On 11/14/23, Michał Kruszewski via <groff@gnu.org> wrote: > What is more, when the user types .PDFHREF, there is no warning or error.
It's longstanding roff practice to silently ignore undefined macro calls. $ echo .TOTAL-GARBAGE-KJSFHUWER | groff $ But you can enable warnings for this. As Deri suggests, you can supply the -ww flag, which enables all warnings. Or you can take a more targeted approach and enable only warnings for undefined macros/strings/diversions with -wmac: $ echo .TOTAL-GARBAGE-KJSFHUWER | groff -wmac troff:<standard input>:1: warning: macro 'TOTAL-GARBAGE-KJSFHUWER' not defined $ Groff also lets you enable warnings (all, or specific ones) within the document, so you don't have to type command-line flags every time you run it. See the .warn request.
