Variable: compilation-warning-face
compilation-warning-face is a variable defined in compile.el.gz.
Value
compilation-warning
Documentation
Face name to use for file name in warning messages.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/compile.el.gz
(defvar compilation-warning-face 'compilation-warning
"Face name to use for file name in warning messages.")