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conan install emsdk/2.0.31@ --build=emsdk --profile=/home/conan/w/BuildSingleReference/54203/2dbc76b6-3c8d-469c-b9af-271d62a292ec/profile.txt
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Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=5
os=Linux
[options]
[build_requires]
[env]

emsdk/2.0.31: Forced build from source
Installing package: emsdk/2.0.31
Requirements
    emsdk/2.0.31 from local cache - Cache
    nodejs/16.3.0 from 'conan-center' - Cache
Packages
    emsdk/2.0.31:2880313eadc30db92089af7733fe8364772ee5c8 - Build
    nodejs/16.3.0:4db1be536558d833e52e862fd84d64d75c2b3656 - Cache

Installing (downloading, building) binaries...
nodejs/16.3.0: Already installed!
nodejs/16.3.0: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/nodejs/16.3.0/_/_/package/4db1be536558d833e52e862fd84d64d75c2b3656/bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
emsdk/2.0.31: Copying sources to build folder
emsdk/2.0.31: Building your package in /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8
emsdk/2.0.31: Generator txt created conanbuildinfo.txt
emsdk/2.0.31: Aggregating env generators
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
emsdk/2.0.31: Calling build()

----Running------
> ./emsdk install releases-upstream-597724ca3f6cd6e84bea73f1f519a3953b5c273d-64bit
-----------------
Installing tool 'releases-upstream-597724ca3f6cd6e84bea73f1f519a3953b5c273d-64bit'..
Downloading: /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/zips/597724ca3f6cd6e84bea73f1f519a3953b5c273d-wasm-binaries.tbz2 from https://storage.googleapis.com/webassembly/emscripten-releases-builds/linux/597724ca3f6cd6e84bea73f1f519a3953b5c273d/wasm-binaries.tbz2, 252981663 Bytes
 [----------------------------------------------------------------------------]
Unpacking '/home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/zips/597724ca3f6cd6e84bea73f1f519a3953b5c273d-wasm-binaries.tbz2' to '/home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/upstream'
Done installing tool 'releases-upstream-597724ca3f6cd6e84bea73f1f519a3953b5c273d-64bit'.

----Running------
> ./emsdk activate releases-upstream-597724ca3f6cd6e84bea73f1f519a3953b5c273d-64bit
-----------------
Setting the following tools as active:
   releases-upstream-597724ca3f6cd6e84bea73f1f519a3953b5c273d-64bit

Next steps:
- To conveniently access emsdk tools from the command line,
  consider adding the following directories to your PATH:
    /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder
    /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/upstream/emscripten
- This can be done for the current shell by running:
    source "/home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/emsdk_env.sh"
- Configure emsdk in your shell startup scripts by running:
    echo 'source "/home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8/source_subfolder/emsdk_env.sh"' >> $HOME/.bash_profile

----Running------
> echo "int main(){}" | em++ -x c++ -
-----------------
emsdk/2.0.31: 
/bin/sh: 1: em++: not found
nodejs/16.3.0: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/nodejs/16.3.0/_/_/package/4db1be536558d833e52e862fd84d64d75c2b3656/lib
emsdk/2.0.31: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8
emsdk/2.0.31: ERROR: Package '2880313eadc30db92089af7733fe8364772ee5c8' build failed
emsdk/2.0.31: WARN: Build folder /home/conan/w/BuildSingleReference/.conan/data/emsdk/2.0.31/_/_/build/2880313eadc30db92089af7733fe8364772ee5c8
ERROR: emsdk/2.0.31: Error in build() method, line 66
	self.run("echo \"int main(){}\" | em++ -x c++ -") # force cache population
	ConanException: Error 127 while executing echo "int main(){}" | em++ -x c++ -