$NetBSD: patch-configure,v 1.3 2015/12/08 17:23:21 jperkin Exp $

Use $as_echo to support escape sequences correctly.

--- configure.orig	2015-12-08 11:18:14.016272933 +0000
+++ configure
@@ -26310,26 +26310,26 @@ else
   { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&5
 $as_echo "$as_me: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&6;}
   if test -f $ac_prefix_conf_INP ; then
-    echo "s/#undef  *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]\\)/#undef $ac_prefix_conf_UPP""_\\1/" > conftest.prefix
+    $as_echo "s/#undef  *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]\\)/#undef $ac_prefix_conf_UPP""_\\1/" > conftest.prefix
     # no! these are things like socklen_t, const, vfork
     # echo "s/#undef  *\\([m4_cr_letters]\\)/#undef $_LOW""_\\1/" >> _script
-    echo "s/#define  *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_UPP""_\\1 \\" >> conftest.prefix
-    echo "#define $ac_prefix_conf_UPP""_\\1 \\2 \\" >> conftest.prefix
-    echo "#endif/" >>conftest.prefix
+    $as_echo "s/#define  *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_UPP""_\\1 \\" >> conftest.prefix
+    $as_echo "#define $ac_prefix_conf_UPP""_\\1 \\2 \\" >> conftest.prefix
+    $as_echo "#endif/" >>conftest.prefix
     # no! these are things like socklen_t, const, vfork
     # echo "s/#def[]ine  *\\([m4_cr_letters][_symbol]*\\)\\(.*\\)/#ifndef $_LOW""_\\1 \\" >> _script
     # echo "#define $_LOW""_\\1 \\2 \\" >> _script
     # echo "#endif/" >> _script
     # now executing _script on _DEF input to create _OUT output file
-    echo "#ifndef $ac_prefix_conf_DEF"      >$tmp/pconfig.h
-    echo "#define $ac_prefix_conf_DEF 1" >>$tmp/pconfig.h
-    echo ' ' >>$tmp/pconfig.h
-    echo /'*' $ac_prefix_conf_OUT. Generated automatically at end of configure. '*'/ >>$tmp/pconfig.h
+    $as_echo "#ifndef $ac_prefix_conf_DEF"      >$tmp/pconfig.h
+    $as_echo "#define $ac_prefix_conf_DEF 1" >>$tmp/pconfig.h
+    $as_echo ' ' >>$tmp/pconfig.h
+    $as_echo /'*' $ac_prefix_conf_OUT. Generated automatically at end of configure. '*'/ >>$tmp/pconfig.h
 
     sed -f conftest.prefix $ac_prefix_conf_INP >>$tmp/pconfig.h
-    echo ' ' >>$tmp/pconfig.h
-    echo '/* once:' $ac_prefix_conf_DEF '*/' >>$tmp/pconfig.h
-    echo "#endif" >>$tmp/pconfig.h
+    $as_echo ' ' >>$tmp/pconfig.h
+    $as_echo '/* once:' $ac_prefix_conf_DEF '*/' >>$tmp/pconfig.h
+    $as_echo "#endif" >>$tmp/pconfig.h
     if cmp -s $ac_prefix_conf_OUT $tmp/pconfig.h 2>/dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_prefix_conf_OUT is unchanged" >&5
 $as_echo "$as_me: $ac_prefix_conf_OUT is unchanged" >&6;}