3.1.60 problem，undefined symbol

[WenAce]

wasm-ld: error: C:\Users\xxx\AppData\Local\Temp\tmp55p8damxlibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_fullscreenchange_callback_on_thread，this is what I built my project and it shows the error，what is the problem，I use -pthread，-sPROXY_TO_PTHREAD=1 -sOFFSCREENCANVAS_SUPPORT=1 to build

[sbc100]

Is this a regression? (i.e. did it work in previous version?)

Those symbols (_emscripten_run_callback_on_thread and emscripten_set_fullscreenchange_callback_on_thread) are part of libhtml5 (one in the JS html5 library and one in the native html5 library).

Are you share the full link command you are using?

[WenAce]

in my project，I already use -s at the beginning，so it's fine,but it just show me some error.
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_webgl_create_context
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_fullscreenchange_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_mouseup_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_keydown_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_blur_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_keyup_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_set_offscreencanvas_size_on_thread. Required by emscripten_request_fullscreen_strategy
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_request_fullscreen_strategy
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_mousedown_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_mousemove_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_wheel_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_touchend_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_touchmove_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_touchcancel_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_set_offscreencanvas_size_on_thread. Required by emscripten_set_canvas_element_size
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_canvas_element_size
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_touchstart_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_resize_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_focus_callback_on_thread
wasm-ld: error: C:\Users\AppData\Local\Temp\tmpg1qg72pklibemscripten_js_symbols.so: undefined symbol: _emscripten_run_callback_on_thread. Required by emscripten_set_keypress_callback_on_thread

[sbc100]

Can you share the full error that shows all the wasm-ld command line flags. That _emscripten_run_callback_on_thread symbol lives in libhtml5, but it seems like perhaps -lhtml5 is not being passed to wasm-ld? Can you confirm?

[WenAce]

we found the answer， which is the “-s strict=1”, it seems like it will make us link lib by ourselves, so now we don't use that， and we succeeded to build， thanks

[sbc100]

Yes, -sSTRICT implies -sAUTO_NATIVE_LIBRARIES which means you need to explicitly add -lhtml5.. or you could set -sAUTO_NATIVE_LIBRARIES=1 explicitly.