OS: 13.0-STABLE stable/13-n244516-a73aaaeb579b

When I enable LTO options, firefox fails build:

/usr/local/bin/clang++11 -std=gnu++17 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -Qunused-arguments -DLIBICONV_PLUG -isystem /usr/local/include -Qunused-arguments -Wall -Wbitfield-enum-conversion -Wempty-body -Wignored-qualifiers -Woverloaded-virtual -Wpointer-arith -Wshadow-field-in-constructor-modified -Wsign-compare -Wtype-limits -Wunreachable-code -Wunreachable-code-return -Wwrite-strings -Wno-invalid-offsetof -Wclass-varargs -Wempty-init-stmt -Wfloat-overflow-conversion -Wfloat-zero-conversion -Wloop-analysis -Wc++2a-compat -Wcomma -Wimplicit-fallthrough -Wunused-function -Wunused-variable -Wstring-conversion -Wtautological-overlap-compare -Wtautological-unsigned-enum-zero-compare -Wtautological-unsigned-zero-compare -Wno-error=tautological-type-limit-compare -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=backend-plugin -Wno-error=return-std-move -Wno-error=atomic-alignment -Wno-error=deprecated-copy -Wformat -Wformat-security -Wno-gnu-zero-variadic-macro-arguments -Wno-psabi -Wno-unknown-warning-option -fno-sized-deallocation -fno-aligned-new -O2 -pipe -O2 -pipe -march=native -mtune=native -O3 -DLIBICONV_PLUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -DLIBICONV_PLUG -isystem /usr/local/include -fno-exceptions -fno-strict-aliasing -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -pipe -O2 -O2 -O3 -fomit-frame-pointer -funwind-tables  -fPIC -shared -Wl,-z,defs -Wl,--warn-unresolved-symbols -Wl,--gc-sections -Wl,-h,libxul.so -o libxul.so /tmpfs/usr/ports/www/firefox/work/.build/toolkit/library/build/libxul_so.list  -flto=thin -Wl,-plugin-opt=-import-instr-limit=10 -Wl,-plugin-opt=new-pass-manager -Wl,-plugin-opt=-import-hot-multiplier=30 -pthread -Wl,--as-needed -fstack-protector-strong -Wl,-z,noexecstack -Wl,-z,text -Wl,-z,relro -Wl,-z,nocopyreloc -Wl,-Bsymbolic-functions -Wl,--build-id=sha1 -fstack-protector-strong -Wl,-rpath-link,/tmpfs/usr/ports/www/firefox/work/.build/dist/bin -Wl,-rpath-link,/usr/local/lib  ../../../js/src/build/libjs_static.a /tmpfs/usr/ports/www/firefox/work/.build/x86_64-unknown-freebsd/release/libgkrust.a ../../../config/external/lgpllibs/liblgpllibs.so ../../../config/external/sqlite/libmozsqlite3.so ../../../widget/gtk/mozgtk/stub/libmozgtk_stub.so   -L/usr/local/lib -licui18n -L/usr/local/lib -licuuc -licudata -laom -ldav1d -lX11 -lX11-xcb -lxcb -lXcomposite -lXcursor -lXdamage -lXext -lXfixes -lXi -lXrender -lpthread -lffi -lplds4 -lplc4 -lnspr4 -pthread -ldl -lz -lm -lnss3 -lsmime3 -lssl3 -lnssutil3 -lfreetype -lfontconfig -lutil -lpng -lwebpdemux -lwebp -lgraphite2 -lharfbuzz -levent -lvpx -lpixman-1 -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0 -lintl -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lxcb-shm -lpangoft2-1.0 -lXt -lgthread-2.0
ld: warning: undefined symbol: environ
>>> referenced by std.4i6l8qi9-cgu.4
>>>               std-51221f867f83fee2.std.4i6l8qi9-cgu.4.rcgu.o:(std::sys::unix::os::env::h4012e7da961963c4) in archive /tmpfs/usr/ports/www/firefox/work/.build/x86_64-unknown-freebsd/release/libgkrust.a
>>> referenced by std.4i6l8qi9-cgu.8
>>>               std-51221f867f83fee2.std.4i6l8qi9-cgu.8.rcgu.o:(std::sys::unix::process::process_inner::_$LT$impl$u20$std..sys..unix..process..process_common..Command$GT$::spawn::h150bb45ff1056f1c) in archive /tmpfs/usr/ports/www/firefox/work/.build/x86_64-unknown-freebsd/release/libgkrust.a
>>> referenced by std.4i6l8qi9-cgu.8
>>>               std-51221f867f83fee2.std.4i6l8qi9-cgu.8.rcgu.o:(std::sys::unix::process::process_inner::_$LT$impl$u20$std..sys..unix..process..process_common..Command$GT$::do_exec::h18490b6b7e7a764d) in archive /tmpfs/usr/ports/www/firefox/work/.build/x86_64-unknown-freebsd/release/libgkrust.a
>>> referenced 2 more times

ld: error: undefined hidden symbol: JS::SetHostCleanupFinalizationRegistryCallback(JSContext*, void (*)(JSFunction*, JSObject*, void*), void*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::~CycleCollectedJSContext())
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))

ld: error: undefined hidden symbol: JS_SetContextPrivate(JSContext*, void*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::~CycleCollectedJSContext())
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))

ld: error: undefined hidden symbol: JS_DestroyContext(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::~CycleCollectedJSContext())
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::net::ProxyAutoConfig::SetupJS())
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::net::ProxyAutoConfig::SetupJS())
>>> referenced 1 more times

ld: error: undefined hidden symbol: JS_NewContext(unsigned int, JSRuntime*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::net::ProxyAutoConfig::SetupJS())

ld: error: undefined hidden symbol: JS::SetJobQueue(JSContext*, JS::JobQueue*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))

ld: error: undefined hidden symbol: JS::SetPromiseRejectionTrackerCallback(JSContext*, void (*)(JSContext*, bool, JS::Handle<JSObject*>, JS::PromiseRejectionHandlingState, void*), void*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))

ld: error: undefined hidden symbol: JS::AddPersistentRoot(JS::RootingContext*, JS::RootKind, JS::PersistentRooted<JS::detail::RootListEntry*>*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::Initialize(JSRuntime*, unsigned int))
>>> referenced 35 more times

ld: error: undefined hidden symbol: JS::GetPromiseID(JS::Handle<JSObject*>)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::PromiseRejectionTrackerCallback(JSContext*, bool, JS::Handle<JSObject*>, JS::PromiseRejectionHandlingState, void*))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::NotifyUnhandledRejections::Run())
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::NotifyUnhandledRejections::Cancel())
>>> referenced 1 more times

ld: error: undefined hidden symbol: JS::GetPromiseResult(JS::Handle<JSObject*>)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::PromiseRejectionTrackerCallback(JSContext*, bool, JS::Handle<JSObject*>, JS::PromiseRejectionHandlingState, void*))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::NotifyUnhandledRejections::Run())
>>> referenced by Unified_cpp_dom_promise0.cpp
>>>               lto.tmp:(mozilla::dom::PromiseDebugging::GetState(mozilla::dom::GlobalObject&, JS::Handle<JSObject*>, mozilla::dom::PromiseDebuggingStateHolder&, mozilla::ErrorResult&))
>>> referenced 2 more times

ld: error: undefined hidden symbol: JS::CurrentGlobalOrNull(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::enqueuePromiseJob(JSContext*, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>))
>>> referenced by Unified_cpp_xpcom_base2.cpp
>>>               lto.tmp:(nsSystemInfo::GetProcessInfo(JSContext*, mozilla::dom::Promise**))
>>> referenced by Unified_cpp_intl_l10n0.cpp
>>>               lto.tmp:(mozilla::intl::Localization::FormatValues(JSContext*, mozilla::dom::Sequence<mozilla::dom::OwningUTF8StringOrL10nIdArgs> const&, mozilla::ErrorResult&))
>>> referenced 2220 more times

ld: error: undefined hidden symbol: JS::HeapObjectPostWriteBarrier(JSObject**, JSObject*, JSObject*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::enqueuePromiseJob(JSContext*, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::enqueuePromiseJob(JSContext*, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::enqueuePromiseJob(JSContext*, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>))
>>> referenced 4228 more times

ld: error: undefined hidden symbol: JS::GetPromiseUserInputEventHandlingState(JS::Handle<JSObject*>)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::enqueuePromiseJob(JSContext*, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>, JS::Handle<JSObject*>))

ld: error: undefined hidden symbol: JS::JobQueueMayNotBeEmpty(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::PerformMicroTaskCheckPoint(bool))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::DispatchToMicroTask(already_AddRefed<mozilla::MicroTaskRunnable>))
>>> referenced by Unified_cpp_dom_workers0.cpp
>>>               lto.tmp:(mozilla::dom::WorkerJSContext::DispatchToMicroTask(already_AddRefed<mozilla::MicroTaskRunnable>))
>>> referenced 1 more times

ld: error: undefined hidden symbol: JS::JobQueueIsEmpty(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::PerformMicroTaskCheckPoint(bool))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::PerformDebuggerMicroTaskCheckpoint())

ld: error: undefined hidden symbol: js::MallocArena
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::saveJobQueue(JSContext*))
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::Vector<JS::Value, 8ul, js::TempAllocPolicy>::growStorageBy(unsigned long))
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::Vector<JS::Value, 8ul, js::TempAllocPolicy>::growStorageBy(unsigned long))
>>> referenced 78 more times

ld: error: undefined hidden symbol: JS_ReportOutOfMemory(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::saveJobQueue(JSContext*))
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::net::Dashboard::GetSockets(mozilla::net::SocketData*))
>>> referenced by Unified_cpp_netwerk_base0.cpp
>>>               lto.tmp:(mozilla::net::Dashboard::GetHttpConnections(mozilla::net::HttpData*))
>>> referenced 597 more times

ld: error: undefined hidden symbol: JS::IsIdleGCTaskNeeded(JSRuntime*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::AfterProcessTask(unsigned int))

ld: error: undefined hidden symbol: JS::ClearKeptObjects(JSContext*)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::AfterProcessMicrotasks())

ld: error: undefined hidden symbol: JS::GetPromiseIsHandled(JS::Handle<JSObject*>)
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::NotifyUnhandledRejections::Run())
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(mozilla::CycleCollectedJSContext::NotifyUnhandledRejections::Run())

ld: error: undefined hidden symbol: JS::GCCellPtr::outOfLineKind() const
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(NoteWeakMapChildrenTracer::onChild(JS::GCCellPtr const&))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(NoteWeakMapChildrenTracer::onChild(JS::GCCellPtr const&))
>>> referenced by Unified_cpp_xpcom_base0.cpp
>>>               lto.tmp:(NoteWeakMapChildrenTracer::onChild(JS::GCCellPtr const&))
>>> referenced 829 more times

ld: error: too many errors emitted, stopping now (use -error-limit=0 to see all errors)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[5]: *** [/tmpfs/usr/ports/www/firefox/work/firefox-85.0.2/config/rules.mk:545: libxul.so] Error 1
gmake[5]: Leaving directory '/tmpfs/usr/ports/www/firefox/work/.build/toolkit/library/build'
gmake[4]: *** [/tmpfs/usr/ports/www/firefox/work/firefox-85.0.2/config/recurse.mk:72: toolkit/library/build/target] Error 2
gmake[4]: Leaving directory '/tmpfs/usr/ports/www/firefox/work/.build'
gmake[3]: *** [/tmpfs/usr/ports/www/firefox/work/firefox-85.0.2/config/recurse.mk:34: compile] Error 2
gmake[3]: Leaving directory '/tmpfs/usr/ports/www/firefox/work/.build'
gmake[2]: *** [/tmpfs/usr/ports/www/firefox/work/firefox-85.0.2/config/rules.mk:355: all] Error 2
gmake[2]: Leaving directory '/tmpfs/usr/ports/www/firefox/work/.build'
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/www/firefox
*** Error code 1

Stop.
make: stopped in /usr/ports/www/firefox

===>>> make build failed for www/firefox
===>>> Aborting update