AC_CHECK_FUNCS(gethostname getdomainname dup2 \
rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
-random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime res_init setsid \
+random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime setsid \
strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
utimes setrlimit setpgid getcwd getwd shutdown getaddrinfo \
__fpending mblen mbrlen mbsinit strsignal setitimer ualarm index rindex \
# than to expect to find it in ncurses.
AC_CHECK_LIB(ncurses, tparm)
+# Do we have res_init, for detecting changes in /etc/resolv.conf?
+
+resolv=no
+AC_CHECK_FUNC(res_init, have_res_init=yes, have_res_init=no)
+if test "$have_res_init" = no; then
+ OLIBS="$LIBS"
+ LIBS="$LIBS -lresolv"
+ AC_MSG_CHECKING(for res_init with -lresolv)
+ AC_TRY_LINK([#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h> ],
+ [res_init();],
+ have_res_init=yes, have_res_init=no)
+ AC_MSG_RESULT($have_res_init)
+ if test "$have_res_init" = yes ; then
+ resolv=yes
+ fi
+ LIBS="$OLIBS"
+fi
+
+if test "$have_res_init" = yes; then
+ AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
+fi
+
# Do we need the Hesiod library to provide the support routines?
if test "$with_hesiod" = yes ; then
# Don't set $LIBS here -- see comments above.
- resolv=no
AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
[AC_CHECK_LIB(resolv, res_send, resolv=yes,
[AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
if test "$resolv" = yes ; then
RESOLVLIB=-lresolv
- AC_DEFINE(HAVE_LIBRESOLV, 1,
- [Define to 1 if you have the resolv library (-lresolv).])
else
RESOLVLIB=
fi
:, $RESOLVLIB)])
fi
+# Do we need libresolv (due to res_init or Hesiod)?
+if test "$resolv" = yes ; then
+ AC_DEFINE(HAVE_LIBRESOLV, 1,
+ [Define to 1 if you have the resolv library (-lresolv).])
+fi
+
# These tell us which Kerberos-related libraries to use.
if test "${with_kerberos+set}" = set; then
AC_CHECK_LIB(com_err, com_err)