The current stable version of openFrameworks is 0.9.8 and it does not compile on some versions of Debian like Strech or Arch Linux (in my case). You are free to install the nightly version of openFrameworks but it could be that some addons is not compatible or does not work well.
If you have a compilation error like ^ Received error ^ it means that the version 1.6.0 of poco provided with openFrameworks is not compatible with the new version of openSSL (1.0).
To correct this problem you have to edit the poco.sh file located in scripts/apothecary/formulas/poco/poco.sh and replace the version number 1.6.0 with 1.7.7 in the following two lines and run install_dependencies.sh