Created attachment 897831 [details] build.log This was inspired by a report in #gentoo and I decided to look into it a bit myself given I could reproduce. For me, this fails to build: ``` $ CFLAGS="-O2" LDFLAGS="-Wl,-O1" USE="-* abi_x86_64 amd64 elibc_glibc jpeg kernel_linux motif22-compatibility png unicode xft" CC=clang CXX=clang++ ebuild motif-2.3.8-r5.ebuild clean compile ``` I'll post analysis in a followup comment now, it's pretty weird so far. ``` * abi_x86_64.amd64: running multilib-minimal_abi_src_compile make -j32 -l32 -C tools/wml CC=clang LIBS=-lfl wmluiltok make: Entering directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' /bin/sh /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/ylwrap /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l lex.yy.c wmluiltok.c -- reflex make: Leaving directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' make: Entering directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' clang -DHAVE_CONFIG_H -I. -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml -I../../include -I../../lib/Xm -I../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -c -o wmluiltok.o wmluiltok.c /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:106:17: warning: passing arguments to 'add_token' without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype] 106 | add_token (&temp); | ^ /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:175:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype] 175 | add_token (t) /* keep sorted by name */ | ^ /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:84:6: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C23, conflicting with a subsequent definition [-Wdeprecated-non-prototype] 84 | void add_token (); | ^ 3 warnings generated. make: Leaving directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' make: Entering directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' /bin/sh ../../libtool --tag=CC --mode=link clang -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lfl libtool: link: clang -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lfl ld.lld: error: undefined symbol: main >>> referenced by /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/Scrt1.o:(_start) clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [Makefile:498: wmluiltok] Error 1 make: Leaving directory '/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml' * ERROR: x11-libs/motif-2.3.8-r5::gentoo failed (compile phase): * emake failed ``` ---- $ emerge --info Portage 3.0.65-9+gea04a583f-dirty (python 3.13.0-beta-3, default/linux/amd64/23.0/hardened, gcc-15, glibc-9999, 6.6.40 x86_64) ================================================================= System uname: Linux-6.6.40-x86_64-AMD_Ryzen_9_3950X_16-Core_Processor-with-glibc2.39.9000 KiB Mem: 65742512 total, 3109612 free KiB Swap: 16662520 total, 16662520 free Timestamp of repository gentoo: Wed, 17 Jul 2024 01:19:10 +0000 Head commit of repository gentoo: 483119e387fb818882c030bf8b6f5ba0cd514ce1 Timestamp of repository kde: Sat, 13 Jul 2024 22:03:52 +0000 Head commit of repository kde: beeb87ba18fb5fbc105bc340b636a7b041a1984c Timestamp of repository qt: Fri, 12 Jul 2024 15:33:40 +0000 Head commit of repository qt: b1a94224bf1a3c60409d9d0edc8a5a66809ab58c Timestamp of repository sam_c: Fri, 12 Jul 2024 17:48:59 +0000 Head commit of repository sam_c: 33d82047e00389d9f5d5413990bb56be35e1f625 sh dash 0.5.12 ld GNU ld (Gentoo 9999 p1) 2.42.50.20240712 ccache version 4.10.1 [disabled] app-misc/pax-utils: 1.3.7::gentoo app-shells/bash: 5.3_alpha_p20240711::gentoo dev-build/autoconf: 2.13-r8::gentoo, 2.69-r9::gentoo, 2.72-r1::gentoo, 9999::gentoo dev-build/automake: 1.16.5-r2::gentoo, 1.17-r1::gentoo dev-build/cmake: 3.30.0::gentoo dev-build/libtool: 2.5.0::gentoo dev-build/make: 4.4.1-r1::gentoo dev-build/meson: 1.5.0::gentoo dev-java/java-config: 2.3.4::gentoo dev-lang/perl: 5.40.0::gentoo dev-lang/python: 3.10.14_p1-r1::gentoo, 3.11.9-r1::gentoo, 3.12.4_p2::gentoo, 3.13.0_beta3_p1::gentoo dev-lang/rust-bin: 1.79.0::gentoo dev-util/ccache: 4.10.1::gentoo sys-apps/baselayout: 2.15::gentoo sys-apps/sandbox: 2.39::gentoo sys-apps/systemd: 256.2::gentoo sys-devel/binutils: 2.38-r2::gentoo, 2.39-r5::gentoo, 2.40-r9::gentoo, 2.41-r5::gentoo, 2.42-r2::gentoo, 9999::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/clang: 17.0.6::gentoo, 18.1.8::gentoo sys-devel/gcc: 10.5.0::gentoo, 11.4.1_p20240712::gentoo, 12.4.1_p20240711::gentoo, 13.3.1_p20240712::gentoo, 14.1.1_p20240713::gentoo, 15.0.9999::gentoo sys-devel/gcc-config: 2.11::gentoo sys-devel/lld: 18.1.8::gentoo sys-devel/llvm: 17.0.6-r2::gentoo, 18.1.8::gentoo sys-kernel/linux-headers: 6.9::gentoo (virtual/os-headers) sys-libs/glibc: 9999::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo.git priority: -1000 eclass-overrides: sam_c volatile: False sync-git-verify-commit-signature: yes sync-git-clone-extra-opts: -b stable -c gc.reflogExpire=0 -c gc.reflogExpireUnreachable=0 -c gc.rerereresolved=0 -c gc.rerereunresolved=0 -c gc.pruneExpire=now crossdev location: /var/db/repos/crossdev masters: gentoo eclass-overrides: sam_c volatile: False kde location: /var/db/repos/kde sync-type: git sync-uri: https://github.com/gentoo-mirror/kde.git masters: gentoo eclass-overrides: sam_c volatile: False local location: /var/db/repos/local masters: gentoo eclass-overrides: sam_c volatile: False qt location: /var/db/repos/qt sync-type: git sync-uri: https://github.com/gentoo-mirror/qt.git masters: gentoo eclass-overrides: sam_c volatile: False sam_c location: /var/db/repos/sam_c sync-type: git sync-uri: https://github.com/gentoo-mirror/sam_c.git masters: gentoo eclass-overrides: sam_c volatile: False Installed sets: @sam-emacs, @sam-fonts, @sam-fortune ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O3 -march=native -mtls-dialect=gnu2 -flto=jobserver -fno-semantic-interposition -pipe -fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never -frecord-gcc-switches -Wa,-O2 -Wa,-mtune=znver2 -Wstrict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch -Werror=strict-aliasing -Werror=odr -Wstrict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch -Werror=strict-aliasing -Werror=odr -Wbuiltin-declaration-mismatch" 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/revdep-rebuild /etc/sandbox.d /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O3 -march=native -mtls-dialect=gnu2 -flto=jobserver -fno-semantic-interposition -pipe -fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never -frecord-gcc-switches -Wa,-O2 -Wa,-mtune=znver2 -Wstrict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch -Werror=strict-aliasing -Werror=odr" DISTDIR="/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--keep-going --with-bdeps=y --complete-graph --deep --dynamic-deps=n --changed-deps=n --usepkg=y --implicit-system-deps=n --usepkg-exclude sys-fs/zfs --usepkg-exclude sys-fs/zfs-kmod --jobs=4 --load-average 32" 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="-O3 -march=native -mtls-dialect=gnu2 -flto=jobserver -fno-semantic-interposition -pipe -fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never -frecord-gcc-switches -Wa,-O2 -Wa,-mtune=znver2 -Wstrict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch -Werror=strict-aliasing -Werror=odr" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg clean-logs config-protect-if-modified distlocks fixlafiles ipc-sandbox merge-wait mount-sandbox multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms split-log strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O3 -march=native -mtls-dialect=gnu2 -flto=jobserver -fno-semantic-interposition -pipe -fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never -frecord-gcc-switches -Wa,-O2 -Wa,-mtune=znver2 -Wstrict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch -Werror=strict-aliasing -Werror=odr" GENTOO_MIRRORS="https://www.mirrorservice.org/sites/distfiles.gentoo.org/ https://mirror.bytemark.co.uk/gentoo/ https://mirrors.soeasyto.com/distfiles.gentoo.org/" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -fdiagnostics-color=always -flto=jobserver -Wl,--defsym=__gentoo_check_ldflags__=0" LEX="reflex" LINGUAS="en en_GB" MAKEOPTS="-j32 -l32" PKGDIR="/var/cache/binpkgs" PORTAGE_BUNZIP2_COMMAND="lbunzip2" PORTAGE_COMPRESS="xz" 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" RUSTFLAGS="-C target-cpu=native -C link-arg=-Wl,-z,pack-relative-relocs" SHELL="/bin/bash" USE="X a52 aac acl acpi activities aes alsa amd64 avx avx2 bash-completion bluetooth branding bzip2 cairo caps cdda cdr clang crypt dbus declarative dist-kernel dri dts dvd dvdr editorconfig emacs encode exif f16c filecaps firewalld flac fma3 freetype gdbm gif gmp gpm graphite gtk gui hardened harfbuzz hunspell iconv icu ipv6 jit jpeg kde kdesu kf6compat kwallet lcms libnotify libtirpc lto mad mmx mmxext mng modules-compress mp3 mp4 mpeg multilib ncurses nftables nls ogg opengl openmp pam pango pclmul pcre pdf pgo pic pie pipewire plasma png policykit popcnt ppds pulseaudio qml qt5 rdrand readline screencast sdl seccomp semantic-desktop sha sound spell sse sse2 sse3 sse4_1 sse4_2 sse4a ssl ssp ssse3 startup-notification svg system-av1 system-binutils system-boost system-bootstrap system-cairo system-clang system-digest system-ffmpeg system-harfbuzz system-heimdal system-icu system-jpeg system-leveldb system-libevent system-libs system-libvpx system-libyaml system-llvm system-lz4 system-mitkrb5 system-sqlite system-ssl system-tbb system-uulib system-webp system-zlib systemd test-rust tiff truetype udev udisks unicode upower usb valgrind verify-sig vorbis vulkan wayland widgets x264 xattr xcb xft xml xtpax xv xvid zlib zsh-completion" ABI_X86="32 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="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a 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" L10N="en en-GB" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="AArch64 AMDGPU ARM AVR BPF Hexagon Lanai MSP430 Mips NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-2" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12 pypy3 python3_10 python3_11 python3_13" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="aarch64 aarch64_be alpha armeb hppa i386 m68k ppc ppc64 ppc64le sparc sparc64 x86_64" RUBY_TARGETS="ruby31 ruby32" VIDEO_CARDS="amdgpu radeonsi radeon" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account" YACC="byacc" Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, SIZE, STRINGS, STRIP, YFLAGS
In /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8-abi_x86_64.amd64/tools/wml, everything is fine with GCC: ``` # make clean rm -rf .libs _libs rm -f UilConst.h UilKeyTab.h UilSymArTa.h UilSymArTy.h UilSymCSet.h UilSymCtl.h UilSymEnum.h UilSymGen.h UilSymNam.h UilSymRArg.h UilSymReas.h UilTokName.h UilUrmClas.h UilSymChCl.h UilSymChTa.h motif.wmd wml.report lex.yy.c libwml.la wml \ *.mm *.sdml *.txt wmlparse.c wmlparse.h wmluiltok wmllex.c \ tokens.dat DONE wmluiltok.c Uil.c Uil.h wml.report UilLexPars.[ch] ylwrap rm -f libwml.la rm -f ./so_locations rm -f wml wmluiltok wmldbcreate test -z "" || rm -f wml wmluiltok wmldbcreate rm -f *.o rm -f *.lo # make LIBS="-lrefl" YACC=byacc LEX=reflex CC="gcc" wmluiltok /bin/sh /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/ylwrap /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l lex.yy.c wmluiltok.c -- reflex gcc -DHAVE_CONFIG_H -I. -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml -I../../include -I../../lib/Xm -I../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -c -o wmluiltok.o wmluiltok.c /bin/sh ../../libtool --tag=CC --mode=link gcc -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lrefl libtool: link: gcc -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lrefl ``` If I run it instead with Clang, I get: ``` # make LIBS="-lrefl" YACC=byacc LEX=reflex CC="clang" wmluiltok /bin/sh /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/ylwrap /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l lex.yy.c wmluiltok.c -- reflex clang -DHAVE_CONFIG_H -I. -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml -I../../include -I../../lib/Xm -I../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../lib -I/var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/../../include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -c -o wmluiltok.o wmluiltok.c /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:106:17: warning: passing arguments to 'add_token' without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype] 106 | add_token (&temp); | ^ /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:175:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype] 175 | add_token (t) /* keep sorted by name */ | ^ /var/tmp/portage/x11-libs/motif-2.3.8-r5/work/motif-2.3.8/tools/wml/wmluiltok.l:84:6: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C23, conflicting with a subsequent definition [-Wdeprecated-non-prototype] 84 | void add_token (); | ^ 3 warnings generated. /bin/sh ../../libtool --tag=CC --mode=link clang -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lrefl libtool: link: clang -O2 -fno-strict-aliasing -Wall -fno-strict-aliasing -Wno-unused -Wno-comment -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -Wl,-O1 -o wmluiltok wmluiltok.o -lrefl ld.lld: error: undefined symbol: main >>> referenced by /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/Scrt1.o:(_start) clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [Makefile:498: wmluiltok] Error 1 mop /var/tmp/portage/x11-libs/motif-2.3.8-r5 ``` What I think is happening is a mix: 1) We shouldn't hardcode LIBS="-fl" in the ebuild, we should use the corresponding library to whatever flex impl is in use, or simply unset LEX and set LEX=flex (this is fine if you choose to do this); 2) It fails with mismatched flex/reflex which provides the missing main(); 3) The situation is made worse if flex or reflex was built with LTO because of bug 926120?
so, TL;DR: * do what I mention in 1) in https://bugs.gentoo.org/936172#c1 to avoid mismatched flex; * can you reproduce with clang but not using LTO? (note that i'm not using LTO for motif here) I might be making some logical jump as it's a bit late, so if it doesn't make sense, I'll revisit tomorrow. Thanks!
I cannot reproduce the problem, neither with gcc nor with clang. "undefined symbol: main" usually indicates that sys-devel/flex was compiled with a different compiler/toolchain or with different CFLAGS. This pretty much looks like a duplicate of bug 592868. (In reply to Sam James from comment #1) > 1) We shouldn't hardcode LIBS="-fl" in the ebuild, we should use the > corresponding library to whatever flex impl is in use, or simply unset LEX > and set LEX=flex (this is fine if you choose to do this); LIBS="-lfl" is needed when compiling for a non-native ABI: https://gitweb.gentoo.org/archive/repo/gentoo-2.git/commit/?id=a1ec0787c36cbe323f6b7a46a81ca0739ac62a63 We could replace it with wmluiltok_LDADD="-lfl" which would be somewhat cleaner. > 2) It fails with mismatched flex/reflex which provides the missing main(); > 3) The situation is made worse if flex or reflex was built with LTO because > of bug 926120? Again, bug 592868 comment #6, i.e. try adding -ffat-lto-objects to flex compilation flags as suggested there.
(In reply to Ulrich Müller from comment #3) > [...] > > (In reply to Sam James from comment #1) > > 1) We shouldn't hardcode LIBS="-fl" in the ebuild, we should use the > > corresponding library to whatever flex impl is in use, or simply unset LEX > > and set LEX=flex (this is fine if you choose to do this); > > LIBS="-lfl" is needed when compiling for a non-native ABI: > https://gitweb.gentoo.org/archive/repo/gentoo-2.git/commit/ > ?id=a1ec0787c36cbe323f6b7a46a81ca0739ac62a63 > > We could replace it with wmluiltok_LDADD="-lfl" which would be somewhat > cleaner. > To be clear, I'm not saying remove LIBS. I'm saying "-lfl" isn't right if configure picks up LEX=reflex. i.e. you either need to make LIBS=... pick the right value for LEX, or just unset LEX / force it to be flex so it matches.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fa118a9c6e00e026170807f7b67415e6ba68967f commit fa118a9c6e00e026170807f7b67415e6ba68967f Author: Ulrich Müller <ulm@gentoo.org> AuthorDate: 2024-07-17 05:36:54 +0000 Commit: Ulrich Müller <ulm@gentoo.org> CommitDate: 2024-07-17 05:38:21 +0000 x11-libs/motif: Try to make linking with libfl.a less brittle Bug: https://bugs.gentoo.org/936172 Signed-off-by: Ulrich Müller <ulm@gentoo.org> x11-libs/motif/motif-2.3.8-r6.ebuild | 124 +++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+)
Thanks! That indeed covers it. The remaining issue is just the LTO static libs thing which is to be handled separately outside of motif.
