#pragma options tabsize
Sets the default tab length, for the purposes of reporting the column number in error messages.
-qtabsize=8
This option only affects error messages that specify the column number at which an error occurred.
None.
xlc myprogram.c -qtabsize=1
In
this case, you can consider one character position (where each character
and each tab equals one position, regardless of tab length) as being
equivalent to one character column.