Update the test template. A few fixes in run_make_test().

Rename implicit_prereq_eval to patternrules, to be the start of a suite
of tests of pattern rules.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/run_make_tests.pl b/tests/run_make_tests.pl
index a4c4330..9b9104f 100755
--- a/tests/run_make_tests.pl
+++ b/tests/run_make_tests.pl
@@ -76,7 +76,7 @@ sub run_make_test
     }
 
     # Make sure it ends in a newline.
-    $makestring =~ /\n$/s or $makestring .= "\n";
+    $makestring && $makestring !~ /\n$/s and $makestring .= "\n";
 
     # Replace @MAKEFILE@ with the makefile name and @MAKE@ with the path to
     # make
@@ -91,7 +91,7 @@ sub run_make_test
 
   # Do the same processing on $answer as we did on $makestring.
 
-  $answer =~ /\n$/s     or $answer .= "\n";
+  $answer && $answer !~ /\n$/s and $answer .= "\n";
   $answer =~ s/#MAKEFILE#/$makefile/g;
   $answer =~ s/#MAKE#/$make_name/g;