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Bug 594354 - media-gfx/pixie-2.2.6-r1 : ../.../mathSpec.h:548:37: error: ‘max’ was not declared in this scope
Summary: media-gfx/pixie-2.2.6-r1 : ../.../mathSpec.h:548:37: error: ‘max’ was not dec...
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: No maintainer - Look at if you want to take care of it
: 630008 (view as bug list)
Depends on:
Blocks: gcc-6 gcc-6-stable
  Show dependency tree
Reported: 2016-09-19 11:34 UTC by Toralf Förster
Modified: 2017-10-13 19:23 UTC (History)
4 users (show)

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

emerge-history.txt (emerge-history.txt,267.54 KB, text/plain)
2016-09-19 11:34 UTC, Toralf Förster
environment (environment,101.58 KB, text/plain)
2016-09-19 11:34 UTC, Toralf Förster
media-gfx:pixie-2.2.6-r1:20160919-111159.log (media-gfx:pixie-2.2.6-r1:20160919-111159.log,16.91 KB, text/plain)
2016-09-19 11:34 UTC, Toralf Förster

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Description Toralf Förster gentoo-dev 2016-09-19 11:34:33 UTC
                 from file.cpp:33:
../common/mathSpec.h: In function ‘void fresnel(const float*, const float*, float, float&, float&, float*, float*)’:
../common/mathSpec.h:548:37: error: ‘max’ was not declared in this scope
  const SCALAR_TYPE g  = SQRT(max(t,0));

$ cat emerge-info.txt

  This is an unstable amd64 chroot image (named amd64-hardened-no-multilib-unstable_20160914-150349) at a hardened host acting as a tinderbox.

  USE flags ...

  ... in make.conf:
USE="  pax_kernel xtpax -cdinstall -oci8 -bindist apache -cgi cgroups csc dec_av2 dot -dvb extra ffmpeg freetds gd git -gnome-keyring -gtkstyle havege help hpn imlib -introspection ithreads javascript jpeg kerberos mikmod -mpeg2 networking opencv -opus osc pkcs11 -plasma plotutils pwquality sdl source sqlite ssh ssh-askpass sslv2 system-libs system-sqlite szip tracepath usb usbredir vala -wav webstart wma x264 xa xkb xvfb zenmap ziffy"

  ... in /etc/portage/package.use/*:
  mail-mta/ssmtp      ssl mta
  net-misc/wget       ssl
  app-crypt/pinentry  -qt4
  app-editors/emacs   -dbus -svg -ssl -gtk -gtk3
  app-text/xmlto      -latex
  dev-libs/boehm-gc   threads
  dev-libs/libpcre    pcre16
  dev-qt/qtgui        egl eglfs
  net-nds/openldap    -sasl
  dev-util/cmake      -qt4 -qt5
  dev-vcs/git         -perl
  gnome-base/librsvg  -tools
  media-libs/mesa     -vaapi
  sys-apps/kmod       tools
  <=net-misc/openssh-7.3_p1-r2    -hpn
  net-misc/iputils -caps -filecaps
  >=dev-lang/python-2.7.12:2.7 ssl
  >=dev-lang/python-3.4.5:3.4 ssl

  entries in /etc/portage/package.unmask/*:

gcc-config -l:
 [1] x86_64-pc-linux-gnu-6.2.0 *
llvm-config --version:

Available Python interpreters, in order of preference:
  [1]   python2.7
  [2]   python3.4
  [3]   pypy (fallback)


Portage 2.3.1 (python 2.7.12-final-0, hardened/linux/amd64/no-multilib, gcc-6.2.0, glibc-2.23-r2, 4.7.4-hardened x86_64)
                         System Settings
System uname: Linux-4.7.4-hardened-x86_64-Intel-R-_Core-TM-_i7-3930K_CPU_@_3.20GHz-with-gentoo-2.3
KiB Mem:    65285480 total,   3218648 free
KiB Swap:   67108860 total,  67106204 free
Timestamp of repository gentoo: Mon, 19 Sep 2016 10:07:02 +0000
sh bash 4.3_p46
ld GNU ld (Gentoo 2.26.1 p1.0) 2.26.1
ccache version 3.2.7 [disabled]
app-shells/bash:          4.3_p46::gentoo
dev-lang/perl:            5.24.0-r1::gentoo
dev-lang/python:          2.7.12::gentoo, 3.4.5::gentoo
dev-util/ccache:          3.2.7::gentoo
dev-util/cmake:           3.6.2::gentoo
dev-util/pkgconfig:       0.29.1::gentoo
sys-apps/baselayout:      2.3::gentoo
sys-apps/openrc:          0.21.7::gentoo
sys-apps/sandbox:         2.10-r2::gentoo
sys-devel/autoconf:       2.13::gentoo, 2.69-r2::gentoo
sys-devel/automake:       1.9.6-r4::gentoo, 1.10.3-r2::gentoo, 1.11.6-r2::gentoo, 1.12.6-r1::gentoo, 1.13.4-r1::gentoo, 1.14.1-r1::gentoo, 1.15-r2::gentoo
sys-devel/binutils:       2.26.1::gentoo
sys-devel/gcc:            6.2.0::gentoo
sys-devel/gcc-config:     1.8-r1::gentoo
sys-devel/libtool:        2.4.6-r2::gentoo
sys-devel/make:           4.2.1::gentoo
sys-kernel/linux-headers: 4.7::gentoo (virtual/os-headers)
sys-libs/glibc:           2.23-r2::gentoo

    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://
    priority: 1

    location: /usr/local/portage
    masters: gentoo
    priority: 2

ACCEPT_KEYWORDS="amd64 ~amd64"
CFLAGS="-march=native -O2 -pipe"
CONFIG_PROTECT="/etc /etc/omega.conf /usr/lib64/fax /usr/share/config /usr/share/gnupg/qualified.txt /var/rancid/.cloginrc /var/spool/fax/etc /var/yp/Makefile"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/apache2-php7.0/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cgi-php7.0/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/php/cli-php7.0/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe"
EMERGE_DEFAULT_OPTS="--verbose --verbose-conflicts --color=n --nospinner --tree --quiet-build"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync network-sandbox parallel-fetch preserve-libs protect-owned sandbox sfperms strict test-fail-continue unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS=" rsync:// rsync://"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
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 --exclude=/.git"
USE="acl amd64 apache berkdb bzip2 cgroups cli cracklib crypt csc cxx dec_av2 dot dri extra ffmpeg freetds gd gdbm git hardened havege help hpn iconv imlib ipv6 ithreads javascript jpeg justify kerberos mikmod mmx mmxext modules ncurses networking nls nptl opencv openmp osc pam pax_kernel pcre pie pkcs11 plotutils pwquality readline sdl seccomp session source sqlite sse sse2 ssh ssh-askpass ssl sslv2 ssp system-libs system-sqlite szip tcpd tracepath unicode urandom usb usbredir vala webstart wma x264 xa xattr xkb xtpax xvfb zenmap ziffy zlib" ABI_X86="64" 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" APACHE2_MODULES="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 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="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" 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 ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" L10N="ca chr en-US eo fr hy pl pt" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" 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"
Comment 1 Toralf Förster gentoo-dev 2016-09-19 11:34:40 UTC
Created attachment 446614 [details]
Comment 2 Toralf Förster gentoo-dev 2016-09-19 11:34:42 UTC
Created attachment 446616 [details]
Comment 3 Toralf Förster gentoo-dev 2016-09-19 11:34:45 UTC
Created attachment 446618 [details]
Comment 4 Toralf Förster gentoo-dev 2017-07-29 21:54:02 UTC
(In reply to Toralf Förster from comment #3)
why ?
Comment 5 Andreas K. Hüttel gentoo-dev 2017-09-28 19:15:08 UTC
Fix or remove from tree... Needed for gcc-6 support.
Comment 6 Andreas K. Hüttel gentoo-dev 2017-09-30 17:17:15 UTC
*** Bug 630008 has been marked as a duplicate of this bug. ***
Comment 7 Andreas K. Hüttel gentoo-dev 2017-10-02 12:51:29 UTC
This beast declares "#define min ..." etc in a global.h header file. 

Which stops working properly with gcc-6, independent of a -std=gnu++98 setting.
Comment 8 Peter Levine 2017-10-10 06:02:23 UTC
I've had a look at this.

The package defines its own `min` and `max` function-like macros which conflict with functions of GCC-6 with the same name and the symbols get hidden causing build failure.  Attempting to force `std::min` and `std::max` failed as those rely on arguments being of the same type and the source code freely mixes floating point and integral types as arguments.  Allowing the code to use a C++11 solution (eg., templated constexpr functions with type-traits) when compiling in a post-C++11 dialect also failed since `-std=c++98` could be passed and It appears the problem is just related to GCC-6, not the dialect as well.

The only solutions appears to be either dropping the package from the Gentoo tree or patching the macro names at their definition and every point of use with a massive patch.

I made a patch at but it's too big for repoman.

Note: I suppose it might be possible to use the original patch I submitted to ( and use toolchain-funcs to see if >=gcc-6 is being used and if so, append `-std=c++14` to the CXXFLAGS, but it's ugly.
Comment 9 Larry the Git Cow gentoo-dev 2017-10-13 19:23:03 UTC
The bug has been closed via the following commit(s):

commit 71ad61ddbc9ccffc404ea2866f81fc4d8f7a835d
Author:     Andreas K. Hüttel <>
AuthorDate: 2017-10-13 19:22:37 +0000
Commit:     Andreas K. Hüttel <>
CommitDate: 2017-10-13 19:22:53 +0000

    media-gfx/pixie: Add patch by Peter Levine for gcc-6 compatibility, bug 594354. Many thanks!
    Package-Manager: Portage-2.3.11, Repoman-2.3.3

 media-gfx/pixie/Manifest              | 1 +
 media-gfx/pixie/pixie-2.2.6-r1.ebuild | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)