diff --git a/configure b/configure
index 7481efeaddc..ee3ff28ed37 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 78782 .
+# From configure.in Revision: 78818 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 3.2.
 #
@@ -3831,7 +3831,7 @@ else
   { echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6; }
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 
 
@@ -5406,7 +5406,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 else
   ac_cv_header_stdc=no
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 fi
 
@@ -5427,7 +5427,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 else
   ac_cv_header_stdc=no
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 fi
 
@@ -6527,7 +6527,7 @@ _ACEOF
 
 
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 { echo "$as_me:$LINENO: result: $was_it_defined" >&5
 echo "${ECHO_T}$was_it_defined" >&6; }
@@ -7057,7 +7057,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 else
   ac_cv_type_uid_t=no
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 fi
 { echo "$as_me:$LINENO: result: $ac_cv_type_uid_t" >&5
@@ -15398,31 +15398,7 @@ echo "${ECHO_T}no" >&6; }
 fi
 
 
-# Check for use of the system expat library
-{ echo "$as_me:$LINENO: checking for --with-system-expat" >&5
-echo $ECHO_N "checking for --with-system-expat... $ECHO_C" >&6; }
-
-# Check whether --with-system_expat was given.
-if test "${with_system_expat+set}" = set; then
-  withval=$with_system_expat;
-fi
-
-
-{ echo "$as_me:$LINENO: result: $with_system_expat" >&5
-echo "${ECHO_T}$with_system_expat" >&6; }
-
-# Check for use of the system libffi library
-{ echo "$as_me:$LINENO: checking for --with-system-ffi" >&5
-echo $ECHO_N "checking for --with-system-ffi... $ECHO_C" >&6; }
-
-# Check whether --with-system_ffi was given.
-if test "${with_system_ffi+set}" = set; then
-  withval=$with_system_ffi;
-fi
-
-
-if test "$with_system_ffi" = "yes"; then
-    if test -n "$ac_tool_prefix"; then
+if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
 { echo "$as_me:$LINENO: checking for $ac_word" >&5
@@ -15524,6 +15500,31 @@ else
   PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
 fi
 
+
+# Check for use of the system expat library
+{ echo "$as_me:$LINENO: checking for --with-system-expat" >&5
+echo $ECHO_N "checking for --with-system-expat... $ECHO_C" >&6; }
+
+# Check whether --with-system_expat was given.
+if test "${with_system_expat+set}" = set; then
+  withval=$with_system_expat;
+fi
+
+
+{ echo "$as_me:$LINENO: result: $with_system_expat" >&5
+echo "${ECHO_T}$with_system_expat" >&6; }
+
+# Check for use of the system libffi library
+{ echo "$as_me:$LINENO: checking for --with-system-ffi" >&5
+echo $ECHO_N "checking for --with-system-ffi... $ECHO_C" >&6; }
+
+# Check whether --with-system_ffi was given.
+if test "${with_system_ffi+set}" = set; then
+  withval=$with_system_ffi;
+fi
+
+
+if test "$with_system_ffi" = "yes" && test -n "$PKG_CONFIG"; then
     LIBFFI_INCLUDEDIR="`"$PKG_CONFIG" libffi --cflags-only-I 2>/dev/null | sed -e 's/^-I//;s/ *$//'`"
 else
     LIBFFI_INCLUDEDIR=""
@@ -15726,7 +15727,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 else
   unistd_defines_pthreads=no
 fi
-rm -f -r conftest*
+rm -f conftest*
 
     { echo "$as_me:$LINENO: result: $unistd_defines_pthreads" >&5
 echo "${ECHO_T}$unistd_defines_pthreads" >&6; }
@@ -17024,7 +17025,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
   $EGREP "yes" >/dev/null 2>&1; then
   ipv6type=$i
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		kame)
@@ -17047,7 +17048,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 				ipv6libdir=/usr/local/v6/lib
 				ipv6trylibc=yes
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		linux-glibc)
@@ -17068,7 +17069,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
   ipv6type=$i;
 				ipv6trylibc=yes
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		linux-inet6)
@@ -17106,7 +17107,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 				ipv6lib=inet6;
 				ipv6libdir=/usr/local/v6/lib
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		v6d)
@@ -17129,7 +17130,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 				ipv6libdir=/usr/local/v6/lib;
 				BASECFLAGS="-I/usr/local/v6/include $BASECFLAGS"
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		zeta)
@@ -17151,7 +17152,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 				ipv6lib=inet6;
 				ipv6libdir=/usr/local/v6/lib
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 			;;
 		esac
@@ -25666,7 +25667,7 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
-rm -f -r conftest*
+rm -f conftest*
 
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
@@ -25685,7 +25686,7 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 fi
 
@@ -25955,7 +25956,7 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
-rm -f -r conftest*
+rm -f conftest*
 
 fi
 
diff --git a/configure.in b/configure.in
index 7c7647980eb..415a35f41c0 100644
--- a/configure.in
+++ b/configure.in
@@ -1914,6 +1914,8 @@ LIBS="$withval $LIBS"
 ],
 [AC_MSG_RESULT(no)])
 
+AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+
 # Check for use of the system expat library
 AC_MSG_CHECKING(for --with-system-expat)
 AC_ARG_WITH(system_expat,
@@ -1926,8 +1928,7 @@ AC_MSG_CHECKING(for --with-system-ffi)
 AC_ARG_WITH(system_ffi,
             AC_HELP_STRING(--with-system-ffi, build _ctypes module using an installed ffi library))
 
-if test "$with_system_ffi" = "yes"; then
-    AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+if test "$with_system_ffi" = "yes" && test -n "$PKG_CONFIG"; then
     LIBFFI_INCLUDEDIR="`"$PKG_CONFIG" libffi --cflags-only-I 2>/dev/null | sed -e 's/^-I//;s/ *$//'`"
 else
     LIBFFI_INCLUDEDIR=""