Allow system npm in "emsdk install emscripten" #723
Merged
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"emsdk install emscripten-master-64bit" is currently dependent on whether emscripten node is installed or not.
This change allow using system-provided node / npm command to proceed the installation. Also clarify the error message.
Other alternatives:
#640 maybe addresses this for a different reason
I don't think #714 addresses this
Another alternative is to provide node.js in source form (and compile it) if "emsdk install emscripten" must use emscripten node / npm, to which also can address #623