I try to understand how Visual COBOL works in Eclipse GUI.  I turn verbose mode

I saw this information in the build output windows:

[cobollink] Linking Hello...
[cobollink] cob32 -g -x -t -oHello Hello.o -U
[cobollink] Link complete with no errors
[cobollink]

I can understand purposes about these flags: -g,  -t, -x from