Currently, on my system net-libs/webkit-gtk-2.4.11-r200 cannot compile. It fails with two errors, which are variants on the same issue; conversion between UChar* and JSChar*. These are both 16-bit types, but one is the new c++11 char16_t, and the other is a typedef to an unsigned short. UChar is defined differently in the umachine.h installed by dev-libs/icu-60.2 than the in source version of the icu library. Perhaps the build should/could be patched such that the in source version of icu is found first? Reproducible: Always emerge --info Portage 2.3.13 (python 3.5.4-final-0, default/linux/amd64/17.0/desktop/plasma, gcc-6.4.0, glibc-2.25-r9, 4.12.14-gentoo x86_64) ================================================================= System uname: Linux-4.12.14-gentoo-x86_64-Intel-R-_Core-TM-_i7-4800MQ_CPU_@_2.70GHz-with-gentoo-2.4.1 KiB Mem: 16419180 total, 10547984 free KiB Swap: 16777212 total, 16777212 free Timestamp of repository gentoo: Tue, 19 Dec 2017 22:00:01 +0000 Head commit of repository gentoo: 220b539b6c9b45ab4790003a634c7963028a3e25 sh bash 4.3_p48-r1 ld GNU ld (Gentoo 2.29.1 p3) 2.29.1 app-shells/bash: 4.3_p48-r1::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.3::gentoo dev-lang/python: 2.7.14-r1::gentoo, 3.5.4-r1::gentoo, 3.6.3-r1::gentoo dev-util/cmake: 3.8.2::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.4.1-r2::gentoo sys-apps/openrc: 0.34.11::gentoo sys-apps/sandbox: 2.10-r4::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r2::gentoo, 1.15.1-r1::gentoo sys-devel/binutils: 2.29.1-r1::gentoo sys-devel/gcc: 6.4.0::gentoo, 7.2.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1::gentoo sys-kernel/linux-headers: 4.12::gentoo (virtual/os-headers) sys-libs/glibc: 2.25-r9::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-extra-opts: gentoo-overlay location: /home/eteran/projects/gentoo-overlay masters: gentoo priority: 0 vmware location: /var/lib/layman/vmware masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -finline-functions -pipe -ggdb" 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/php/apache2-php7.0/ext-active/ /etc/php/apache2-php7.1/ext-active/ /etc/php/cgi-php7.0/ext-active/ /etc/php/cgi-php7.1/ext-active/ /etc/php/cli-php7.0/ext-active/ /etc/php/cli-php7.1/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -finline-functions -pipe -ggdb" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs collision-protect compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" 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 a52 aac acl acpi activities alsa amd64 android apache2 berkdb bluetooth branding bzip2 cairo cdda cdr clang clangcodemodel clangstaticanalyzer cli cmake consolekit cracklib crypt cups curl cxx dbus debugger declarative designer dri dts dvd dvdr emboss encode exif extra fam farstream firefox flac fontconfig fuse gd gdbm gif git glamor gold gpg gpm graphics graphite graphviz gtk hangouts hidpi highlight iconv icu ipv6 jit jpeg json kde kipi kwallet lcms ldap libkms libnotify lldb mad mng modules mp3 mp4 mpeg mtp mudflap multilib mysql mysqli nat ncurses networkmanager nls nptl ntfs ogg opencl opengl openmp pam pango pci pcre pdf pdo phonon plasma png policykit postproc ppds printsupport pulseaudio python qml qt3support qt5 readline resolvconf samba script sdl seccomp semantic-desktop session smbclient spell sql sqlite ssh ssl startup-notification subversion svg taglib tcpd threads thumbnail tiff tools touchpad truetype udev udisks unicode upower usb utils v4l v4l2 valgrind vmware-tools vmware_guest_linux vmware_guest_winPreVista vmware_guest_windows vorbis wallpapers webkit wext widgets wifi winbind wxwidgets x264 xattr xcb xcomposite xetex xinerama xml xnest xv xvid zenmap zeroconf zip zlib" ABI_X86="64" 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="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="kexi words flow plan sheets stage tables krita karbon braindump author" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev keyboard mouse synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en-US" LLVM_TARGETS="BPF NVPTX X86" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-0" POSTGRES_TARGETS="postgres9_5" PYTHON_SINGLE_TARGET="python3_5" PYTHON_TARGETS="python2_7 python3_5" QEMU_SOFTMMU_TARGETS="x86_64 i386 arm" QEMU_USER_TARGETS="x86_64 i386 arm" RUBY_TARGETS="ruby22" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
*** This bug has been marked as a duplicate of bug 621532 ***
Created attachment 511046 [details] build log
That was FAST! Sorry that I missed that other bug when looking for this issue.
