-#serial 1
+#serial 4
dnl From Jim Meyering.
-dnl Determine whether chown accepts arguments of -1 for gid and uid.
+dnl Determine whether chown accepts arguments of -1 for uid and gid.
dnl If it doesn't, arrange to use the replacement function.
dnl
-dnl If you use this macro in a package, you should
-dnl add the following two lines to acconfig.h:
-dnl /* Define to rpl_chown if the replacement function should be used. */
-dnl #undef chown
-dnl
AC_DEFUN(jm_FUNC_CHOWN,
[AC_REQUIRE([AC_TYPE_UID_T])dnl
AC_CACHE_CHECK([for working chown], jm_cv_func_working_chown,
[AC_TRY_RUN([
# include <sys/types.h>
+# include <sys/stat.h>
# include <fcntl.h>
# ifdef HAVE_UNISTD_H
# include <unistd.h>
main ()
{
char *f = "conftestchown";
+ struct stat before, after;
+
if (creat (f, 0600) < 0)
exit (1);
- exit (chown (f, (gid_t) -1, (uid_t) -1) == -1 ? 1 : 0);
+ if (stat (f, &before) < 0)
+ exit (1);
+ if (chown (f, (uid_t) -1, (gid_t) -1) == -1)
+ exit (1);
+ if (stat (f, &after) < 0)
+ exit (1);
+ exit ((before.st_uid == after.st_uid
+ && before.st_gid == after.st_gid) ? 0 : 1);
}
],
jm_cv_func_working_chown=yes,
jm_cv_func_working_chown=no)
])
if test $jm_cv_func_working_chown = no; then
- LIBOBJS="$LIBOBJS chown.o"
- AC_DEFINE_UNQUOTED(chown, rpl_chown)
+ AC_SUBST(LIBOBJS)
+ LIBOBJS="$LIBOBJS chown.$ac_objext"
+ AC_DEFINE_UNQUOTED(chown, rpl_chown,
+ [Define to rpl_chown if the replacement function should be used.])
fi
])