undefined symbol: emscripten_set_main_loop_arg

[trsh]

Any ideas why I am getting this?

My includes:

#include "imgui/imgui.h"
#include "imgui/imgui_impl_glfw.h"
#include "imgui/imgui_impl_wgpu.h"
#include <stdio.h>
#include <emscripten.h>
#include <emscripten/html5.h>
#include <emscripten/html5_webgpu.h>
#include <GLFW/glfw3.h>
#include <webgpu/webgpu.h>
#include <webgpu/webgpu_cpp.h>

calling:

emscripten_set_main_loop_arg(main_loop, window, 0, false);

cmd

C:\Windows\system32\cmd /c "emcc -std=c++14 -Wall -Wextra -Werror -Wno-nonportable-include-path -fno-rtti -g0 -DNDEBUG=1 -flto  -O3  --output_eol linux -s USE_GLFW=3 -s INITIAL_MEMORY=3GB -s NO_DISABLE_EXCEPTION_CATCHING=0 -lglfw -pthread -s PTHREAD_POOL_SIZE=10 -s PTHREAD_POOL_SIZE_STRICT=2 -s PROXY_TO_PTHREAD=0 -s USE_PTHREADS=1 -s SHARED_MEMORY=1 -s ENVIRONMENT=web,worker -s ERROR_ON_UNDEFINED_SYMBOLS=1 -s LLD_REPORT_UNDEFINED -s ALLOW_MEMORY_GROWTH=0 -s MINIMAL_RUNTIME=1 -s NO_EXIT_RUNTIME=1 -s NO_FILESYSTEM=1 -s STRICT=0 -s TEXTDECODER=2 -s USE_WEBGPU=1 -s WASM=1 --shell-file src/ems/shell.html -s ABORTING_MALLOC=0 -s ASSERTIONS=2 -s EVAL_CTORS=0 -s SUPPORT_ERRNO=0 -Iinc src/ems/glue.cpp src/ems/webgpu.cpp src/ems/window.cpp src/main.cpp inc/imgui/imgui.cpp inc/imgui/imgui_draw.cpp inc/imgui/imgui_impl_glfw.cpp inc/imgui/imgui_impl_wgpu.cpp inc/imgui/imgui_tables.cpp inc/imgui/imgui_widgets.cpp  -o out/web/index.html"

[sbc100]

I believe this is because you are using MINIMAL_RUNTIME. In the most the library_browser.js JS library is not included by default. You would need to include it explicitly using -lbrowser.js.

[sbc100]

For $GL you would need to include -lwebgl.js.

[trsh]

For $GL you would need to include -lwebgl.js.

Noice, Works. Are these things documented shomwhere?

[sbc100]

Not that I know of, its kind of artifact of using MINIMAL_RUNTIME which I would still consider new/experimental. @juj should we try to adding jslib->jslib dependecies somehow? I know you consider browser.js legacy at this point so maybe its not worth it?

[roistoFIN]

Compiled with MINIMAL_RUNTIME gives me error:

d244d1ad-fd74-4dfe-b…4-683ccdfd1285:2616 Uncaught (in promise) ReferenceError: ABORT is not defined
    at Object.handleSleep

Without MINIMAL_RUNTIME everything works fine. I think that the code introducing this error is emscripten_sleep(100). What js library should I include to compile args?

[juj]

emscripten_sleep() requires ASYNCIFY support, which MINIMAL_RUNTIME was not compatible with. PR to add that support is at #22501 .