1 files changed, 17 insertions, 2 deletions

diff --git a/configure.in b/configure.in
index f354734..d02d7f8 100644
--- a/configure.in
+++ b/configure.in
@@ -877,10 +877,17 @@ ac_cv_ping_has_timeout=no
 if test -n "$with_ping_command"
 then
         AC_MSG_RESULT([(command-line) $with_ping_command])
-        if test -n "$ac_cv_ping_packets_first"
+        if echo "$with_ping_command" | grep '%d.*%d.*%s' >/dev/null
         then
                 ac_cv_ping_packets_first=yes
                 ac_cv_ping_has_timeout=yes
+        elif echo "$with_ping_command" | grep '%d.*%s.*%d' >/dev/null || \
+             echo "$with_ping_command" | grep '%s.*%d.*%d' >/dev/null
+        then
+                ac_cv_ping_has_timeout=yes
+        elif echo "$with_ping_command" | grep '%d.*%s' >/dev/null
+        then
+                ac_cv_ping_packets_first=yes
         fi
 
 elif [[ "z$ac_cv_uname_s" = "zUnixWare" ]] && \
@@ -981,7 +988,15 @@ ac_cv_ping6_packets_first=no
 if test -n "$with_ping6_command"
 then
         AC_MSG_RESULT([(command-line) $with_ping6_command])
-        if test -n "$ac_cv_ping6_packets_first"
+        if echo "$with_ping6_command" | grep '%d.*%d.*%s' >/dev/null
+        then
+                ac_cv_ping6_packets_first=yes
+        elif echo "$with_ping6_command" | grep '%d.*%s.*%d' >/dev/null || \
+             echo "$with_ping6_command" | grep '%s.*%d.*%d' >/dev/null
+        then
+                # Just keep same logic as ping (IPv4) if we ever need ac_cv_ping6_has_timeout
+                true
+        elif echo "$with_ping6_command" | grep '%d.*%s' >/dev/null
         then
                 ac_cv_ping6_packets_first=yes
         fi