unit-cc: Use the same preamble as other Perl tools.

diff --git a/make/unit-cc.pl b/make/unit-cc.pl
index 66e9b15dcc2356b4c035fc42042f1c5d039198eb..3af6209446a64b8f41dd085e0bdf67936423c8ca 100755 (executable)
--- a/make/unit-cc.pl
+++ b/make/unit-cc.pl
@@ -19,9 +19,14 @@
 #
 
 
+BEGIN {
+       push @INC, $ENV{SOURCEPATH};
+       require 5.10.0;
+}
+
 use strict;
-use warnings;
-BEGIN { push @INC, $ENV{SOURCEPATH}; }
+use warnings FATAL => qw(all);
+
 use make::configure;
 
 chdir $ENV{BUILDPATH};