-errtags

Display the message tag with each warning message.

SPARC:77 x86:77

With this option, the compiler's internal error tag name will appear along with warning messages. The default is not to display the tag.

demo% f77 -errtags ink.f
ink.f:
 MAIN:
"ink.f", line 11: Warning: local variable "i" never used (WDECL_LOCAL_NOTUSED)  <- The warning message's tag name