This was reported by someone else with 6.6.0, but that bug was closed: https://bugs.gentoo.org/show_bug.cgi?id=915953 I've not tried to rebuild yet, but from reading that it smells like a race condition. Jiggabyte /var/tmp/portage/dev-qt/qtwebengine-6.6.1 # find . -iname 'qtwebenginecoreglobal_p.h' ./work/qtwebengine-everywhere-src-6.6.1/src/core/api/qtwebenginecoreglobal_p.h Reproducible: Didn't try Steps to Reproduce: The exact command I ran was: emerge -va krita qgis xv digikam okteta okular gwenview yt-dlp pylint cool-retro-term app-portage/portpeek net-misc/gallery-dl app-portage/overlint dev-python/html2text media-gfx/ueberzug dev-util/android-tools calibre kpat Actual Results: FAILED: obj/QtWebEngineCore/authentication_dialog_controller.o /usr/bin/x86_64-pc-linux-gnu-g++ -MMD -MF obj/QtWebEngineCore/authentication_dialog_controller.o.d -DCHROMIUM_VERSION=112.0.5615.213 -DUSE_UDEV -DUSE_AURA=1 -DUSE_OZONE=1 -DOFFICIAL_BUILD -DTOOLKIT_QT -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNO_UNWIND_TABLES -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DQT_NO_KEYWORDS -DQT_USE_QSTRINGBUILDER -DQTWEBENGINECORE_VERSION_STR=6.6.1 -DQTWEBENGINEPROCESS_NAME=QtWebEngineProcess -DBUILDING_CHROMIUM -DQ_FORWARD_DECLARE_OBJC_CLASS=QT_FORWARD_DECLARE_CLASS -DQT_NO_AS_CONST=1 -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_DEPRECATED_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_WEBENGINECORE_LIB -DQT_DISABLE_DEPRECATED_UP_TO=0x050000 -DQT_WARN_DEPRECATED_UP_TO=0x070000 -DQT_NO_EXCEPTIONS -DQT_CORE_LIB -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_QUICK_LIB -DQT_QML_LIB -DQT_QMLINTEGRATION_LIB -DQT_QMLMODELS_LIB -DQT_OPENGL_LIB -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_AS_CONST -DQT_NO_QEXCHANGE -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_WEBCHANNEL_LIB -DLIBYUV_DISABLE_NEON -DVK_USE_PLATFORM_XCB_KHR -DGL_GLEXT_PROTOTYPES -DUSE_GLX -DUSE_EGL -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DGOOGLE_PROTOBUF_INTERNAL_DONATE_STEAL_INLINE=0 -DHAVE_PTHREAD -DUSING_SYSTEM_ICU=1 -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC -DSK_CODEC_DECODES_PNG -DSK_CODEC_DECODES_WEBP -DSK_ENCODE_PNG -DSK_ENCODE_WEBP -DSK_ENABLE_SKSL -DSK_UNTIL_CRBUG_1187654_IS_FIXED -DSK_USER_CONFIG_HEADER=\"../../skia/config/SkUserConfig.h\" -DSK_WIN_FONTMGR_NO_SIMULATIONS -DSK_GL -DSK_CODEC_DECODES_JPEG -DSK_ENCODE_JPEG -DSK_HAS_WUFFS_LIBRARY -DSK_VULKAN=1 -DSK_SUPPORT_GPU=1 -DSK_GPU_WORKAROUNDS_HEADER=\"gpu/config/gpu_driver_bug_workaround_autogen.h\" -DV8_USE_EXTERNAL_STARTUP_DATA -DWEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS=0 -DWEBRTC_CHROMIUM_BUILD -DWEBRTC_POSIX -DWEBRTC_LINUX -DABSL_ALLOCATOR_NOTHROW=1 -DWEBRTC_USE_X11 -DWEBRTC_USE_PIPEWIRE -DWEBRTC_USE_GIO -DLOGGING_INSIDE_WEBRTC -DLEVELDB_PLATFORM_CHROMIUM=1 -DCRASHPAD_ZLIB_SOURCE_EXTERNAL -DUSE_SYSTEM_ZLIB=1 -DV8_COMPRESS_POINTERS -DV8_COMPRESS_POINTERS_IN_SHARED_CAGE -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_ENABLE_SANDBOX -DV8_DEPRECATION_WARNINGS -DCPPGC_CAGED_HEAP -DCPPGC_YOUNG_GENERATION -DCPPGC_POINTER_COMPRESSION -DCPPGC_SLIM_WRITE_BARRIER -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/skia/config -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/boringssl/src/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/skia/include/core -Igen -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/include -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/include/QtWebEngineCore -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1/src/core/api -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/src/core/api -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/include/QtWebEngineCore/6.6.1 -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/include/QtWebEngineCore/6.6.1/QtWebEngineCore -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/src/core/api/WebEngineCore_autogen/include -I/var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1/src/core -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/abseil-cpp -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/perfetto/include -Igen/third_party/perfetto -Igen/third_party/perfetto/build_config -I/usr/include/qt6/QtCore -I/usr/include/qt6 -I/usr/lib64/qt6/mkspecs/linux-g++ -I/usr/include/qt6/QtGui -I/usr/include -I/usr/include/qt6/QtNetwork -I/usr/include/qt6/QtQuick -I/usr/include/qt6/QtQml -I/usr/include/qt6/QtQmlIntegration -I/usr/include/qt6/QtQmlModels -I/usr/include/qt6/QtOpenGL -I/usr/include/qt6/QtCore/6.6.1 -I/usr/include/qt6/QtCore/6.6.1/QtCore -I/usr/include/qt6/QtGui/6.6.1 -I/usr/include/qt6/QtGui/6.6.1/QtGui -I/usr/include/qt6/QtQuick/6.6.1 -I/usr/include/qt6/QtQuick/6.6.1/QtQuick -I/usr/include/qt6/QtQmlModels/6.6.1 -I/usr/include/qt6/QtQmlModels/6.6.1/QtQmlModels -I/usr/include/qt6/QtQml/6.6.1 -I/usr/include/qt6/QtQml/6.6.1/QtQml -I/usr/include/qt6/QtWebChannel -Igen/.moc -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/libyuv/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/jsoncpp/source/include -Igen/third_party/dawn/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/dawn/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/khronos -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/gpu -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/vulkan-deps/vulkan-headers/src/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/protobuf/src -Igen/protoc_out -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/ipcz/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/ced/src -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/skia -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/wuffs/src/release/c -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/vulkan/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/net/third_party/quiche/overrides -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/net/third_party/quiche/src/quiche/common/platform/default -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/net/third_party/quiche/src -Igen/net/third_party/quiche/src -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/webrtc_overrides -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/webrtc -Igen/third_party/webrtc -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/libwebm/source -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/mesa_headers -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/leveldatabase -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/leveldatabase/src -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/leveldatabase/src/include -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/crashpad/crashpad -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/linux -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/non_win -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/libaom/source/libaom -I../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/v8/include -Igen/v8/include -march=native -O2 -mno-avx2 -Wall -Wno-unused-local-typedefs -Wno-maybe-uninitialized -Wno-deprecated-declarations -fno-delete-null-pointer-checks -Wno-comments -Wno-packed-not-aligned -Wno-dangling-else -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -fno-ident -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -Wno-unknown-pragmas -Wno-address -Wno-parentheses -Wno-sign-compare -Wno-stringop-overflow -Wno-stringop-overread -Wno-psabi -Wno-multichar -Wno-format-zero-length -fno-unwind-tables -fno-asynchronous-unwind-tables -fPIC -pipe -pthread -m64 -msse3 -fno-omit-frame-pointer -fvisibility=hidden -Wall -Wextra -fno-exceptions -Wno-unused-parameter -Wno-expansion-to-defined -Wno-packed-not-aligned -fPIC -I/usr/include/nss -I/usr/include/nspr -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/lib64/libffi/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -Wno-narrowing -Wno-class-memaccess -Wno-attributes -Wno-class-memaccess -Wno-subobject-linkage -Wno-invalid-offsetof -Wno-return-type -Wno-deprecated-copy -Wno-deprecated-copy -Wno-expansion-to-defined -std=gnu++20 -fno-exceptions -fno-rtti -fvisibility-inlines-hidden -std=c++20 -Wno-ignored-qualifiers -Wall -Wextra -fno-exceptions -Wno-unused-parameter -Wno-expansion-to-defined -Wno-packed-not-aligned -fPIC -Wsuggest-override -c /var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1/src/core/authentication_dialog_controller.cpp -o obj/QtWebEngineCore/authentication_dialog_controller.o In file included from /var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1/src/core/authentication_dialog_controller.cpp:4: /var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1/src/core/authentication_dialog_controller.h:18:10: fatal error: QtWebEngineCore/private/qtwebenginecoreglobal_p.h: No such file or directory 18 | #include <QtWebEngineCore/private/qtwebenginecoreglobal_p.h> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated.
# emerge --info Portage 3.0.59 (python 3.11.7-final-0, default/linux/amd64/17.1/desktop/plasma, gcc-13, glibc-2.38-r9, 5.15.16-gentoo-dist x86_64) ================================================================= System uname: Linux-5.15.16-gentoo-dist-x86_64-AMD_FX-tm-8320_Eight-Core_Processor-with-glibc2.38 KiB Mem: 19444468 total, 7309780 free KiB Swap: 32766972 total, 32579780 free Timestamp of repository gentoo: Sun, 07 Jan 2024 20:30:01 +0000 Head commit of repository gentoo: 14a5ea83dc1d79ca035dd60c2f4e0aad67075016 Timestamp of repository viperML-overlay: Wed, 10 May 2023 18:19:06 +0000 Head commit of repository viperML-overlay: 2cdb8dcc3574519bf6daefa0cf3c9b15864b9cf5 sh bash 5.1_p16-r6 ld GNU ld (Gentoo 2.41 p4) 2.41.0 app-misc/pax-utils: 1.3.5::gentoo app-shells/bash: 5.1_p16-r6::gentoo dev-java/java-config: 2.3.3-r1::gentoo dev-lang/perl: 5.38.2-r1::gentoo dev-lang/python: 3.11.7::gentoo, 3.12.1::gentoo dev-lang/rust-bin: 1.71.1::gentoo dev-util/cmake: 3.27.9::gentoo dev-util/meson: 1.3.0-r2::gentoo sys-apps/baselayout: 2.14-r1::gentoo sys-apps/openrc: 0.48::gentoo sys-apps/sandbox: 2.38::gentoo sys-devel/autoconf: 2.71-r6::gentoo sys-devel/automake: 1.16.5-r1::gentoo sys-devel/binutils: 2.41-r3::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/gcc: 13.2.1_p20230826::gentoo sys-devel/gcc-config: 2.11::gentoo sys-devel/libtool: 2.4.7-r1::gentoo sys-devel/llvm: 16.0.6::gentoo sys-devel/make: 4.4.1-r1::gentoo sys-kernel/linux-headers: 6.1::gentoo (virtual/os-headers) sys-libs/glibc: 2.38-r9::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 volatile: False sync-rsync-verify-metamanifest: yes sync-rsync-verify-max-age: 24 sync-rsync-extra-opts: sync-rsync-verify-jobs: 1 viperML-overlay location: /var/db/repos/viperML-overlay sync-type: git sync-uri: https://github.com/gentoo-mirror/viperML-overlay.git masters: gentoo volatile: False Binary Repositories: binhost priority: 9999 sync-uri: https://mirrors.mit.edu/gentoo-distfiles/releases/amd64/binpackages/17.1/x86-64 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -ggdb -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/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 -ggdb -pipe" DISTDIR="/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--jobs --load-average=8 --getbinpkg" 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 -ggdb -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-request-signature buildpkg buildpkg-live compressdebug config-protect-if-modified distlocks downgrade-backup ebuild-locks fixlafiles installsources ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict unknown-features-warn unmerge-backup unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-march=native -O2 -ggdb -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LEX="flex" LINGUAS="en en_US" MAKEOPTS="-j 5 -l 4" 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" SHELL="/bin/bash" USE="7zip X a52 aac acl acpi activities alsa amd64 audiofile bluetooth branding bzip2 cairo cdda cdr cli colorpicker crypt css cups curl dbus declarative dri dssi dts dv dvd dvdr elogind encode exif fbcon ffmpeg fftw fits flac fontconfig fortran ftp gdbm gif gimp gopher gpm graphviz gstreamer gtk gui iconv icu imagemagick ipv6 jack jpeg kde kdesu kwallet ladspa lastfm lcms libnotify libtirpc lm-sensors lv2 mad man mng moodbar mp3 mp4 mpeg multilib musepack ncurses nfs nls nptl ogg old-kernel opengl openmp opus pam pango pcre pdf phonon pipewire plasma png policykit postgres ppds qml qt5 rar raw readline rubberband samba scanner screencast sdl seccomp sound sox spell split-usr sqlite ssl startup-notification svg test-rust theora tiff truetype udev udisks unicode upower usb vamp vlc vorbis vst vulkan wavpack wayland widgets 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_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 fma3 fma4 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 xop" 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="evdev" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-1" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" RUBY_TARGETS="ruby31" VIDEO_CARDS="radeon radeonsi r600" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account" 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_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS
Created attachment 881792 [details] /var/tmp/portage/dev-qt/qtwebengine-6.6.1/temp/build.log xzcat it
I've seen like 3 or 4 users run into this so far (somewhat rare), does sound like a race condition but no idea. This header seems to be handled the same as the rest and ultimately should be found at: /var/tmp/portage/dev-qt/qtwebengine-6.6.1/work/qtwebengine-everywhere-src-6.6.1_build/include/QtWebEngineCore/6.6.1/QtWebEngineCore/private/qtwebenginecoreglobal_p.h (it's a placeholder to find the header even if not installed, it #include the real header) I did see one user claim they hit the error with MAKEOPTS=-j1 which could indicate something else happened, but I never seen the full build.log to confirm that. It eventually worked again when they tried again and moved on. Back in bug #915953 that you noted I thought pdfium was suspicious but other cases (here included) were not enabling it, so can rule that out. Never been able to reproduce myself so far.
There's been similar sounding bugs upstream, but didn't really go anywhere -- e.g. for a few: https://bugreports.qt.io/browse/QTBUG-101023 https://bugreports.qt.io/browse/QTBUG-107169 (duplicate of an unrelated sounding bug?) https://bugreports.qt.io/browse/QTBUG-94343 (this one apparently didn't pass the -I but should be fixed?)
Anyhow, do suspect it will work if try again. May want to changeup the -jX value to reduce odds of hitting the same pattern. Fixes welcome or asking upstream if anyone want to pursue this further.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2e0505f87184b97e3eeb1621171beda057b5ba9c commit 2e0505f87184b97e3eeb1621171beda057b5ba9c Author: Ionen Wolkens <ionen@gentoo.org> AuthorDate: 2024-01-10 08:35:38 +0000 Commit: Ionen Wolkens <ionen@gentoo.org> CommitDate: 2024-01-10 09:08:21 +0000 dev-qt/qtwebengine: tentatively work around race condition (qt6) Unknown if this really helps, depend on if the file was missing or if it was just failing to find where it is with bad include search -- but given it is generated good odds it is the former. Have not actually reproduced myself and it is possible another target also needs to be run, could potentially fail differently if that does not resolve it (forcing -j1 is of course out of the question for this package). Needs a proper investigation/fix, but given this tend to fail very late in the build it is not obvious and ccache likely makes it harder to fail. Does not help that these rules are created through several Qt cmake wrapper functions (the sync headers bits come from qtbase cmake files, not from here). May tentatively try to remove in a somewhat-distant future to see if it is still an issue, and/or when related-sounding fixes occurred in qtbase or qtwebengine. Closes: https://bugs.gentoo.org/915953 Closes: https://bugs.gentoo.org/921680 Signed-off-by: Ionen Wolkens <ionen@gentoo.org> dev-qt/qtwebengine/qtwebengine-6.6.1.ebuild | 7 +++++++ dev-qt/qtwebengine/qtwebengine-6.6.9999.ebuild | 7 +++++++ dev-qt/qtwebengine/qtwebengine-6.7.9999.ebuild | 7 +++++++ dev-qt/qtwebengine/qtwebengine-6.9999.ebuild | 7 +++++++ 4 files changed, 28 insertions(+)