While compiling audacity-2.4.2-r3 via clang it meeps failing at [661/896] the workaround for now was to use gcc. USE Flags for audacity: alsa flac ladspa lv2 mad ogg portmixer vorbis -audiocom -doc -ffmpeg -id3tag -mpg123 -opus -sbsms -twolame -vamp -wavpack Steps to reproduce: 1. Use clang to build Audacity # emerge --info Portage 3.0.45.3 (python 3.11.3-final-0, default/linux/amd64/17.1/desktop/systemd/merged-usr, gcc-12, glibc-2.36-r8, 6.1.31-aurora x86_64) ================================================================= System uname: Linux-6.1.31-aurora-x86_64-AMD_Ryzen_5_4600H_with_Radeon_Graphics-with-glibc2.36 KiB Mem: 7473956 total, 808676 free KiB Swap: 33554428 total, 33269416 free Timestamp of repository gentoo: Mon, 12 Jun 2023 15:30:01 +0000 Head commit of repository gentoo: 64443a5b3e2f3226afa4ad54ee19a83dd9a12f14 Timestamp of repository guru: Mon, 12 Jun 2023 20:31:59 +0000 Head commit of repository guru: c4e75b04ac10b5779d06c0fe196fb7475e02c178 Timestamp of repository steam-overlay: Sat, 10 Jun 2023 10:33:41 +0000 Head commit of repository steam-overlay: e7211fbc19bd4c8e0b6e240eda670a010576f45d sh bash 5.1_p16-r4 ld GNU ld (Gentoo 2.39 p6) 2.39.0 app-misc/pax-utils: 1.3.5::gentoo app-shells/bash: 5.1_p16-r4::gentoo dev-lang/perl: 5.36.0-r2::gentoo dev-lang/python: 3.11.3::gentoo dev-lang/rust-bin: 1.69.0::gentoo dev-util/cmake: 3.26.3::gentoo dev-util/meson: 1.1.1::gentoo sys-apps/baselayout: 2.13-r1::gentoo sys-apps/sandbox: 2.29::gentoo sys-apps/systemd: 253.3-r1::gentoo sys-devel/autoconf: 2.71-r5::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.39-r5::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/clang: 15.0.7-r1::gentoo sys-devel/gcc: 12.2.1_p20230428-r1::gentoo sys-devel/gcc-config: 2.10::gentoo sys-devel/libtool: 2.4.7-r1::gentoo sys-devel/lld: 15.0.7::gentoo sys-devel/llvm: 15.0.7-r3::gentoo sys-devel/make: 4.4.1-r1::gentoo sys-kernel/linux-headers: 6.1::gentoo (virtual/os-headers) sys-libs/glibc: 2.36-r8::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: priority: -1000 volatile: False sync-rsync-verify-metamanifest: yes sync-rsync-verify-jobs: 1 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 guru location: /var/db/repos/guru sync-type: git sync-uri: masters: gentoo volatile: False steam-overlay location: /var/db/repos/steam-overlay sync-type: git sync-uri: masters: gentoo volatile: False ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" AR="llvm-ar" CBUILD="x86_64-pc-linux-gnu" CC="clang" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /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/sandbox.d" CXX="clang++" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/var/cache/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="-march=native -O2 -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-march=native -O2 -pipe" GENTOO_MIRRORS="" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind -Wl,--as-needed" LEX="flex" MAKEOPTS="-j12" NM="llvm-nm" OBJCOPY="llvm-objcopy" OBJDUMP="llvm-objdump" PKGDIR="/var/cache/binpkgs" 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 --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" RANLIB="llvm-ranlib" SHELL="/bin/bash" USE="X a52 aac acl acpi alsa amd64 bluetooth branding bzip2 cairo cdda cdr clang cli crypt cups dbus dri dts dvd dvdr encode exif flac fortran gdbm gif gpm gtk gui iconv icu ipv6 jpeg lcms libnotify libtirpc mad mng mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp pam pango pcre pdf png policykit ppds pulseaudio qt5 readline sdl seccomp sound spell ssl startup-notification svg systemd test-rust tiff truetype udev udisks unicode upower usb vorbis vulkan wayland wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="64" ADA_TARGET="gnat_2021" 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="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" RUBY_TARGETS="ruby30 ruby31" VIDEO_CARDS="amdgpu radeonsi nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: ADDR2LINE, ARFLAGS, AS, ASFLAGS, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS
Created attachment 863774 [details] build log
/var/tmp/portage/media-sound/audacity-3.2.5-r1/work/audacity-Audacity-3.2.5/src/effects/RealtimeEffectState.cpp:307:22: error: no viable constructor or deduction guide for deduction of template arguments of 'owner_less' auto less = std::owner_less{}; ^ /usr/lib/gcc/x86_64-pc-linux-gnu/12/include/g++-v12/bits/shared_ptr_base.h:401:12: note: candidate template ignored: couldn't infer template argument '_Tp' struct owner_less; ^ /usr/lib/gcc/x86_64-pc-linux-gnu/12/include/g++-v12/bits/shared_ptr_base.h:401:12: note: candidate function template not viable: requires 1 argument, but 0 were provided 1 error generated.
Created attachment 872220 [details, diff] patch Hi there, this patch ought to resolve this issue. Some notes: - it's prefixed with audacity-3.3.3 because the issue is still present in the 3.3.3 version. - tested with clang-16.0.6 in a libstdc++ environment. - played around a bit with Realtime Effects to confirm it's working OK. - the patch from 915041 is still required for a successful build.
clang-lld_tinderbox has reproduced this issue with version 3.3.3 - Updating summary.
I can confirm this issue in clang lld as of 2024-03-21
