<<< metadata_duplicate_useflag_description >>>
  sys-devel/gcc|debug:jit:lto|toolchain@gentoo.org
<<< packages_pkgcheck_scan >>>
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    DeadUrl: version 10.5.0: SRC_URI: 404 Client Error: Not Found for url: https://gcc.gnu.org/pub/gcc/gcc/gcc-10.5.0/gcc-10.5.0.tar.xz
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    DeadUrl: version 15.0.1_pre20250418-r1: SRC_URI: 404 Client Error: Not Found for url: https://bigsearcher.com/mirrors/gcc/snapshots/15.1.0-RC-20250418/gcc-15.1.0-RC-20250418.tar.xz
<<< open bugs >>>
  https://bugs.gentoo.org/490276 =media-libs/x264-0.0.20130912_with_=sys-devel/gcc-4.8.1-r1_-_error:_'asm'_operand_has_impossible_constraints
  https://bugs.gentoo.org/526986 sys-devel/gcc_should_check_available_disk_space_via_check-reqs.eclass
  https://bugs.gentoo.org/606094 revdep-rebuild_confused_by_SYMLINK_LIB=yes_and_flags_orphaned_files_in_sys-devel/gcc
  https://bugs.gentoo.org/631460 sys-devel/gcc:_when_installed_for_mingw-w64_there_is_no_official_way_to_set_'Thread_model:_posix'
  https://bugs.gentoo.org/685062 sys-devel/gcc-9_C++17_Parallel_algorithms_support_dependency_on_dev-cpp/tbb-2018.20180312
  https://bugs.gentoo.org/795810 sys-devel/gcc-10.3.0_QA_Notice:_Pre-stripped_files_found
  https://bugs.gentoo.org/828678 sys-devel/gcc_does_not_actually_honor_USE=&quot;-cxx&quot;
  https://bugs.gentoo.org/829955 sys-devel/gcc:_fails_when_building_on_NixOS_during_bootstrap_(cc1:_error:_no_include_path_in_which_to_search_for_stdc-predef.h)_(tries_to_use_system_/usr/include?)
  https://bugs.gentoo.org/830859 sys-devel/gcc-config:_add_explicit_--root_option
  https://bugs.gentoo.org/841955 sys-devel/gcc-10.3.1_p20211126:_/usr/powerpc64le-unknown-linux-gnu/bin/ld.gold:_/var/tmp/portage/sys-devel/gcc-10.3.1_p20211126/work/build/powerpc64le-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6:_version_`GLIBCXX_3.4.29'_not_found_(required_by
  https://bugs.gentoo.org/849107 sys-devel/gcc:_crossdev_powerpc64-unknown-linux-gnu_ICEs,_fails_to_build_glibc_(on_sysdeps/powerpc/powerpc64/multiarch/strlen.c)
  https://bugs.gentoo.org/854477 sys-devel/gcc-11.3.0_fails_several_tests_on_ppc64
  https://bugs.gentoo.org/856424 sys-devel/gcc-11.3.0_fail_to_build_sys-devel/gcc-12.1_p20220625:_internal_compiler_error:_Segmentation_fault
  https://bugs.gentoo.org/862891 sys-devel/gcc:_ICE_when_building_media-libs/libjxl_in__function_'bool_jxl_skcms_Parse(const_void*,_size_t,_skcms_ICCProfile*)':_at_skcms/skcms.cc:1004:6
  https://bugs.gentoo.org/863392 sys-devel/gcc:_cross-avr/gcc-12.1.0_incorrectly_reports_illegal_opcode_&quot;asr&quot;_instead_of_&quot;jmp&quot;_on_non-supporting_architectures
  https://bugs.gentoo.org/880247 sys-devel/gcc-config_c99_wrapper_should_add_-P_flag
  https://bugs.gentoo.org/883769 sys-devel/gcc:_failed_to_cross-compile_for_aarch64-unknown-linux-gnu_(libgcc2.c:1874:18:_error:_'__LIBGCC_SF_MAX__'_undeclared_(first_use_in_this_function))
  https://bugs.gentoo.org/884497 sys-devel/gcc-12.2.1_p20221203[go]_Error:_selected_processor_does_not_support_`eor3_v1.16b,v1.16b,v18.16b,v23.16b'
  https://bugs.gentoo.org/884789 sys-devel/gcc:12[jit]_-B_build_with_-march__&amp;_-mtune_constraints_for_a_target,_libgccjit_generates_hard_coded_host_cpu_class_instructions
  https://bugs.gentoo.org/891693 sys-devel/gcc:8.5.0-r1_does_not_compile_against_glibc-2.36_without_patch
  https://bugs.gentoo.org/891889 sys-devel/gcc-11.3.1_p20230120-r1[sanitize]:_fails_to_compile_(bits/struct_stat.h:26:8:_error:_redefinition_of_‘struct_stat’)
  https://bugs.gentoo.org/899974 sys-devel/mold-1.10.1_-_packages_built_with_mold_fail_with:_crtbeginS.o:(.text):_cannot_find_a_symbol_in_.opd_for_R_PPC64_REL24_at_offset_0x0_because_of_stripped_sys-devel/gcc
  https://bugs.gentoo.org/900146 sys-devel/gcc-13:_ICE_when_building_kde-frameworks/ktexteditor-5.103.0_with_-fdevirtualize-at-ltrans
  https://bugs.gentoo.org/900945 sys-devel/gcc-12.2.1_p20230121-r1_fails_several_tests_on_ppc
  https://bugs.gentoo.org/913879 sys-devel/gcc-13.2.0_fail_on_loongson_2f_notebook
  https://bugs.gentoo.org/914351 sys-devel/gcc-11.3.1_p20230427_+jit_fails_to_configure_if_clang_profile_+_-glldb__(_ebuild_problem_?_)
  https://bugs.gentoo.org/914888 llvm-core/clang-16.0.6_-_fails_to_build_with_'-Os'_with_sys-devel/gcc:13_on_ppc64
  https://bugs.gentoo.org/916725 sys-devel/gcc-bin:_new_set_of_package_that_matches_the_latest_stage3_sys-devel/gcc_binary
  https://bugs.gentoo.org/919704 sys-devel/gcc:_fails_to_build_with_`-Wl,--no-undefined-version`_due_to_undefined_versions_in_libatomic
  https://bugs.gentoo.org/922494 sys-devel/gcc_fails_to_build_with_-flto_-fuse-linker-plugin
  https://bugs.gentoo.org/927830 sys-devel/gcc-13.2.1_p20240210[go]:_miscompiled_with_-fstack-clash-protection_on_ppc64_(internal_compiler_error_(libgo/go/runtime/mheap.go:808:29:_internal_compiler_error:_in_dwarf2out_frame_debug_expr,_at_dwarf2cfi.cc:1844))
  https://bugs.gentoo.org/933757 sys-apps/man-db_generated_database_is_missing_man_pages_located_in_non-standard_paths_(e.g._sys-devel/gcc_man_pages)
  https://bugs.gentoo.org/936612 sys-devel/gcc-14.1.0:_bootstrap-prefix.sh_stage2_fails_(on_arm64-apple-darwin23)
  https://bugs.gentoo.org/937446 sys-devel/gcc-14.2.0,_undefined_referece_to__Unwind_GetIP,_on_ARM_MUSL
  https://bugs.gentoo.org/937969 sys-devel/gcc-14.1.0:_bootstrap-prefix.sh_stage3_fails_(on_Darwin)
  https://bugs.gentoo.org/940214 sys-devel/gcc-14.2.0:_bootstrap-prefix.sh_stage2_fails_(on_Darwin)
  https://bugs.gentoo.org/941543 sys-devel/gcc-15.0.0_pre20241006_makes_ICE_from_invalid_program
  https://bugs.gentoo.org/943303 sys-devel/gcc-14.2.1_p20241026:_crossdev_powerpc-unknown-linux-gnu_fails_(error:_explicit_template_argument_list_not_allowed)
  https://bugs.gentoo.org/946463 sys-devel/gcc:_Compiling_media-video/ffmpeg_with_GCC_flag_&quot;-floop-nest-optimize&quot;_produces_buggy_MP3_decoder
  https://bugs.gentoo.org/948045 sys-devel/gcc-14.2.1_p20241221:_fails_to_build_on_big_endian_ARM64:_`dynamic_cast'_not_permitted_with_`-fno-rtti'
  https://bugs.gentoo.org/948869 media-gfx/darktable:_need_for_sys-devel/gcc[graphite]_can_be_obviated_with_small_amount_of_patching
  https://bugs.gentoo.org/948893 sys-devel/gcc:_risc-v_gcc-14_binary_size_is_too_large
  https://bugs.gentoo.org/951300 sys-devel/gcc-14.2.1_p20250308[go]:_Fails_to_build_on_musl_profile
  https://bugs.gentoo.org/953974 =media-gfx/darktable-5.0.0-r1_failed_with_sys-devel/gcc-15.0.9999__:_error:_template_with_C_linkage
  https://bugs.gentoo.org/442548 sys-devel/gcc:_doesn't_build_n32_libraries_in_n64_mips_multilib_config
  https://bugs.gentoo.org/477956 [TRACKER]_Build_sys-devel/gcc_as_an_N64_binary_on_MIPS_profiles_with_non-N64_default_ABI
  https://bugs.gentoo.org/546692 sys-libs/musl:_Install_sys-libs/fortify-headers_for_use_with_sys-devel/gcc
  https://bugs.gentoo.org/563614 sys-devel/binutils-config:_update_not_atomic_enough_(probably_sys-devel/gcc-config_too)
  https://bugs.gentoo.org/617788 sys-devel/gcc-7.2.0[multilib,obj-gc]:_missing_abi_DEPEND_on_dev-libs/boehm-gc:_configure:_error:_system_bdw-gc_required_but_not_found
  https://bugs.gentoo.org/622662 media-libs/libdv-1.0.0-r3_does_not_emerge_w/_sys-devel/gcc-7.1.0-r1[pie,ssp]_with_gold_on_x86_(error:_error:_.libs/idct_block_mmx.o:_relocation_R_386_GOTOFF_against_preemptible_symbol_preSC_cannot_be_used_when_making_a_shared_object)
  https://bugs.gentoo.org/645090 sys-devel/gcc_USE=&quot;-cxx_go&quot;_should_not_build_instead_of_disabling_go
  https://bugs.gentoo.org/675954 sys-devel/gcc:_`gcc_-print-multi-os-directory`_returns_../lib64_(should_be_../lib_or_.)_on_64-bit_musl_and_uclibc_systems
  https://bugs.gentoo.org/685946 sys-devel/gcc:_incomplete_multilib_dependencies_(automagically_depends_on_multilib_sys-devel/zlib)
  https://bugs.gentoo.org/693252 =sys-devel/gcc-3.4.3_on_IA64_should_use_system_libunwind.so_from_sys-libs/libunwind,_sys-libs/libunwind_should_install_shared_libraries_for_native_ABI_in_/lib
  https://bugs.gentoo.org/724314 =sys-devel/gcc-10:_stack_corruption_(internal_compiler_error/ICE)_in_cp_gimplify_expr()_when_building_dev-libs/boost_on_AMD_Ryzen_(znver1)
  https://bugs.gentoo.org/728638 sys-devel/gcc[lto]_fails_src_compile_with_binutils-config[-native-symlinks]_(_/work/build/./prev-gcc/gcc-ar:_Cannot_find_binary_'ar'_)
  https://bugs.gentoo.org/729384 =dev-lang/R-4.0.2[-lapack]_on_HPPA_with_&gt;=sys-devel/gcc-10_-_dsvdc.f:107:34:_Error:_Expression_at_(1)_must_be_of_INTEGER_type,_found_REAL
  https://bugs.gentoo.org/732706 [TRACKER]_sys-devel/gcc-11_porting
  https://bugs.gentoo.org/801580 sys-devel/gcc-11.1.0-r2[jit]:_gccjit_runtime_failure_with_ccache_(was:_app-editors/emacs-28.0.9999[jit]_fails_with_FEATURES=ccache)
  https://bugs.gentoo.org/812938 sys-devel/gcc:_allow_building_just_libgcc,_libstdc++_(or_split_into_new_packages)
  https://bugs.gentoo.org/826758 sys-devel/gcc-11.2.0_fails_tests:_-_FAIL:_c-c++-common/asan/strncpy-overflow-1.c_-O1_(test_for_excess_errors)
  https://bugs.gentoo.org/832023 sys-devel/gcc-10.3.1_p20211126_fails_to_compile:_ld.lld:_error:_undefined_symbol:_ix86_isa_flags
  https://bugs.gentoo.org/833056 sys-devel/gcc-11.2.1_p20220115_-_/.../ld:_i386_architecture_of_input_file_.../crti.o_is_incompatible_with_i386:x86-64_output
  https://bugs.gentoo.org/839906 [TRACKER]_sys-devel/gcc-12_porting
  https://bugs.gentoo.org/840014 sys-devel/gcc-12.2.1_p20221210_installs_libtool_files_(.la)_without_corresponding_static_libraries
  https://bugs.gentoo.org/865117 [TRACKER]_sys-devel/gcc-13_porting
  https://bugs.gentoo.org/870028 dev-debug/valgrind:_build_failure_without_sys-devel/gcc_installed_for_libgcc_(ld.lld:_error:_unable_to_find_library_-lgcc)
  https://bugs.gentoo.org/879525 sys-devel/gcc-12.2.1_p20221008_-_clang-15:_error:_unsupported_option_-print-multi-os-directory
  https://bugs.gentoo.org/879773 sys-devel/gcc-apple:_possible_configure_breakage_with_Clang_16
  https://bugs.gentoo.org/883415 sys-devel/gcc-11.3.1_p20221007_fails_to_compile_(CLANG-STRICTER-SYSTEM):_clang++:_libstdc++.so.6:_version_GLIBCXX_3.4.30_not_found_(required_by_libLLVM-15.so)
  https://bugs.gentoo.org/885795 llvm-core/llvm:_build_failure_on_PPC_with_=_sys-devel/gcc-11(?)_with_-fsanitize=undefined_(Error:_operand_out_of_range)
  https://bugs.gentoo.org/886484 sys-devel/gcc_-_Generates_invalid_-march_option_when_ARMv8_sha3_extensions_present
  https://bugs.gentoo.org/892079 sys-devel/gcc-12.2.1_p20230121-r1[sanitize]_-_.../sanitizer_common/sanitizer_linux.cpp:_In_function_'void___sanitizer::GetPcSpBp(void*,_uptr*,_uptr*,_uptr*)':_.../sanitizer_linux.cpp:2074:31:_error:_'struct_mcontext_t'_has_no_member_named_'regs'_(on_musl)
  https://bugs.gentoo.org/892874 sys-devel/gcc:_fails_to_cross-compile_for_powerpc-gentoo-linux-musl_(dfp-bit.h:291:2:_error:_#error_&quot;unknown_long_double_size,_cannot_define_BFP_FMT&quot;)
  https://bugs.gentoo.org/900519 sys-devel/gcc-12.2.1_p20230304:_ICE_in_ix86_print_operand_address_as_when_building_dev-qt/qtwidgets-5.15.8-r3_and_others_with_LTO_(bitcode_mismatch?)
  https://bugs.gentoo.org/903896 sys-devel/gcc-12.2.1_p20230304_-_/.../proc.c:_error:_#error_unknown_case_for_SETCONTEXT_CLOBBERS_TLS
  https://bugs.gentoo.org/904127 sys-devel/gcc-11.3.1_p20230303[fortran]_adds_-Werror_flag_on_its_own
  https://bugs.gentoo.org/904369 sys-devel/gcc_rename_USE_pie/ssp
  https://bugs.gentoo.org/914580 [TRACKER]_sys-devel/gcc-14_porting
  https://bugs.gentoo.org/917361 sys-devel/gcc,_llvm-core/clang:_maybe_install_${COMPILER}-cachekey_or_such_for_ccache_usage
  https://bugs.gentoo.org/920350 sys-devel/gcc_ICE_m68k_with_-fzero-call-used-regs=all_-_internal_compiler_error:_in_change_address_1,_at_emit-rtl.cc:2287
  https://bugs.gentoo.org/920630 sys-devel/gcc[sanitize]_fails_to_compile_on_armv6_with_error:_invalid_use_of_incomplete_type_'struct___sanitizer::stat64'_with_sys-libs/musl-1.2.4
  https://bugs.gentoo.org/920719 sys-devel/gcc-13.2.1_p20231216_bootstrap_comparison_failure_on_s390x_(stage1)
  https://bugs.gentoo.org/922934 sys-devel/gcc:_please_add_USE_flag_to_enable_&quot;libstdcxx-backtrace&quot;_at_emerge_time
  https://bugs.gentoo.org/923944 sys-devel/gcc-13.2.1_p20240113-r1_installs_files_that_contain_a_TEXTREL:_libgfortran.so.5.0.0
  https://bugs.gentoo.org/923945 sys-devel/gcc-13.2.1_p20240113-r1_has_implicit_function_declarations_in_configure_logs
  https://bugs.gentoo.org/928527 sys-devel/gcc-13.2.1_p20240210_-_make[3]:_No_rule_to_make_target_gcc-13.2.1_p20240210,_needed_by_.../cc1gm2._Stop.
  https://bugs.gentoo.org/928751 sys-devel/gcc-13.2.1_p20240210_-_/.../_locale:_error:__abi_tag__attribute_only_applies_to_structs,_variables,_functions,_and_namespaces
  https://bugs.gentoo.org/932474 [Tracker]_sys-devel/gcc-15_porting
  https://bugs.gentoo.org/932733 sys-devel/gcc-14.1.1_p20240518_fails_to_build_on_m68k_(ICE)
  https://bugs.gentoo.org/935418 sys-devel/gcc-15.0.0_pre20240630_-_[perl-5.40]_[ncurses-6.5]_[icu-75.1]_[gcc-15]_[llvm]_/.../exception_ptr.h:_error:_no_member_named_fancy_abort_in_namespace_std
  https://bugs.gentoo.org/935419 sys-devel/gcc-15.0.0_pre20240630_-_[perl-5.40]_[ncurses-6.5]_[icu-75.1]_[gcc-15]_[llvm]_/.../locale:_error:_attempt_to_use_a_poisoned_identifier
  https://bugs.gentoo.org/936033 sys-devel/gcc-15.0.0_pre20240707_-_[perl-5.40]_[ncurses-6.5]_[icu-75.1]_[gcc-15]_[llvm]_cc1:_error:_-fcf-protection_is_not_compatible_with_this_target
  https://bugs.gentoo.org/938949 sys-devel/gcc:_link_failures_with_-fuse-ld=mold_on_musl
  https://bugs.gentoo.org/940470 sys-devel/gcc:11:_package_a_stripped_down_version_for_building_D
  https://bugs.gentoo.org/940654 llvm-core/llvm-19.1.1_fails_to_compile_on_ppc64le_with_sys-devel/gcc[ieee-long-double]:_error:_invalid_conversion_from_‘_Float128_(*)(_Float128)_noexcept’_to_‘long_double_(*)(long_double)’
  https://bugs.gentoo.org/941545 sys-devel/gcc[sanitize]:_needs__TIME_BITS=64_backports
  https://bugs.gentoo.org/943656 sys-devel/gcc:_consider_enabling_-D_GLIBCXX_ASSERTIONS_by_default
  https://bugs.gentoo.org/945920 =sys-devel/gcc-15.0.0_pre20241201:_build_failure:_TlsPreTcbSize'_was_not_declared_in_this_scope
  https://bugs.gentoo.org/946338 sys-devel/gcc_RISCV_OoM_when_using_MAKEOPTS_1_-_collect2:_fatal_error:_ld_terminated_with_signal_9_[Killed]
  https://bugs.gentoo.org/946956 sys-devel/gcc-15.0.0_pre20241222_musl_-_libstdc++-v3/../include/libiberty.h:112:14:_error:_conflicting_types_for_'basename';_have_'char_*(const_char_*)'___112_|_extern_char_*basename_(const_char_*)_ATTRIBUTE_RETURNS_NONNULL_ATTRIBUTE_NONNULL(1);
  https://bugs.gentoo.org/948043 =sys-devel/gcc-14.2.1_p20241221:_possible_miscompilation_of_sci-libs/qd_on_riscv
  https://bugs.gentoo.org/948103 sys-devel/gcc-15.0.1_pre20250126_installs_files_that_contain_insecure_RUNPATHs
  https://bugs.gentoo.org/950310 Inefficient_dependencies_resolution_for_sys-devel/gcc[d]_(more_optimal_path_is_possible)
  https://bugs.gentoo.org/950612 sys-devel/binutils-2.44:_2_test_failures_(No_PLT)_on_x86_caused_by_sys-devel/gcc[default-znow]
  https://bugs.gentoo.org/951741 sys-devel/gcc[ada,pgo,lto]:_fails_to_build_on_arm
  https://bugs.gentoo.org/951969 sys-devel/gcc-14.2.1_p20241221_bootstrap_comparison_failure_with_USE=&quot;lto&quot;_CC=&quot;clang&quot;_CXX=&quot;clang++&quot;
  https://bugs.gentoo.org/953044 sys-devel/gcc-14.2.1_p20250301_-_[cmake-4]_sanitizer_platform_limits_posix.cpp:_error:_invalid_application_of_sizeof_to_incomplete_type__sanitizer::termio
  https://bugs.gentoo.org/953484 sys-devel/gcc-14.2.1_p20250301:_absurdly_high_memory_usage_when_compiling_llvm-core/flang
  https://bugs.gentoo.org/953869 sys-devel/gcc:_re-enable_automatic_build-ids
  https://bugs.gentoo.org/953955 [Tracker]_sys-devel/gcc-16_porting
  https://bugs.gentoo.org/821220 sys-devel/gcc-12.1.0:_Unicode_&quot;bidirectional_override&quot;_(CVE-2021-42574)
  https://bugs.gentoo.org/914070 sys-devel/gcc:_Stack_protection_and_stack_clash_protection_ineffective_for_VLAs_on_arm64_(-fstack-protector*_and_-fstack-clash-protection)
  https://bugs.gentoo.org/928536 sys-devel/gcc-13.2.1_p20240210[doc]_fails_to_install_(install_phase_failed)
  https://bugs.gentoo.org/933282 app-arch/xz-utils-5.6.2_and_previous_version_fails_to_build_with_sys-devel/gcc:13_but_builds_with_sys-devel/gcc:11_(../../src/liblzma/.libs/liblzma.so:_undefined_reference_to_`__pthread_cond_timedwait64')
  https://bugs.gentoo.org/942573 =sys-devel/gcc:14_miscompiles_www-client/firefox[-clang],_mail-client/thunderbird[-clang]_(crash_on_startup_when_compiled_in_MakeDay_in_jsdate.cpp:429)
  https://bugs.gentoo.org/948394 sys-devel/gcc-15.0.9999:_libstdc++.module.json_path_setting_wrongly
  https://bugs.gentoo.org/950463 sys-devel/gcc-14.2.1_p20241221:_ICE_when_building_sci-ml/caffe2_on_arm64
  https://bugs.gentoo.org/950652 sys-devel/gcc-15.0.1_pre20250302:_fails_to_compile_llvm-core/llvm-20.1.0