Found the culprit for the warning:
https://github.com/emscripten-core/emscripten/blob/a51cda8f97accdb42449e3e810a702d8007e2512/tools/shared.py#L392-L396:
def expected_llvm_version():
if get_llvm_target() == WASM_TARGET:
return "9.0"
else:
return "6.0"
In the one place where this is called, the return value is ignored, so I
guess the warning can be ignored.
Not sure about the other problems though, for my missing JS functions, I
guess the EM_JS() mechanism hasn't been fixed yet for the clang backend,
and I can't reproduce the loading problems you're seeing.
However: maybe you should try the "emrun" method for testing, this opens a
local webserver:
https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html
...thinking about it, this is most likely the problem. E.g. double-clicking
the .html file definitely doesn't work for running .wasm applications.
Cheers,
-Floh.
On Thursday, 4 April 2019 14:53:27 UTC+2, Floh wrote:
>
> I'm seeing the same messages on macOS (but I'm getting a runnable program,
> despite the error messages), here's what I'm doing:
>
> - install the standard llvm 8.0 toolchain with 'brew install llvm'
> - change LLVM_ROOT in .emscripten to LLVM_ROOT='/usr/local/opt/llvm/bin'
> - from here on as usual...
>
> The cmake generation phase seems to work, cmakes test-compiles for
> compiler-detection work, and it is picking up the right compiler:
>
> -- The C compiler identification is Clang 8.0.0
> -- The CXX compiler identification is Clang 8.0.0
>
> ...but when compiling the project I'm getting the same messages:
>
> shared:WARNING: LLVM version appears incorrect (seeing "8.0", expected
> "9.0")
>
> ...and later when linking it doesn't find my EM_JS() functions, e.g.:
>
> error: undefined symbol: _sapp_js_create_textfield
> error: undefined symbol: _sapp_js_focus_textfield
> error: undefined symbol: _sapp_js_unfocus_textfield
>
> Switching off ERROR_ON_UNDEFINED_SYMBOLS I'm getting a running program out
> of this however (those JS functions aren't actually called in the simple
> "Hello Triangle" program I'm testing).
>
> -Floh.
>
> On Thursday, 4 April 2019 10:00:46 UTC+2, Chuck H wrote:
>>
>> Hi,
>>
>> I am new to Emscripten and currently I am trying to use LLVM WebAssembly
>> Backend in the Emscripting following the tutorial
>> https://emscripten.org/docs/compiling/WebAssembly.html
>> However, when I run the command "emcc tests/hello_world.cpp -o test.html"
>> on Windows, I get this warning "shared:WARNING: LLVM version appears
>> incorrect (seeing "8.0", expected "9.0")".
>> Moreover, when I open the test.html, the following errors appear in the
>> webpage:
>>
>> both async and sync fetching of the wasm failed
>> abort("both async and sync fetching of the wasm failed") at Error
>> at jsStackTrace
>> (file:///C:/Users/Desktop/test/emsdk/emscripten/1.38.30/test.js:1140:13)
>> at stackTrace
>> (file:///C:/Users/Desktop/test/emsdk/emscripten/1.38.30/test.js:1157:12)
>> at abort
>> (file:///C:/Users/Desktop/test/emsdk/emscripten/1.38.30/test.js:2453:44)
>> at getBinary
>> (file:///C:/Users/Desktop/test/emsdk/emscripten/1.38.30/test.js:1573:5)
>> at
>> file:///C:/Users/Desktop/test/emsdk/emscripten/1.38.30/test.js:1587:14
>>
>> So what is the issue here? is it because I am using LLVM 8.0.0?
>>
>
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