Undefined Symbol Error when Linking KiCad 9.0.3

[frederickbrown]

I just ran into an undefined symbol error with mold when compiling KiCad 9.0.3 from source. The error fails to occur when lld is used as the linker.

System: Debian 12 with gcc-12 and g++-12.
Sources cloned from gitlab.

This is the jist of the eror:

[2036/2236] Building CXX object utils/idftools/CMakeFiles/idf2vrml.dir/idf2vrml.cpp.o
[2037/2236] Linking CXX executable utils/idftools/idf2vrml
FAILED: utils/idftools/idf2vrml 
: && /usr/bin/c++ -fuse-ld=mold -Wno-attributes -Wno-ignored-attributes -pthread -Wall -Wsuggest-override -Wduplicated-branches -Wduplicated-cond -Werror=vla -Wimplicit-fallthrough=5 -Werror=return-type -Wshadow -Wsign-compare -Wmissing-field-initializers -Wempty-body -Wreorder -Wmismatched-tags -Wpessimizing-move -Wredundant-move -Wno-psabi -O2 -g -DNDEBUG  utils/idftools/CMakeFiles/idf2vrml.dir/idf2vrml.cpp.o -o utils/idftools/idf2vrml -L/home/fred/.local/lib -Wl,-rpath,/home/fred/.local/lib:/home/fred/Source/kicad/kicad/build/release/common/gal:/home/fred/Source/kicad/kicad/build/release/common:/home/fred/Source/kicad/kicad/build/release/api:  utils/idftools/libidf3.a  libs/kimath/libkimath.a  common/libcommon.a  /usr/lib/x86_64-linux-gnu/libOpenGL.so  /usr/lib/x86_64-linux-gnu/libGLX.so  /usr/lib/x86_64-linux-gnu/libGLU.so  -L/home/fred/.local/lib  -pthread  -lwx_gtk3u_gl-3.2  -lwx_gtk3u_aui-3.2  -lwx_gtk3u_html-3.2  -lwx_gtk3u_core-3.2  -lwx_baseu_net-3.2  -lwx_baseu-3.2  -lwx_gtk3u_propgrid-3.2  -lwx_baseu_xml-3.2  -lwx_gtk3u_stc-3.2  -lwx_gtk3u_richtext-3.2  scripting/libscripting.a  common/libcommon.a  scripting/libscripting.a  thirdparty/libcontext/liblibcontext.a  common/gal/libkigal.so.9.0.3  thirdparty/glew/libglew.a  /usr/lib/x86_64-linux-gnu/libEGL.so  /usr/lib/x86_64-linux-gnu/libcairo.so  /usr/lib/x86_64-linux-gnu/libpixman-1.so  /usr/lib/x86_64-linux-gnu/libOpenGL.so  /usr/lib/x86_64-linux-gnu/libGLX.so  /usr/lib/x86_64-linux-gnu/libGLU.so  thirdparty/nanosvg/libnanosvg.a  thirdparty/dxflib_qcad/libdxflib_qcad.a  thirdparty/tinyspline_lib/libtinyspline_lib.a  thirdparty/nanodbc/libnanodbc.a  -lodbc  /usr/lib/x86_64-linux-gnu/libboost_locale.so.1.74.0  /usr/lib/x86_64-linux-gnu/libboost_chrono.so.1.74.0  /usr/lib/x86_64-linux-gnu/libboost_system.so.1.74.0  /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.74.0  /usr/lib/x86_64-linux-gnu/libboost_atomic.so.1.74.0  common/libkicommon.so.9.0.3  libs/kimath/libkimath.a  thirdparty/clipper2/libclipper2.a  -lm  libs/kiplatform/libkiplatform.a  libs/core/libcore.a  -L/home/fred/.local/lib  -pthread  -lgtk-3  -lgdk-3  -lz  -lpangocairo-1.0  -lpango-1.0  -lharfbuzz  -latk-1.0  -lcairo-gobject  -lcairo  -lgdk_pixbuf-2.0  -lgio-2.0  -lgobject-2.0  -lglib-2.0  -lsecret-1  -lgio-2.0  -lgobject-2.0  -lglib-2.0  -lsecret-1  /usr/lib/x86_64-linux-gnu/libwayland-client.so  thirdparty/fmt/libfmt.a  libs/kinng/libkinng.a  /usr/lib/x86_64-linux-gnu/libnng.so.1.5.2  api/libkiapi.so.9.0.3  /home/fred/.local/lib/libprotobuf.so.31.1.0  /home/fred/.local/lib/libabsl_log_internal_check_op.a  /home/fred/.local/lib/libabsl_die_if_null.a  /home/fred/.local/lib/libabsl_log_internal_conditions.a  /home/fred/.local/lib/libabsl_log_internal_message.a  /home/fred/.local/lib/libabsl_log_internal_nullguard.a  /home/fred/.local/lib/libabsl_examine_stack.a  /home/fred/.local/lib/libabsl_log_internal_format.a  /home/fred/.local/lib/libabsl_log_internal_structured_proto.a  /home/fred/.local/lib/libabsl_log_internal_log_sink_set.a  /home/fred/.local/lib/libabsl_log_sink.a  /home/fred/.local/lib/libabsl_log_entry.a  /home/fred/.local/lib/libabsl_log_internal_proto.a  /home/fred/.local/lib/libabsl_flags_internal.a  /home/fred/.local/lib/libabsl_flags_marshalling.a  /home/fred/.local/lib/libabsl_flags_reflection.a  /home/fred/.local/lib/libabsl_flags_config.a  /home/fred/.local/lib/libabsl_flags_program_name.a  /home/fred/.local/lib/libabsl_flags_private_handle_accessor.a  /home/fred/.local/lib/libabsl_flags_commandlineflag.a  /home/fred/.local/lib/libabsl_flags_commandlineflag_internal.a  /home/fred/.local/lib/libabsl_log_initialize.a  /home/fred/.local/lib/libabsl_log_internal_globals.a  /home/fred/.local/lib/libabsl_log_globals.a  /home/fred/.local/lib/libabsl_vlog_config_internal.a  /home/fred/.local/lib/libabsl_log_internal_fnmatch.a  /home/fred/.local/lib/libabsl_raw_hash_set.a  /home/fred/.local/lib/libabsl_hashtablez_sampler.a  /home/fred/.local/lib/libabsl_random_distributions.a  /home/fred/.local/lib/libabsl_random_seed_sequences.a  /home/fred/.local/lib/libabsl_random_internal_entropy_pool.a  /home/fred/.local/lib/libabsl_random_internal_randen.a  /home/fred/.local/lib/libabsl_random_internal_randen_hwaes.a  /home/fred/.local/lib/libabsl_random_internal_randen_hwaes_impl.a  /home/fred/.local/lib/libabsl_random_internal_randen_slow.a  /home/fred/.local/lib/libabsl_random_internal_platform.a  /home/fred/.local/lib/libabsl_random_internal_seed_material.a  /home/fred/.local/lib/libabsl_random_seed_gen_exception.a  /home/fred/.local/lib/libabsl_statusor.a  /home/fred/.local/lib/libabsl_status.a  /home/fred/.local/lib/libabsl_cord.a  /home/fred/.local/lib/libabsl_cordz_info.a  /home/fred/.local/lib/libabsl_cord_internal.a  /home/fred/.local/lib/libabsl_hash.a  /home/fred/.local/lib/libabsl_city.a  /home/fred/.local/lib/libabsl_cordz_functions.a  /home/fred/.local/lib/libabsl_exponential_biased.a  /home/fred/.local/lib/libabsl_cordz_handle.a  /home/fred/.local/lib/libabsl_crc_cord_state.a  /home/fred/.local/lib/libabsl_crc32c.a  /home/fred/.local/lib/libabsl_crc_internal.a  /home/fred/.local/lib/libabsl_crc_cpu_detect.a  /home/fred/.local/lib/libabsl_leak_check.a  /home/fred/.local/lib/libabsl_strerror.a  /home/fred/.local/lib/libabsl_str_format_internal.a  /home/fred/.local/lib/libabsl_synchronization.a  /home/fred/.local/lib/libabsl_stacktrace.a  /home/fred/.local/lib/libabsl_symbolize.a  /home/fred/.local/lib/libabsl_debugging_internal.a  /home/fred/.local/lib/libabsl_demangle_internal.a  /home/fred/.local/lib/libabsl_demangle_rust.a  /home/fred/.local/lib/libabsl_decode_rust_punycode.a  /home/fred/.local/lib/libabsl_utf8_for_code_point.a  /home/fred/.local/lib/libabsl_graphcycles_internal.a  /home/fred/.local/lib/libabsl_kernel_timeout_internal.a  /home/fred/.local/lib/libabsl_malloc_internal.a  /home/fred/.local/lib/libabsl_tracing_internal.a  /home/fred/.local/lib/libabsl_time.a  /home/fred/.local/lib/libabsl_civil_time.a  /home/fred/.local/lib/libabsl_time_zone.a  /home/fred/.local/lib/libabsl_strings.a  /home/fred/.local/lib/libabsl_int128.a  /home/fred/.local/lib/libabsl_strings_internal.a  /home/fred/.local/lib/libabsl_string_view.a  /home/fred/.local/lib/libabsl_base.a  /home/fred/.local/lib/libabsl_spinlock_wait.a  -lrt  /home/fred/.local/lib/libabsl_throw_delegate.a  /home/fred/.local/lib/libabsl_raw_logging_internal.a  /home/fred/.local/lib/libabsl_log_severity.a  thirdparty/json_schema_validator/libnlohmann_json_schema_validator.a  /usr/lib/x86_64-linux-gnu/libcurl.so  /usr/lib/x86_64-linux-gnu/libzstd.so  -lwx_gtk3u_gl-3.2  -lwx_gtk3u_aui-3.2  -lwx_gtk3u_html-3.2  -lwx_gtk3u_core-3.2  -lwx_baseu_net-3.2  -lwx_baseu-3.2  -lwx_gtk3u_propgrid-3.2  -lwx_baseu_xml-3.2  -lwx_gtk3u_stc-3.2  -lwx_gtk3u_richtext-3.2  /usr/lib/x86_64-linux-gnu/libgit2.so  /usr/lib/x86_64-linux-gnu/libfreetype.so  /usr/lib/x86_64-linux-gnu/libfontconfig.so  /usr/lib/x86_64-linux-gnu/libpython3.11.so  -Wl,-rpath-link,/home/fred/.local/lib && :
mold: error: undefined symbol: Kiface()
>>> referenced by eda_base_frame.cpp
>>>               common/libcommon.a(eda_base_frame.cpp.o):(EDA_BASE_FRAME::config() const)>>> referenced by eda_base_frame.cpp
>>>               common/libcommon.a(eda_base_frame.cpp.o):(EDA_BASE_FRAME::sys_search())>>> referenced by eda_base_frame.cpp
>>>

[rui314]

Are you using the latest version of the mold linker?