Dear Autoconf list,
I have written an Autoconf test to detect an `id' program accepting -g
-n and -u -n. This tests works fine on FreeBSD (7.2 and 8.1) and some
version of Solaris, but not on some Linux. I am very unexperimented in
writing Autoconf macros, so I would need some help to figure out what is
going wrong and how to fix it. In advance, thanks!
I need a macro that checks for a `id' program able to print the user id
and the the group id in symbolic form: the candidate program must pass
the test
$ac_cv_path_ID_v -g \
&& $ac_cv_path_ID_v -g -n \
&& $ac_cv_path_ID_v -u \
&& $ac_cv_path_ID_v -u -n
when ac_cv_path_ID_v points to the candidate. Hence I wrote the
following test:
-8<---
# AC_PROG_ID
# ----------
AC_DEFUN([AC_PROG_ID],
[AC_CACHE_CHECK([for id that handles -g, -u and -n], ac_cv_path_ID,
[ac_cv_path_ID=no
for ac_cv_path_ID_v in id /usr/xpg4/bin/id 'command -p id'; do
if test "$ac_cv_path_ID" = "no"; then
( $ac_cv_path_ID_v -g && $ac_cv_path_ID_v -g -n &&
$ac_cv_path_ID_v -u && $ac_cv_path_ID_v -u -n ) 2>&- 1>&- &&
ac_cv_path_ID="$ac_cv_path_ID_v"
fi
done;])
ID="$ac_cv_path_ID"
AC_SUBST([ID])
])
-8<---
Of course, I did not write it all by myself, but copied an existing
macro and modified what seemed to require it. When I tried my script at
my workplace---where I have to use some version of Ubuntu, the variable
`ID' was filled up with the value `no' while the `id' command passes the
test---when I check it at the command line. My `configure' script was
produced by GNU Autoconf 2.62.
Your help would be much appreciated!
--
Best regards,
Michael
_______________________________________________
Autoconf mailing list
Autoconf@xxxxxxx
http://lists.gnu.org/mailman/listinfo/autoconf
