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Bug 936236 - net-analyzer/mrtg-2.17.10: configure fails to determine printf long long format specifier under GCC 14
Summary: net-analyzer/mrtg-2.17.10: configure fails to determine printf long long form...
Status: UNCONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal major
Assignee: Gentoo Netmon project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: gcc-14
  Show dependency tree
 
Reported: 2024-07-18 00:54 UTC by Byron Stanoszek
Modified: 2024-07-20 15:27 UTC (History)
1 user (show)

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


Attachments
Patch to fix configure (compile-under-gcc14.patch,360 bytes, patch)
2024-07-18 00:55 UTC, Byron Stanoszek
Details | Diff

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Description Byron Stanoszek 2024-07-18 00:54:38 UTC
The "configure" script has implicit function declarations when trying to determine the printf long long format specifier to use. The conftest.c fails to compile under GCC 14, but "configure" does not error out. This leaves #define LLD and LLD_FORMAT to be set to "", but the package still compiles to completion. This causes MRTG to fail when reading any long long value from the network history logfiles.

The conftest.c file in question is here:

#include <stdio.h>
            int main()
            {
                long long b, a = -0x3AFAFAFAFAFAFAFALL;
                char buffer[1000];
                sprintf (buffer, "%${format}u", a);
                sscanf (buffer, "%${format}u", &b);
                exit (b!=a);
            }

conftest.c: In function 'main':
conftest.c:8:17: error: implicit declaration of function 'exit'
conftest.c:8:17: note: include '<stdlib.h>' or provide a declaration of 'exit'
conftest.c:8:17: warning: incompatible implicit declaration of built-in function 'exit'
conftest.c:8:17: note: include '<stdlib.h>' or provide a declaration of 'exit'

I will include a patch workaround.

Reproducible: Always




Portage 3.0.65 (python 3.12.4-final-0, default/linux/amd64/23.0/split-usr, gcc-14, glibc-2.39-r9, 6.8.7 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.8.7-x86_64-Intel-R-_Xeon-R-_Gold_6326_CPU_@_2.90GHz-with-glibc2.39
KiB Mem:     6090484 total,   3424640 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Wed, 17 Jul 2024 08:30:00 +0000
Head commit of repository gentoo: f8cf5f8a4da0bfef2c1840490ee9a3abea69096b
sh bash 5.2_p26-r8
ld GNU ld (Gentoo 2.42 p6) 2.42.0
app-misc/pax-utils:        1.3.7::gentoo
app-shells/bash:           5.2_p26-r8::gentoo
dev-build/autoconf:        2.72-r1::gentoo
dev-build/automake:        1.17-r1::gentoo
dev-build/cmake:           3.30.0::gentoo
dev-build/libtool:         2.4.7-r4::gentoo
dev-build/make:            4.4.1-r1::gentoo
dev-build/meson:           1.5.0::gentoo
dev-lang/perl:             5.40.0::gentoo
dev-lang/python:           3.12.4_p2::gentoo, 3.13.0_beta3_p1::gentoo
sys-apps/baselayout:       2.15::gentoo
sys-apps/openrc:           0.54.2::gentoo
sys-apps/sandbox:          2.39::gentoo
sys-devel/binutils:        2.42-r2::gentoo
sys-devel/binutils-config: 5.5::gentoo
sys-devel/gcc:             14.1.1_p20240622::gentoo
sys-devel/gcc-config:      2.11::gentoo
sys-kernel/linux-headers:  6.9::gentoo (virtual/os-headers)
sys-libs/glibc:            2.39-r9::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://68.75.195.1/portage
    priority: -1000
    volatile: True
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-jobs: 1
    sync-rsync-extra-opts: --exclude ChangeLog --delete-excluded --delete-during
    sync-rsync-verify-max-age: 3

x-portage
    location: /usr/local/portage
    masters: gentoo
    priority: 0
    volatile: True

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=corei7-avx -mtune=native -fomit-frame-pointer"
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/php/apache2-php8.3/ext-active/ /etc/php/cgi-php8.3/ext-active/ /etc/php/cli-php8.3/ext-active/ /etc/php/fpm-php8.3/ext-active/ /etc/php/phpdbg-php8.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -march=corei7-avx -mtune=native -fomit-frame-pointer"
DISTDIR="/etc/portage/distfiles"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs"
LEX="flex"
LINGUAS="en"
MAKEOPTS="-j1"
PKGDIR="/var/cache/binpkgs"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude ChangeLog --delete-excluded --delete-during"
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"
PORTAGE_TMPDIR="/var/tmp"
SHELL="/bin/bash"
USE="amd64 apache2 bzip2 caps cet cgi crypt ctype curl curlwrappers gdbm gif glibc-omitfp iconv imap jpeg json libtirpc maildir mhash multilib mysql ncurses nls nptl nptlonly openmp pam pcre php png readline seccomp soap split-usr sqlite ssl test-rust tiff truetype unicode usb xattr xml xml2 xxhash zlib zstd" ABI_X86="64" ADA_TARGET="gcc_12" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 ntrip navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-3" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12" RUBY_TARGETS="ruby31 ruby32" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS

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

net-analyzer/mrtg-2.17.10::gentoo was built with the following:
USE="(-selinux)" ABI_X86="(64)"
Comment 1 Byron Stanoszek 2024-07-18 00:55:51 UTC
Created attachment 897909 [details, diff]
Patch to fix configure