Well, I'm getting somewhere with Solaris. I can't paste all of the output here (I could to pastebin, but whatevs), but here's a collection of errors and actual progress:

bash-3.2# ./linux_build_setup.sh
tar: directory checksum error
./linux_build_setup.sh: line 46: cd: cx_Freeze-4.3.4: No such file or directory
/opt/csw/bin/python2.7: can't open file 'setup.py': [Errno 2] No such file or directory
tar: cx_Logging-2.1.tar.gz: No such file or directory
./linux_build_setup.sh: line 52: cd: cx_Logging-2.1: No such file or directory
/opt/csw/bin/python2.7: can't open file 'setup.py': [Errno 2] No such file or directory
Collecting psutil (from -r ../resources/require.txt (line 1))
Downloading psutil-5.4.2.tar.gz (411kB)
100% |################################| 419kB 50kB/s
Collecting requests (from -r ../resources/require.txt (line 2))
Downloading requests-2.18.4-py2.py3-none-any.whl (88kB)
100% |################################| 92kB 1.2MB/s