regen v9_9

configure

@@ -858,6 +858,8 @@ ISC_PLATFORM_NORETURN_PRE
 ISC_PLATFORM_HAVELONGLONG
 ISC_SOCKADDR_LEN_T
 expanded_sysconfdir
+PYTHON_INSTALL_LIB
+PYTHON_INSTALL_DIR
 PYTHON_TOOLS
 COVERAGE
 CHECKDS
@@ -978,6 +980,7 @@ enable_warn_shadow
 enable_warn_error
 enable_developer
 with_python
+with_python_install_dir
 enable_newstats
 enable_rrl
 enable_kqueue
@@ -1710,6 +1713,8 @@ Optional Packages:
   --with-sysroot=DIR Search for dependent libraries within DIR
                         (or the compiler's sysroot if not specified).
   --with-python=PATH      Specify path to python interpreter
+  --with-python-install-dir=PATH
+                          installation directory for Python modules
   --with-openssl=PATH     Build with OpenSSL yes|no|path.
 			  (Required for DNSSEC)
   --with-ecdsa            OpenSSL ECDSA
@@ -11658,6 +11663,14 @@ else
 fi
 
 
+# Check whether --with-python-install-dir was given.
+if test "${with_python_install_dir+set}" = set; then :
+  withval=$with_python_install_dir; use_python_install_dir="$withval"
+else
+  use_python_install_dir="unspec"
+fi
+
+
 python="python python3 python3.5 python3.4 python3.3 python3.2 python2 python2.7"
 
 testargparse='try: import argparse
@@ -11753,8 +11766,19 @@ $as_echo "not found" >&6; }
                                         continue
 				fi
 			done
-			if test "X$PYTHON" = "X"
+			if test "X$PYTHON" != "X"
 			then
+				case "$use_python_install_dir" in
+				unspec)
+					PYTHON_INSTALL_DIR=""
+					PYTHON_INSTALL_LIB=""
+					;;
+				*)
+					PYTHON_INSTALL_DIR="$use_python_install_dir"
+					PYTHON_INSTALL_LIB="--install-lib=$use_python_install_dir"
+					;;
+				esac
+			else
 				{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for python support" >&5
 $as_echo_n "checking for python support... " >&6; }
 				case "$use_python" in
@@ -11854,6 +11878,8 @@ fi
 
 
 
+
+
 #
 # Special processing of paths depending on whether --prefix,
 # --sysconfdir or --localstatedir arguments were given.  What's