4 dnl If you use this macro in a package, you should
5 dnl add the following two lines to acconfig.h:
6 dnl /* Define to rpl_chown if the replacement function should be used. */
10 AC_DEFUN(jm_FUNC_CHOWN,
11 [AC_REQUIRE([AC_TYPE_UID_T])dnl
12 test -z "$ac_cv_header_unistd_h" \
13 && AC_CHECK_HEADERS(unistd.h)
14 AC_CACHE_CHECK([for working chown], jm_cv_func_working_chown,
16 # include <sys/types.h>
25 char *f = "conftestchown";
26 if (creat (f, 0600) < 0)
28 exit (chown (f, (gid_t) -1, (uid_t) -1) == -1 ? 1 : 0);
31 jm_cv_func_working_chown=yes,
32 jm_cv_func_working_chown=no,
33 dnl When crosscompiling, assume chown is broken.
34 jm_cv_func_working_chown=no)
36 if test $jm_cv_func_working_chown = no; then
37 LIBOBJS="$LIBOBJS chown.o"
38 AC_DEFINE_UNQUOTED(chown, rpl_chown)