configure.in:

  FreeBSD "ps" detection usually failed, in 90% cases,
  on FreeBSD-5.1. This change should work fine under
  5.x and 4.x, and I believe in 3.x. too. 

configure.in

@@ -452,6 +452,9 @@ then
   FIND_PROC="$PS \$\$PID | grep mysqld > /dev/null"
 else
   case $SYSTEM_TYPE in
+    *freebsd*)
+      FIND_PROC="$PS p \$\$PID | grep mysqld > /dev/null"
+      ;;
     *darwin*)
       FIND_PROC="$PS -uaxww | grep mysqld | grep \" \$\$PID \" > /dev/null"
       ;;