:group 'c-macro)
(defcustom c-macro-preprocessor
- ;; 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.
+ (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")
- ((file-exists-p "/usr/ccs/lib/cpp") "/usr/ccs/lib/cpp -C")
- ((eq system-type 'darwin) "cpp -C")
- (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)