(ebrowse-revert-tree-buffer-from-file): Use with-no-warnings.

[gnu-emacs] / lisp / progmodes / cmacexp.el

diff --git a/lisp/progmodes/cmacexp.el b/lisp/progmodes/cmacexp.el
index ce21a0287563cf3df9ec1fc85393a5db7b4b9805..65eea658d4ee029a5444dcab3f599ee505a041fa 100644 (file)
--- a/lisp/progmodes/cmacexp.el
+++ b/lisp/progmodes/cmacexp.el
@@ -1,8 +1,8 @@
 ;;; cmacexp.el --- expand C macros in a region
 
-;; Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 1994, 1996, 2000 Free Software Foundation, Inc.
 
-;; Author: Francesco Potorti` <pot@cnuce.cnr.it>
+;; Author: Francesco Potorti` <pot@gnu.org>
 ;; Adapted-By: ESR
 ;; Keywords: c
 
@@ -23,6 +23,8 @@
 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 ;; Boston, MA 02111-1307, USA.
 
+;;; Commentary:
+
 ;; USAGE =============================================================
 
 ;; In C mode C-C C-e is bound to c-macro-expand.  The result of the
@@ -45,7 +47,7 @@
 ;; Put the following in your ~/.emacs file.
 
 ;; If you want the *Macroexpansion* window to be not higher than
-;; necessary: 
+;; necessary:
 ;;(setq c-macro-shrink-window-flag t)
 ;;
 ;; If you use a preprocessor other than /lib/cpp (be careful to set a
@@ -62,7 +64,7 @@
 ;; BUG REPORTS =======================================================
 
 ;; Please report bugs, suggestions, complaints and so on to
-;; pot@cnuce.cnr.it (Francesco Potorti`).
+;; pot@gnu.org (Francesco Potorti`).
 
 ;; IMPROVEMENTS OVER emacs 18.xx cmacexp.el ==========================
 
@@ -84,6 +86,7 @@
 ;; If the start point of the region is inside a macro definition the
 ;; macro expansion is often inaccurate.
 
+;;; Code:
 
 (require 'cc-mode)
 
@@ -105,14 +108,23 @@
   :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")
-       ;; Solaris has it in an unusual place.
+  (cond ;; Solaris has it in an unusual place.
        ((and (string-match "^[^-]*-[^-]*-\\(solaris\\|sunos5\\)"
                            system-configuration)
              (file-exists-p "/opt/SUNWspro/SC3.0.1/bin/acomp"))
         "/opt/SUNWspro/SC3.0.1/bin/acomp -C -E")
-       (t "/lib/cpp -C"))
+        ((locate-file "/usr/ccs/lib/cpp"
+                     '("/") exec-suffixes 'file-executable-p)
+        "/usr/ccs/lib/cpp -C")
+       ((locate-file "/lib/cpp"
+                     '("/") exec-suffixes 'file-executable-p)
+        "/lib/cpp -C")
+       ;; On some systems, we cannot rely on standard directories to
+       ;; find CPP.  In fact, we cannot rely on having cpp, either,
+       ;; in some GCC versions.
+       ((locate-file "cpp" exec-path exec-suffixes 'file-executable-p)
+        "cpp -C")
+       (t "gcc -E -C -o - -"))
   "The preprocessor used by the cmacexp package.
 
 If you change this, be sure to preserve the `-C' (don't strip comments)
@@ -205,7 +217,7 @@ For use inside Lisp programs, see also `c-macro-expansion'."
   (let ((oldwinheight (window-height))
        (alreadythere                   ;the window was already there
         (get-buffer-window (current-buffer)))
-       (popped nil))                   ;the window popped changing the layout 
+       (popped nil))                   ;the window popped changing the layout
     (or alreadythere
        (progn
          (display-buffer (current-buffer) t)
@@ -247,7 +259,7 @@ Optional arg DISPLAY non-nil means show messages in the echo area."
 ;; Preprocess the buffer contents, then look for all the lines stored
 ;; in linelist starting from end of buffer.  The last line so found is
 ;; where START was, so return the substring from point to end of
-;; buffer. 
+;; buffer.
   (let ((inbuf (current-buffer))
        (outbuf (get-buffer-create " *C Macro Expansion*"))
        (filename (if (and buffer-file-name
@@ -265,7 +277,7 @@ Optional arg DISPLAY non-nil means show messages in the echo area."
        (startstat ())
        (startmarker "")
        (exit-status 0)
-       (tempname (make-temp-name
+       (tempname (make-temp-file
                   (expand-file-name "cmacexp"
                                     (or small-temporary-file-directory
                                         temporary-file-directory)))))
@@ -381,4 +393,5 @@ 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