Engine fails to compile with GCC14 but compiles as expected in GCC13 Steps to reproduce: 1. Add following USE flags to package.use "fluidsynth -fribidi lua mpeg2 sndio speech theora unsupported" 2. emerge -va games-engines/scummvm Error: ./common/singleton.h:44:21: warning: template-id not allowed for constructor in C++20 [-Wtemplate-id-cdtor] 44 | Singleton<T>(const Singleton<T> &); | ^ ./common/singleton.h:44:21: note: remove the ‘< >’ ./common/singleton.h:91:21: warning: template-id not allowed for constructor in C++20 [-Wtemplate-id-cdtor] 91 | Singleton<T>() { } | ^ ./common/singleton.h:91:21: note: remove the ‘< >’ ./common/singleton.h:92:17: warning: template-id not allowed for destructor in C++20 [-Wtemplate-id-cdtor] 92 | virtual ~Singleton<T>() { } | ^ ./common/singleton.h:92:17: note: remove the ‘< >’ In file included from ./engines/icb/debug.h:32: ./engines/icb/common/px_array.h: In member function ‘const Type& ICB::rcActArray<Type>::operator[](uint32) const’: ./engines/icb/common/px_array.h:105:66: error: assignment of member ‘m_userPosition’ in read-only object 105 | ((const rcActArray<Type> *)this)->m_userPosition = n + 1; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ ./engines/icb/common/px_array.h: In member function ‘const Type ICB::rcIntArray<Type>::operator[](uint32) const’: ./engines/icb/common/px_array.h:308:66: error: assignment of member ‘m_userPosition’ in read-only object 308 | ((const rcIntArray<Type> *)this)->m_userPosition = index + 1; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ make: *** [Makefile.common:177: engines/icb/actor.o] Error 1 Emerge info: Portage 3.0.64 (python 3.11.9-final-0, default/linux/amd64/23.0/desktop, gcc-14, glibc-2.39-r6, 6.8.10-gentoo-dist x86_64) ================================================================= System uname: Linux-6.8.10-gentoo-dist-x86_64-AMD_Ryzen_9_5950X_16-Core_Processor-with-glibc2.39 KiB Mem: 65759664 total, 53653784 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Mon, 20 May 2024 14:48:44 +0000 Head commit of repository gentoo: 6b9ca2acb3c7f8e390090f604be8583b95825676 sh bash 5.2_p26-r3 ld GNU ld (Gentoo 2.42 p3) 2.42.0 app-misc/pax-utils: 1.3.7::gentoo app-shells/bash: 5.2_p26-r3::gentoo dev-build/autoconf: 2.13-r8::gentoo, 2.71-r7::gentoo, 2.72-r1::gentoo dev-build/automake: 1.16.5-r2::gentoo dev-build/cmake: 3.29.3::gentoo dev-build/libtool: 2.4.7-r4::gentoo dev-build/make: 4.4.1-r1::gentoo dev-build/meson: 1.4.0-r1::gentoo dev-lang/perl: 5.38.2-r5::gentoo dev-lang/python: 3.11.9::gentoo, 3.12.3::gentoo dev-lang/rust-bin: 1.77.1::gentoo sys-apps/baselayout: 2.15::gentoo sys-apps/openrc: 0.54::gentoo sys-apps/sandbox: 2.38::gentoo sys-devel/binutils: 2.42-r1::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/clang: 17.0.6::gentoo, 18.1.5::gentoo sys-devel/gcc: 12.3.1_p20240502::gentoo, 13.2.1_p20240210::gentoo, 14.1.1_p20240511::gentoo sys-devel/gcc-config: 2.11::gentoo sys-devel/lld: 17.0.6::gentoo, 18.1.5::gentoo sys-devel/llvm: 17.0.6::gentoo, 18.1.5-r1::gentoo sys-kernel/linux-headers: 6.9::gentoo (virtual/os-headers) sys-libs/glibc: 2.39-r6::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo.git priority: -1000 volatile: False local location: /var/db/repos/local masters: gentoo volatile: False Binary Repositories: gentoobinhost priority: 1 sync-uri: https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -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" CXXFLAGS="-O2 -march=native -pipe" DISTDIR="/var/cache/distfiles" 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="-O2 -march=native -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 merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted 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 -march=native -pipe" GENTOO_MIRRORS="https://mirror.bytemark.co.uk/gentoo/ https://mirrors.gethosted.online/gentoo/" LANG="en_GB.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs" LEX="flex" 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="X a52 aac acl acpi alsa amd64 bluetooth branding bzip2 cairo cdda cdr cet crypt dbus dri dts dvd dvdr elogind encode exif flac gdbm gif gpm gtk gui iconv icu ipv6 jpeg lcms libnotify libtirpc lto mad mng mp3 mp4 mpeg multilib ncurses networkmanager nls ogg opengl openmp opus pam pango pcre pdf pgo pipewire png policykit ppds pulseaudio readline sdl seccomp sound spell ssl startup-notification svg test-rust tiff truetype udev udisks unicode upower usb vorbis vulkan webp wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="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="mmx mmxext sse sse2 aes avx avx2 f16c fma3 pclmul popcnt rdrand sha sse3 sse4_1 sse4_2 sse4a ssse3 vpclmulqdq" 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-GB" 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="nvidia" 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, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, MAKEOPTS, 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 893628 [details] GCC14 build log
Confirmed working with the live ebuild version.
(Apologies for using this as a blog while I traced the issue.) The following patch at https://patch-diff.githubusercontent.com/raw/scummvm/scummvm/pull/5655.patch resolves the issue and a PR will follow shortly.
This is resolved in the latest version and solves the gcc-14-stable blocker as this is ~ARCH only.
