X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/e8af40eed41d6c61ea6a0649512c4b09afcb1bfa..5988691b0425d1952aa32734ee4eb0fb8341faf9:/lisp/progmodes/cmacexp.el

diff --git a/lisp/progmodes/cmacexp.el b/lisp/progmodes/cmacexp.el
index a701da6e80..27fe81e451 100644
--- a/lisp/progmodes/cmacexp.el
+++ b/lisp/progmodes/cmacexp.el
@@ -108,8 +108,10 @@
   :group 'c-macro)
 
 (defcustom c-macro-preprocessor
-  ;; Cannot rely on standard directory on MS-DOS to find CPP.
-  (cond ((eq system-type 'ms-dos) "cpp -C")
+  ;; Cannot rely on standard directory on MS-DOS to find CPP.  In
+  ;; fact, cannot rely on having cpp.exe, either, in latest GCC
+  ;; versions.
+  (cond ((eq system-type 'ms-dos) "gcc -E -C -o - -")
 	;; Solaris has it in an unusual place.
 	((and (string-match "^[^-]*-[^-]*-\\(solaris\\|sunos5\\)"
 			    system-configuration)
@@ -385,4 +387,5 @@ Optional arg DISPLAY non-nil means show messages in the echo area."
       ;; Cleanup.
       (kill-buffer outbuf))))
 
+;;; arch-tag: 4f20253c-71ef-4e6d-a774-19087060910e
 ;;; cmacexp.el ends here