libcxx_noexcept issue

[Oliver Larkin]

Hello,

I'm having a problem compiling some C++11 to WASM.

here is my make file:

https://github.com/olilarkin/wdl-ol/blob/iplugquake-wam/Examples/IPlugEffect/Makefile

Do you have any idea why libcxx_noexcept.a might not be compiling, or what i should try?

thanks!

oli

8 warnings generated.

INFO:root:generating system library: libcxx_noexcept.a... (this will be cached in "/Users/oli/.emscripten_cache/asmjs/libcxx_noexcept.a" for subsequent builds)

Traceback (most recent call last):

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/emar", line 13, in <module>

    emar.run()

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/emar.py", line 61, in run

    subprocess.call(newargs)

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 522, in call

    return Popen(*popenargs, **kwargs).wait()

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__

    errread, errwrite)

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child

    raise child_exception

OSError: [Errno 2] No such file or directory

Traceback (most recent call last):

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/emcc", line 13, in <module>

    emcc.run()

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/emcc.py", line 1417, in run

    extra_files_to_link += system_libs.calculate([f for _, f in sorted(temp_files)] + extra_files_to_link, in_temp, stdout_=None, stderr_=None, forced=forced_stdlibs)

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/system_libs.py", line 493, in calculate

    libfile = shared.Cache.get(name, do_create, extension=suffix)

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/cache.py", line 100, in get

    temp = creator()

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/system_libs.py", line 491, in do_create

    ret = create(name)

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/system_libs.py", line 227, in create_libcxx

    has_noexcept_version=True)

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/system_libs.py", line 99, in build_libcxx

    shared.Building.emar('cr', in_temp(lib_filename), o_s)

  File "/Users/oli/Dev/MyWeb/emsdk-portable/emscripten/1.37.22/tools/shared.py", line 2003, in emar

    assert os.path.exists(output_filename), 'emar could not create output file: ' + output_filename

AssertionError: emar could not create output file: /var/folders/xp/zf2pfh7j38786ph7yr6k03sw0000gn/T/tmpX34sT7/libcxx_noexcept.a

make: *** [IPlugEffect-WAM.js] Error 1

[Alon Zakai]

emar.py calls llvm-ar, so perhaps that doesn't exist or isn't executable?

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[Oliver Larkin]

thanks very much that fixed it, for some reason llvm-ar in my emscripten folder was a dangling alias.

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