Define an UNUSED macro for __attribute((unused))__.

ChangeLog

@@ -1,3 +1,8 @@
+Sun May 19 02:31:11 CDT 2002 Adam Heath <doogie@debian.org>
+
+  * config.h.bot, configure.in, optlib/getopt.c: Define an UNUSED macro,
+    for __attribute__((unused)).
+
 Sun May 19 02:31:11 CDT 2002 Adam Heath <doogie@debian.org>
 
   * optlib/error.h, optlib/getopt.c, utils/start-stop-daemon.c: Use

config.h.bot

@@ -78,6 +78,18 @@
 #define CONSTANT FUNCATTR((ATTRCONST))
 #endif
 
+/* GNU C unused functions, or null. */
+#ifndef ATTRUNUSED
+#ifdef HAVE_GNUC25_UNUSED
+#define ATTRUNUSED
+#else
+#define ATTRUNUSED
+#endif
+#endif
+#ifndef UNUSED
+#define UNUSED FUNCATTR((ATTRUNUSED))
+#endif
+
 /* Declare strerror if we don't have it already. */
 #ifndef HAVE_STRERROR
 const char *strerror(int);

configure.in

@@ -203,6 +203,11 @@ DPKG_CACHED_TRY_COMPILE(__attribute__((,,)),dpkg_cv_c_attribute_supported,,
    AC_MSG_RESULT(yes)
    AC_DEFINE(HAVE_GNUC25_CONST),
    AC_MSG_RESULT(no))
+  DPKG_CACHED_TRY_COMPILE(__attribute__((unused)),dpkg_cv_c_attribute_unused,,
+   [extern int testfunction(int x) __attribute__((unused))],
+   AC_MSG_RESULT(yes)
+   AC_DEFINE(HAVE_GNUC25_UNUSED),
+   AC_MSG_RESULT(no))
   DPKG_CACHED_TRY_COMPILE(__attribute__((format...)),dpkg_cv_attribute_format,,
    [extern int testfunction(char *y, ...) __attribute__((format(printf,1,2)))],
    AC_MSG_RESULT(yes)

optlib/getopt.c

@@ -270,7 +270,7 @@ extern pid_t __libc_pid;
    is valid for the getopt call we must make sure that the ARGV passed
    to getopt is that one passed to the process.  */
 static void
-FUNCATTR(unused)
+UNUSED
 store_args_and_env (int argc, char *const *argv)
 {
   /* XXX This is no good solution.  We should rather copy the args so