qemu fails to build with error message ERROR: C shared library 'fdt' not found It seems like this library is available, but only in 64 bits version # locate libfdt|grep "^/usr/lib" /usr/lib64/libfdt-1.6.0.so /usr/lib64/libfdt.so /usr/lib64/libfdt.so.1 # locate libfdt|grep "^/usr/include" /usr/include/libfdt.h /usr/include/libfdt_env.h Reproducible: Always Steps to Reproduce: emerge =app-emulation/qemu-5.2.0-r1 Actual Results: Build failure with error message Expected Results: Successful build # emerge --info Portage 3.0.13 (python 3.7.9-final-0, default/linux/amd64/17.1, gcc-9.3.0, glibc-2.32-r5, 5.4.80-gentoo-r1-x86_64 x86_64) ================================================================= System uname: Linux-5.4.80-gentoo-r1-x86_64-x86_64-AMD_Phenom-tm-_II_X6_1090T_Processor-with-gentoo-2.7 KiB Mem: 16397748 total, 6252324 free KiB Swap: 16777212 total, 16775164 free Timestamp of repository gentoo: Sat, 23 Jan 2021 01:45:01 +0000 Head commit of repository gentoo: 5d064660eda940769ff8efefc94961d7dca2ba61 sh bash 5.0_p18 ld GNU ld (Gentoo 2.34 p6) 2.34.0 distcc 3.3.3 x86_64-pc-linux-gnu [enabled] app-shells/bash: 5.0_p18::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.30.3::gentoo dev-lang/python: 2.7.18-r5::gentoo, 3.7.9-r1::gentoo, 3.8.6-r1::gentoo, 3.9.1-r1::gentoo dev-util/cmake: 3.17.4-r1::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.7::gentoo sys-apps/openrc: 0.42.1::gentoo sys-apps/sandbox: 2.20::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r5::gentoo sys-devel/automake: 1.16.2-r1::gentoo sys-devel/binutils: 2.34-r2::gentoo sys-devel/gcc: 9.3.0-r2::gentoo sys-devel/gcc-config: 2.3.2-r1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.4-r1::gentoo (virtual/os-headers) sys-libs/glibc: 2.32-r5::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.de.gentoo.org/gentoo-portage/ priority: -1000 sync-rsync-verify-metamanifest: yes sync-rsync-verify-jobs: 1 sync-rsync-verify-max-age: 24 sync-rsync-extra-opts: mbucas location: /data/Code/GitHub/gentoo-overlay masters: gentoo steam-overlay location: /var/lib/layman/steam-overlay masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O3 -pipe -fomit-frame-pointer -march=amdfam10 -mtune=amdfam10 --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=512 -mmmx -m3dnow -msse -msse2 -msse3 -mno-ssse3 -msse4a -mcx16 -msahf -mno-movbe -mno-aes -mno-sha -mno-pclmul -mpopcnt -mabm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-sgx -mno-bmi2 -mno-pconfig -mno-wbnoinvd -mno-tbm -mno-avx -mno-avx2 -mno-sse4.2 -mno-sse4.1 -mlzcnt -mno-rtm -mno-hle -mno-rdrnd -mno-f16c -mno-fsgsbase -mno-rdseed -mprfchw -mno-adx -mfxsr -mno-xsave -mno-xsaveopt -mno-avx512f -mno-avx512er -mno-avx512cd -mno-avx512pf -mno-prefetchwt1 -mno-clflushopt -mno-xsavec -mno-xsaves -mno-avx512dq -mno-avx512bw -mno-avx512vl -mno-avx512ifma -mno-avx512vbmi -mno-avx5124fmaps -mno-avx5124vnniw -mno-clwb -mno-mwaitx -mno-clzero -mno-pku -mno-rdpid -mno-gfni -mno-shstk -mno-avx512vbmi2 -mno-avx512vnni -mno-vaes -mno-vpclmulqdq -mno-avx512bitalg -mno-movdiri -mno-movdir64b -mno-waitpkg -mno-cldemote -mno-ptwrite " CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/spool/munin-async/.ssh" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.4/ext-active/ /etc/php/cgi-php7.4/ext-active/ /etc/php/cli-php7.4/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="-O3 -pipe -fomit-frame-pointer -march=amdfam10 -mtune=amdfam10 --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=512 -mmmx -m3dnow -msse -msse2 -msse3 -mno-ssse3 -msse4a -mcx16 -msahf -mno-movbe -mno-aes -mno-sha -mno-pclmul -mpopcnt -mabm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-sgx -mno-bmi2 -mno-pconfig -mno-wbnoinvd -mno-tbm -mno-avx -mno-avx2 -mno-sse4.2 -mno-sse4.1 -mlzcnt -mno-rtm -mno-hle -mno-rdrnd -mno-f16c -mno-fsgsbase -mno-rdseed -mprfchw -mno-adx -mfxsr -mno-xsave -mno-xsaveopt -mno-avx512f -mno-avx512er -mno-avx512cd -mno-avx512pf -mno-prefetchwt1 -mno-clflushopt -mno-xsavec -mno-xsaves -mno-avx512dq -mno-avx512bw -mno-avx512vl -mno-avx512ifma -mno-avx512vbmi -mno-avx5124fmaps -mno-avx5124vnniw -mno-clwb -mno-mwaitx -mno-clzero -mno-pku -mno-rdpid -mno-gfni -mno-shstk -mno-avx512vbmi2 -mno-avx512vnni -mno-vaes -mno-vpclmulqdq -mno-avx512bitalg -mno-movdiri -mno-movdir64b -mno-waitpkg -mno-cldemote -mno-ptwrite " DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--jobs 10 --load-average 16" 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 config-protect-if-modified distcc 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="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="fr_FR.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="fr" MAKEOPTS="--jobs 60 --load-average 16" PKGDIR="/var/cache/portage/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" USE="X alsa amd64 bash-completion berkdb bzip2 cairo cli crypt dbus dri elogind encode exif ffmpeg flac fontconfig fortran gd gif graphviz gstreamer gtk iconv imlib ipv6 java jpeg kde libglvnd libtirpc lm_sensors mad mng mp3 mpeg multilib mysql ncurses nls nptl nsplugin ogg opengl openmp pam pango pcre perl php png python qt5 quicktime readline samba sdl seccomp spell split-usr sql ssl svg tcpd tiff truetype udev unicode vhosts vorbis xattr xml xpm xv zlib" ABI_X86="64 32" ADA_TARGET="gnat_2018" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_core authn_dbd authn_dbm authn_default authn_file authz_core authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http proxy_html rewrite setenvif slotmem_shm so socache_shmcb speling status unique_id unixd userdir usertrack vhost_alias xml2enc" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="3dnow 3dnowext mmx mmxext popcnt sse sse2 sse3 sse4a" 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" INPUT_DEVICES="libinput" KERNEL="linux" L10N="fr" 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" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python3_7 python3_8 python3_9" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby26" USERLAND="GNU" VIDEO_CARDS="nvidia" 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" Unset: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Created attachment 684246 [details] build.log
I can't reproduce, maybe try without distcc? Otherwise will need to see: /var/tmp/portage/app-emulation/qemu-5.2.0-r1/work/qemu-5.2.0/softmmu-build/meson-logs/meson-log.txt
Created attachment 684315 [details] meson-log.txt Log of the same build than previous "build.log"
Disabling distcc makes the build succeed. It's surprising that previous versions built correctly with distcc. "fdt" isn't a new feature in 5.2.0, it was already enabled in 5.1.0 in USE flags.
qemu upstream semi-migrated to meson, so that it could impact certain things is actually not surprising.
You'll need to debug where distcc interferes. The simplest would be to compare build logs with and without distcc. A few pointers could be: ../meson.build:1248:4: ERROR: C shared library 'fdt' not found ``` fdt = not_found fdt_opt = get_option('fdt') if have_system if fdt_opt in ['enabled', 'auto', 'system'] have_internal = fs.exists(meson.current_source_dir() / 'dtc/libfdt/Makefile.libfdt') fdt = cc.find_library('fdt', static: enable_static, required: fdt_opt == 'system' or fdt_opt == 'enabled' and not have_internal) ``` I think it should just do an -lfdt test, like: ``` $ echo 'int main(){}' | x86_64-pc-linux-gnu-gcc -x c - -o /tmp/fdt-test -lfdt; lddtree /tmp/fdt-test /tmp/fdt-test (interpreter => /lib64/ld-linux-x86-64.so.2) libfdt.so.1 => /usr/lib64/libfdt.so.1 libc.so.6 => /lib64/libc.so.6 ``` You can try to run that manually and wrapped with distcc to see if it works.
Still reproducible?
The current stable version is app-emulation/qemu-6.2.0 I've enabled distcc for this package, and emerge finished successfully. So it seems that the bug has been resolved between version 5.2 and 6.2.
