c++ - Emscripten 1.34.1 Issue -

things working fine in emscripten build 1.29.0 after upgrading 1.34.1, following error:

1>  traceback (most recent call last): 1>    file "c:\program files\emscripten\emscripten\1.34.1\\emcc", line 1260, in <module> 1>      shared.building.llvm_opt(final, link_opts) 1>    file "c:\program files\emscripten\emscripten\1.34.1\tools\shared.py", line 1429, in llvm_opt 1>      assert os.path.exists(target), 'failed run llvm optimizations: ' + output 1>  assertionerror: failed run llvm optimizations:  1>c:\program files (x86)\msbuild\microsoft.cpp\v4.0\platforms\emscripten\microsoft.cpp.emscripten.targets(117,5): error msb6006: "c:\program files\emscripten\emscripten\1.34.1\emcc.bat" exited code 1. 

one cause concern reading line changelog, , not knowing approach or process if following not being used (i'm using vs2010):

 - enabled native js optimizer built automatically on windows, requires vs2012 or vs2013.  

if know why things don't work, after uninstalling , re-installing , cleaning source, please let me know!

this appear regression in 1.34.1. had exact same issue. after upgrading 1.34.6 error went away. don't commit fixed suggest update 1.34.6+.