--- autoconf-2.69/tests/foreign.at.orig	2012-03-07 18:35:26.000000000 +0100
+++ autoconf-2.69/tests/foreign.at	2017-01-31 16:34:36.105261591 +0100
@@ -57,7 +57,7 @@
 # Make sure at-path contains something valid, and let the test suite
 # display it when verbose.  And fail, skipping would too easily hide
 # problems.
-AT_CHECK([sed -n ["s,^.*\`\\(/[^']*\\)'.*,\\1,p"] stdout], [0], [stdout])
+AT_CHECK([sed -n ["s,^.*[\`']\\(/[^']*\\)'.*,\\1,p"] stdout], [0], [stdout])
 AT_CHECK([test -f "`sed -n 1p stdout`"])
 
 # Older libtoolize installed everything but install-sh...
--- autoconf-2.69/tests/local.at.orig	2017-01-31 19:18:28.760150997 +0100
+++ autoconf-2.69/tests/local.at	2017-01-31 19:35:48.663569282 +0100
@@ -324,7 +324,7 @@
       [AWK|LEX|LEXLIB|LEX_OUTPUT_ROOT|LN_S|M4|MKDIR_P|RANLIB|SET_MAKE|YACC],
       [GREP|[EF]GREP|SED],
       [[_@]|.[*#?$].],
-      [argv|ARGC|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS|BASHPID|EPOCHREALTIME]))=' \
+      [argv|ARGC|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS|BASHPID|EPOCHREALTIME|KSH_MATCH]))=' \
      $act_file ||
        test $? -eq 1 || echo failed >&2
     ) 2>stderr-$act_file |
@@ -381,6 +381,7 @@
 	/^RANDOM=/ d
 	/^SECONDS=/ d
 	/^BASHPID=/ d
+	/^KSH_MATCH=/ d
 	/^EPOCHREALTIME=/ d
 	/'\'\\\$\''=/ d
 	/^argv=/ d
--- autoconf-2.69/tests/m4sh.at.orig	2012-03-07 18:35:26.000000000 +0100
+++ autoconf-2.69/tests/m4sh.at	2017-01-31 21:50:56.350739217 +0100
@@ -237,7 +237,7 @@
 [[AS@&t@_INIT
 m4@&t@_divert_text([], [
 if $2; then
-  AS@&t@_UNSET([LINENO])
+  { LINENO=0; unset LINENO;}
 fi
 ])
 AS@&t@_LINENO_PREPARE