativos para el
>>>>>>> intercambio
>>>>>>> de documentos, como DOC y XLS, sino HTML, PDF, TXT, CSV o cualquier
>>>>>>> otro
>>>>>>> que no obligue a utilizar un programa de un fabricante concreto. Vea
>>>>>>> http://www.gnu.org/philosophy/no-word-attachments.es.html
>>>>>>> --
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Freddy Taborda
>>>>>> Consultor Técnico
>>>>>> Valencia - Venezuela
>>>>>> GNU/Linux user #283478
>>>>>> ECE #208825114
>>>>>>
>>>>>>
>>>>>> What gets us into trouble is not what we don't know. It's what we
>>>>>> know for sure that just ain't so.
>>>>>>
>>>>>>                                    Mark Twain
>>>>>>
>>>>>> "Those that can, do. Those that can’t, complain."
>>>>>>                                                  Linus Torvalds
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Freddy Taborda
>>>> Consultor Técnico
>>>> Valencia - Venezuela
>>>> GNU/Linux user #283478
>>>> ECE #208825114
>>>>
>>>>
>>>> What gets us into trouble is not what we don't know. It's what we know
>>>> for sure that just ain't so.
>>>>
>>>>                                  Mark Twain
>>>>
>>>> "Those that can, do. Those that can’t, complain."
>>>>                                                  Linus Torvalds
>>>>
>>>
>>
>>
>> --
>>
>> Freddy Taborda
>> Consultor Técnico
>> Valencia - Venezuela
>> GNU/Linux user #283478
>> ECE #208825114
>>
>>
>> What gets us into trouble is not what we don't know. It's what we know
>> for sure that just ain't so.
>>
>>                                Mark Twain
>>
>> "Those that can, do. Those that can’t, complain."
>>                                                  Linus Torvalds
>>
>


-- 

Freddy Taborda
Consultor Técnico
Valencia - Venezuela
GNU/Linux user #283478
ECE #208825114


What gets us into trouble is not what we don't know. It's what we know for
sure that just ain't so.

                             Mark Twain

"Those that can, do. Those that can’t, complain."
                                                 Linus Torvalds