x86_64-pc-linux-gnu-g++ -DDRIVER_TABLE_FILE=\"/usr/share/cdrdao/drivers\" -march=native -O2 -pipe -ggdb -floop-interchange -floop-strip-mine -floop-block -ftree-loop-distribution -fira-loop-pressure -ftree-vectorize -ftree-loop-linear -flto=5 -fuse-linker-plugin -Wl,-O1 -Wl,--as-needed -march=native -O2 -pipe -ggdb -floop-interchange -floop-strip-mine -floop-block -ftree-loop-distribution -fira-loop-pressure -ftree-vectorize -ftree-loop-linear -flto=5 -fuse-linker-plugin -Wl,-znow -Wl,--sort-common -Wl,--hash-style=gnu -Wl,--enable-new-dtags -o cdrdao main.o ./libdao.a ../paranoia/libcdda_paranoia.a ../trackdb/libtrackdb.a -lmad -lm -lvorbisfile -lao [snip] dao.cc:191: error: undefined reference to 'pthread_sigmask' dao.cc:170: error: undefined reference to 'pthread_sigmask' dao.cc:693: error: undefined reference to 'pthread_create' dao.cc:778: error: undefined reference to 'pthread_join' collect2: error: ld returned 1 exit status Makefile:408: recipe for target 'cdrdao' failed make[2]: *** [cdrdao] Error 1 make[2]: Leaving directory '/home/gentoo/tmp/portage/app-cdr/cdrdao-1.2.3-r1/work/cdrdao-1.2.3/dao' ld.bfd does not show this issue. Following trivial patch fixes the issue with ld.gold: --- a/dao/Makefile.orig 2015-04-28 14:49:51.856665620 +0200 +++ b/dao/Makefile 2015-04-28 14:50:23.653664483 +0200 @@ -322,7 +322,7 @@ cdrdao_LDADD = ./libdao.a $(top_builddir)/paranoia/libcdda_paranoia.a \ $(top_builddir)/trackdb/libtrackdb.a \ - $(am__append_1) $(am__append_2) -lao + $(am__append_1) $(am__append_2) -lao -pthread cdrdao_DEPENDENCIES = \ $(top_builddir)/paranoia/libcdda_paranoia.a \ $(top_builddir)/trackdb/libtrackdb.a \ Portage 2.2.18 (python 3.4.3-final-0, default/linux/amd64/13.0, gcc-5.1.0, glibc-2.20-r2, 4.0.0-HAUIHAU x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.0.0-HAUIHAU-x86_64-Intel-R-_Core-TM-_i7-2620M_CPU_@_2.70GHz-with-gentoo-2.2 KiB Mem: 8101940 total, 2939980 free KiB Swap: 8388604 total, 8388604 free Timestamp of repository gentoo: Tue, 28 Apr 2015 06:00:01 +0000 sh bash 4.3_p33-r2 ld GNU gold (Gentoo 2.25 p1.0 2.25) 1.11 ccache version 3.2.1 [disabled] app-shells/bash: 4.3_p33-r2::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r2::gentoo, 3.4.3::gentoo dev-util/ccache: 3.2.1-r1::gentoo dev-util/cmake: 3.2.1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r1::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25::gentoo sys-devel/gcc: 4.9.2::gentoo, 5.1.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r1::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.0::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 hauihau location: /usr/local/portage/hauihau masters: gentoo priority: 0 x11 location: /var/lib/layman/x11 sync-type: laymansync sync-uri: git://anongit.gentoo.org/proj/x11 masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe -ggdb -floop-interchange -floop-strip-mine -floop-block -ftree-loop-distribution -fira-loop-pressure -ftree-vectorize -ftree-loop-linear -flto=5 -fuse-linker-plugin" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.6/ext-active/ /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 -O2 -pipe -ggdb -floop-interchange -floop-strip-mine -floop-block -ftree-loop-distribution -fira-loop-pressure -ftree-vectorize -ftree-loop-linear -flto=5 -fuse-linker-plugin" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--autounmask=n --keep-going=y --quiet-build=y --quiet-fail=y --with-bdeps=y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs compressdebug config-protect-if-modified distlocks ebuild-locks fakeroot fixlafiles merge-sync metadata-transfer news parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="de_DE.utf8" LC_ALL="de_DE.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -march=native -O2 -pipe -ggdb -floop-interchange -floop-strip-mine -floop-block -ftree-loop-distribution -fira-loop-pressure -ftree-vectorize -ftree-loop-linear -flto=5 -fuse-linker-plugin -Wl,-znow -Wl,--sort-common -Wl,--hash-style=gnu -Wl,--enable-new-dtags" MAKEOPTS="-j5" 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="/home/gentoo/tmp/" USE="X a52 aac aalib acl alsa amd64 apache2 avx bash-completion berkdb bluetooth branding bzip2 cairo caps cdda cddb cdparanoia cdr cli cracklib crypt cups curl cxx dbus dga dri dts dv dvd encode exif ffmpeg flac fontconfig fortran ftp gd gdbm gif gmp gnome gnome-keyring gphoto2 gstreamer gtk iconv icu imagemagick imlib ipv6 jpeg jpeg2k kde lame latex libcaca libnotify libsamplerate lzma lzo mad matroska mmx mmxext mng modemmanager modules mp3 mpeg mtp multilib musepack mysql mysqli ncurses networkmanager nls nptl nsplugin ogg openal opengl openmp pam pcre pdf png policykit postscript pulseaudio qt4 quicktime readline samba session sndfile spell sqlite sse sse2 sse3 sse4 sse4_1 sse4_2 ssl ssse3 svg syslog systemd tcpd theora threads tiff truetype udev unicode usb v4l vaapi vcd vim-syntax vorbis wavpack webkit x264 xattr xcb xcomposite xinerama xml xmp xorg xosd xpm xv xvid zlib" ABI_X86="64" ALSA_CARDS="hda-intel" APACHE2_MODULES="access_compat actions alias auth_basic auth_digest authn_alias authn_anon authn_core authn_dbd authn_dbm authn_file authz_core authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgid dav dav_fs dav_lock dbd deflate dir env expires ext_filter file_cache filter headers ident imagemap include info lbmethod_bybusyness lbmethod_byrequests lbmethod_bytraffic lbmethod_heartbeat log_config log_forensic logio mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_fcgi proxy_ftp proxy_http ratelimit reqtimeout rewrite setenvif slotmem_shm socache_shmcb speling status substitute unique_id unixd userdir usertrack version vhost_alias" APACHE2_MPMS="worker" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="canon" 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" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python3_4" PYTHON_TARGETS="python3_4" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby21" USERLAND="GNU" VIDEO_CARDS="intel i965" 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" USE_PYTHON="3.4" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= app-cdr/cdrdao-1.2.3-r1::gentoo was built with the following: USE="encode mad vorbis -gcdmaster" ABI_X86="64" Reproducible: Always Steps to Reproduce: 1. try to compile app-cdr/cdrdao with ld.gold 2. 3. Actual Results: linking of cdrdao binary failes Expected Results: linking should succeed https://blog.flameeyes.eu/2010/11/it-s-not-all-gold-that-shines-why-underlinking-is-a-bad-thing
Hi Steffen, could you please retry? It works for me, likely as some dependency is pulling in pthreads.
Hi David, I checked again an it still fails. I think it's not good to rely on other packages to include -pthread, as the package uses it it should check and add it on its own. My simple patch still works. Best regards, Steffen
Hi Steffen, I've added AX_PTHREAD to the configure.ac and include PTHREAD_CFLAGS unconditionally in the LIBS. This should hopefully solve the issue, could you give it another go once -r3 trickles down to you? commit 75ec4101484a7b273c2913ab02813d122bdf44c7 Author: David Seifert <soap@gentoo.org> Date: Sat Feb 13 19:11:45 2016 +0100 app-cdr/cdrdao: Link to libpthread unconditionally Gentoo-Bug: 548004, 520988 * EAPI=6 * Use AX_PTHREAD to properly detect pthread flags * Use AM_PROG_AR instead of toolchain-funcs.eclass * Amend patches for -p1 * Fix -Werror=format-security errors
