Index: tests/local.at
--- tests/local.at.orig
+++ tests/local.at
@@ -371,6 +371,7 @@ m4_case([$4], [], [], [ignore], [],
         s!^.*/\([^/][^/]*\)\.m4: *[0-9][0-9]*: *!\1.m4: !
         s!^.*/\([^/][^/]*\)\.m4: *[0-9][0-9]*: *[0-9][0-9]*: *!\1.m4: !
         s/ (E[A-Z]*)$//
+        s/: \(.*\) at line \([0-9]*\): include(\(.*\)):/:\1:\2: cannot open `\3'\'':/
     ' stderr-raw >&2]], [0], [], [$4])])
 ])
 
