On a musl/clang system, the python configure stage bails with: checking whether float word ordering is bigendian... unknown configure: error: Unknown float word ordering. You need to manually preset ax_cv_c_float_words_bigendian=no (or yes) according to your system. Both =dev-lang/python-3.8.8 and =dev-lang/python-3.9.2 return this. Reproducible: Always
Created attachment 697173 [details] build.log
Just tried this without the -flto=thin option and the check returns a no.
emerge --info is required on all bug reports so a developer can attempt to duplicate the issue to resolve it. LTO is not supported by the musl team at this time.
I am now facing this for some reason. Clang build: emerge --info Portage 3.0.30 (python 3.9.9-final-0, default/linux/amd64/17.1/desktop, gcc-11.2.1, glibc-2.34-r6, 5.15.12-gentoo x86_64) ================================================================= System uname: Linux-5.15.12-gentoo-x86_64-AMD_Ryzen_5_1600_Six-Core_Processor-with-glibc2.34 KiB Mem: 32899188 total, 18358968 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Sun, 16 Jan 2022 11:36:49 +0000 Head commit of repository gentoo: 9d4b16d547641763d7464a446bfe6289f87a4532 sh bash 5.1_p16 ld GNU ld (Gentoo 2.37_p1 p1) 2.37 app-misc/pax-utils: 1.3.3::gentoo app-shells/bash: 5.1_p16::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.34.0-r6::gentoo dev-lang/python: 3.9.9-r1::gentoo, 3.10.1-r3::gentoo dev-lang/rust: 1.58.0::gentoo dev-util/cmake: 3.22.1::gentoo dev-util/meson: 0.60.3::gentoo sys-apps/baselayout: 2.8::gentoo sys-apps/openrc: 0.44.10::gentoo sys-apps/sandbox: 2.29::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.71-r1::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.37_p1-r1::gentoo sys-devel/binutils-config: 5.4::gentoo sys-devel/clang: 13.0.0::gentoo sys-devel/gcc: 11.2.1_p20211127::gentoo sys-devel/gcc-config: 2.5-r1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/lld: 13.0.0::gentoo sys-devel/llvm: 13.0.0::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.16::gentoo (virtual/os-headers) sys-libs/glibc: 2.34-r6::gentoo sys-libs/libselinux: 3.3::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-git-verify-commit-signature: true local location: /var/db/repos/local masters: gentoo ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="@FREE" AR="llvm-ar" CBUILD="x86_64-pc-linux-gnu" CC="clang" CFLAGS="-O3 -pipe -march=native -mtune=native -fPIC -fstack-protector-strong -D_FORTIFY_SOURCE=2 -flto=thin" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /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/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXX="clang++" CXXFLAGS="-O3 -pipe -march=native -mtune=native -fPIC -fstack-protector-strong -D_FORTIFY_SOURCE=2 -flto=thin" DISTDIR="/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--jobs=5 --load-average=5.0 --with-bdeps y" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY 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" FCFLAGS="-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 metadata-transfer 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="-O2 -pipe" GENTOO_MIRRORS="http://mirror.bytemark.co.uk/gentoo/ http://www.mirrorservice.org/sites/distfiles.gentoo.org/" LANG="en_GB.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind" LINGUAS="en en_GB uk" MAKEOPTS="-j10" NM="llvm-nm" 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 aiglx alsa amd64 bash-completion binddist branding bzip2 cairo cblas-external cdda cdr clang cleartype cli corefonts crypt dri dts elogind encode eselect-ldso evdev exif ffmpeg flac fortran gcc64 gdbm gegl gif gles2 gpm graphite gstreamer gtk gui iconv icu imlib introspection ipv6 java jpeg lcms libglvnd libnotify libtirpc lto mad mng mp3 mp4 mpeg multilib ncurses nls nptl nptlonly nsplugin ogg opengl openmp oss pam pango pcre pdf pgo png ppds pulseaudio python qt5 readline samba screencast sdl seatd seccomp smbclient spell split-usr ssl startup-notification svg threads tiff truetype type1 udev udisks unicode upower usb vorbis wayland webkit wxwidgets x264 xattr xcb xml xulrunner xv xvid zlib" ABI_X86="64 32" ADA_TARGET="gnat_2020" 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="f16c mmx mmxext popcnt sse sse2 sse3 sse4a ssse avx sse4_2 sse4_1 ssse3" CURL_SSL="gnutls" 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 efi-32" INPUT_DEVICES="keyboard mouse libinput" KERNEL="linux" L10N="en en-GB" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="AMDGPU" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-3 php7-4" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" RUBY_TARGETS="ruby26 ruby27" USERLAND="GNU" VIDEO_CARDS="vesa amdgpu radeonsi" 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, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LEX, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS
It's because the configure script does some nasty detection, you need to use USE=lto instead on Python. I may add a filter or something actually.
