Variable: etags-program-name
etags-program-name is a variable defined in callproc.c.
Value
"etags"
Documentation
Name of the etags program distributed with Emacs.
Use this instead of calling etags directly, as etags may have been
renamed to comply with executable naming restrictions on the system.
Probably introduced at or before Emacs version 30.1.
Source Code
// Defined in /usr/src/emacs/src/callproc.c
DEFVAR_LISP ("etags-program-name", Vetags_program_name,
doc: /* Name of the `etags' program distributed with Emacs.
Use this instead of calling `etags' directly, as `etags' may have been
renamed to comply with executable naming restrictions on the system. */);