I wanted to mess around with OSSubprocess (written by Mariano Martinez Peck) from my Pharo 6.1 on my CentOS 7.4.
I searched within the Pharo Project Catalog
Pharo Project Catalog
This seems related to a question asked here: http://forum.world.st/Pharo-download-with-wget-td5099253.html
The suggested solution in the thread and the one that also works for me is to created a symbolic link:
ln -s /usr/lib64/libcurl.so.4 /usr/lib64/libcurl-gnutls.so.4