1 files changed, 4 insertions, 3 deletions
diff --git a/t/ext.sh b/t/ext.sh
index e64dee3f9..587093337 100644
--- a/t/ext.sh
+++ b/t/ext.sh
@@ -34,10 +34,11 @@ END
 $ACLOCAL
 $AUTOMAKE
 
+$FGREP '%.$(OBJEXT)' Makefile.in  # For debugging.
+
 for ext in f for f90 f95 F F90 F95 r m mm upc; do
-   grep "^\.$ext\.o:" Makefile.in
-   grep "^$ext\.o:" Makefile.in && exit 1
-   : For shells with busted 'set -e'.
+   grep "%.*: %$ext" Makefile.in && exit 1
+   grep "^%\.\$(OBJEXT): %\.$ext$" Makefile.in
 done
 
 :