Index: Modules/_ctypes/libffi/configure
===================================================================
--- Modules/_ctypes/libffi/configure	(revision 77415)
+++ Modules/_ctypes/libffi/configure	(working copy)
@@ -1612,15 +1612,15 @@
     ac_top_srcdir=$ac_top_builddir_sub
     ac_abs_top_srcdir=$ac_pwd ;;
   [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
+    ac_srcdir="$srcdir$ac_dir_suffix"
+    ac_top_srcdir="$srcdir"
+    ac_abs_top_srcdir="$srcdir" ;;
   *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+    ac_srcdir="$ac_top_build_prefix$srcdir$ac_dir_suffix"
+    ac_top_srcdir="$ac_top_build_prefix$srcdir"
+    ac_abs_top_srcdir="$ac_pwd/$srcdir" ;;
 esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+ac_abs_srcdir="$ac_abs_top_srcdir$ac_dir_suffix"
 
     cd "$ac_dir" || { ac_status=$?; continue; }
     # Check for guested configure.
@@ -2169,7 +2169,7 @@
   program_prefix=${target_alias}-
 target_alias=${target_alias-$host_alias}
 
-. ${srcdir}/configure.host
+. "${srcdir}/configure.host"
 
 am__api_version='1.10'
 
@@ -2264,10 +2264,10 @@
 # (eg FreeBSD returns the mod time of the symlink's containing
 # directory).
 if (
-   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
    if test "$*" = "X"; then
       # -L didn't work.
-      set X `ls -t $srcdir/configure conftest.file`
+      set X `ls -t "$srcdir/configure" conftest.file`
    fi
    rm -f conftest.file
    if test "$*" != "X $srcdir/configure conftest.file" \
@@ -2314,7 +2314,7 @@
 # expand $ac_aux_dir to an absolute path
 am_aux_dir=`cd $ac_aux_dir && pwd`
 
-test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} \"$am_aux_dir/missing\""
 # Use eval to expand $SHELL
 if eval "$MISSING --run true"; then
   am_missing_run="$MISSING --run "
@@ -2458,7 +2458,7 @@
   # is not polluted with repeated "-I."
   am__isrc=' -I$(srcdir)'
   # test to see if srcdir already configured
-  if test -f $srcdir/config.status; then
+  if test -f "$srcdir/config.status"; then
     { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
 echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
    { (exit 1); exit 1; }; }
@@ -20351,7 +20351,7 @@
 fi
 
 
- if test -d $srcdir/testsuite; then
+ if test -d "$srcdir/testsuite"; then
   TESTSUBDIR_TRUE=
   TESTSUBDIR_FALSE='#'
 else
@@ -23870,7 +23870,8 @@
   case $ac_mode in
   :L) ac_source=$1;;
   :[FH])
-    ac_file_inputs=
+    # Use an array, to deal with space in paths
+    ac_file_inputs=()
     for ac_f
     do
       case $ac_f in
@@ -23887,7 +23888,7 @@
 echo "$as_me: error: cannot find input file: $ac_f" >&2;}
    { (exit 1); exit 1; }; };;
       esac
-      ac_file_inputs="$ac_file_inputs $ac_f"
+      ac_file_inputs+=("$ac_f")
     done
 
     # Let's still pretend it is `configure' which instantiates (i.e., don't
@@ -23995,15 +23996,15 @@
     ac_top_srcdir=$ac_top_builddir_sub
     ac_abs_top_srcdir=$ac_pwd ;;
   [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
+    ac_srcdir="$srcdir$ac_dir_suffix"
+    ac_top_srcdir="$srcdir"
+    ac_abs_top_srcdir="$srcdir" ;;
   *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+    ac_srcdir="$ac_top_build_prefix$srcdir$ac_dir_suffix"
+    ac_top_srcdir="$ac_top_build_prefix$srcdir"
+    ac_abs_top_srcdir="$ac_pwd/$srcdir" ;;
 esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+ac_abs_srcdir="$ac_abs_top_srcdir$ac_dir_suffix"
 
 
   case $ac_mode in
@@ -24037,7 +24038,7 @@
 /@infodir@/p
 /@localedir@/p
 /@mandir@/p
-' $ac_file_inputs` in
+' "${ac_file_inputs[@]}"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
   { echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
@@ -24076,7 +24077,7 @@
 s&@INSTALL@&$ac_INSTALL&;t t
 s&@MKDIR_P@&$ac_MKDIR_P&;t t
 $ac_datarootdir_hack
-" $ac_file_inputs | sed -f "$tmp/subs-1.sed" | sed -f "$tmp/subs-2.sed" >$tmp/out
+" "${ac_file_inputs[@]}" | sed -f "$tmp/subs-1.sed" | sed -f "$tmp/subs-2.sed" >$tmp/out
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
@@ -24146,7 +24147,7 @@
 # Second one is:	 sed -f defines.sed "$tmp/out1" >"$tmp/out2"
 # Third one will be:	 sed -f defines.sed "$tmp/out2" >"$tmp/out1"
 # et cetera.
-ac_in='$ac_file_inputs'
+ac_in='"${ac_file_inputs[@]}"'
 ac_out='"$tmp/out1"'
 ac_nxt='"$tmp/out2"'
 
@@ -24240,8 +24241,8 @@
 
   # Try a relative symlink, then a hard link, then a copy.
   case $srcdir in
-  [\\/$]* | ?:[\\/]* ) ac_rel_source=$srcdir/$ac_source ;;
-      *) ac_rel_source=$ac_top_build_prefix$srcdir/$ac_source ;;
+  [\\/$]* | ?:[\\/]* ) ac_rel_source="$srcdir/$ac_source" ;;
+      *) ac_rel_source="$ac_top_build_prefix$srcdir/$ac_source" ;;
   esac
   ln -s "$ac_rel_source" "$ac_file" 2>/dev/null ||
     ln "$srcdir/$ac_source" "$ac_file" 2>/dev/null ||