Bug Building for OSX (StandaloneOSX) from Linux.

Hi,
I didn't know where to post this. So maybe this is the wrong place. Kindly let me know.
This morning, I was trying to build a project from linux (pop_os 19.04) to OSX, and came upon this error:

-----CompilerOutput:-stderr----------

<my home directory>/Tools/2019.3.0b8/Editor/Data/Tools/RoslynScripts/unity_csc.sh: line 76: [: missing `]'

Upon further investigation, that line is:

if [ $VERMAJOR -gt 8 ] && [ $VERMIN -gt 7]; then

as you can see, it is missing a whitespace after "-gt 7" and should be:

if [ $VERMAJOR -gt 8 ] && [ $VERMIN -gt 7 ]; then

instead.
after correcting the script and rerunning my build, I get the following error:

Error building player because build target was unsupported

This is the script line I used for my build:

BuildPipeline.BuildPlayer(scenes, pathToDeploy, BuildTarget.StandaloneOSX, BuildOptions.None);

Also, I have installed the macOS build targets along with unity
Is building for macOS unsupported from Linux?