Details
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Bug
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Resolution: Fixed
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Not Evaluated
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None
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6.5.0 Beta1
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None
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WebAssembly
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qt/qt5(4ee1668f466d35af83761a090add731ca1de4925) qt/qt5(1d77e425427439bf32968734db0d605d0a9cea30)
Description
If you use Qt provided by the maintenance tool, it seems to be compiled with diverging Emscripten versions. Recommended is 3.1.14 (which is active). During CMake you see:
Qt Wasm built with Emscripten version: 3.1.10 You are using Emscripten version: 3.1.14 The recommended version of Emscripten for this Qt is: 3.1.14 This may not work correctly
And indeed - it does not work correctly:
error: undefined symbol: _ZNKSt3__220__vector_base_commonILb1EE20__throw_length_errorEv (referenced by top-level compiled C/C++ code) warning: Link with `-sLLD_REPORT_UNDEFINED` to get more information on undefined symbols warning: To disable errors for undefined symbols use `-sERROR_ON_UNDEFINED_SYMBOLS=0` warning: __ZNKSt3__220__vector_base_commonILb1EE20__throw_length_errorEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library error: undefined symbol: _ZNKSt3__220__vector_base_commonILb1EE20__throw_out_of_rangeEv (referenced by top-level compiled C/C++ code) warning: __ZNKSt3__220__vector_base_commonILb1EE20__throw_out_of_rangeEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library error: undefined symbol: _ZNKSt3__221__basic_string_commonILb1EE20__throw_length_errorEv (referenced by top-level compiled C/C++ code) warning: __ZNKSt3__221__basic_string_commonILb1EE20__throw_length_errorEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library error: undefined symbol: _ZNKSt3__221__basic_string_commonILb1EE20__throw_out_of_rangeEv (referenced by top-level compiled C/C++ code) warning: __ZNKSt3__221__basic_string_commonILb1EE20__throw_out_of_rangeEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library Error: Aborting compilation due to previous errors
Going to 3.1.10 instead of 3.1.14 works.