Update to rra-c-util 8.2 and C TAP Harness 4.7

Update to rra-c-util 8.2:

* Implement explicit_bzero with memset if it is not available.
* Reformat all C source using clang-format 10.
* Work around Test::Strict not skipping .git directories.
* Fix warnings with perltidy 20190601 and Perl::Critic 1.134.
* Fix warnings with Clang 10, GCC 10, and the Clang static analyzer.

Update to C TAP Harness 4.7:

* Fix warnings with GCC 10.
* Reformat all C source using clang-format 10.
* Fixed malloc error checking in bstrndup.

1 files changed, 38 insertions, 12 deletions

diff --git a/perl/t/style/strict.t b/perl/t/style/strict.t
index a3d2a3e..a87c1fa 100755
--- a/perl/t/style/strict.t
+++ b/perl/t/style/strict.t
@@ -6,7 +6,7 @@
 # which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2016 Russ Allbery <eagle@eyrie.org>
+# Copyright 2016, 2018-2019 Russ Allbery <eagle@eyrie.org>
 # Copyright 2013-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
@@ -30,15 +30,16 @@
 #
 # SPDX-License-Identifier: MIT
 
-use 5.006;
+use 5.008;
 use strict;
 use warnings;
 
 use lib 't/lib';
 
-use File::Spec;
 use Test::RRA qw(skip_unless_automated use_prereq);
 
+use File::Spec;
+
 # Skip for normal user installs since this doesn't affect functionality.
 skip_unless_automated('Strictness tests');
 
@@ -46,15 +47,40 @@ skip_unless_automated('Strictness tests');
 # use 5.012 or later automatically implies use strict.
 use_prereq('Test::Strict', '0.25');
 
-# Test everything in the distribution directory except the Build and
-# Makefile.PL scripts generated by Module::Build.  We also want to check use
-# warnings.
-$Test::Strict::TEST_SKIP = ['Build', 'Makefile.PL'];
+# Directories to exclude from checks.
+my %EXCLUDE = map { $_ => 1 } qw(.git blib);
+
+# Determine whether we want to check the given file or top-level directory.
+# Assume that the only interesting files at the top level are directories or
+# files ending in *.PL.
+#
+# $file - Name of the file or directory
+#
+# Returns: 1 if it should be checked, undef otherwise.
+sub should_check {
+    my ($file) = @_;
+    return   if $EXCLUDE{$file};
+    return 1 if -d $file;
+    return 1 if $file =~ m{ [.] PL \z }xms;
+    return;
+}
+
+# Test::Strict (as of 0.47) doesn't have a way of excluding whole directories
+# from all_perl_files_ok and doesn't exclude .git, which results in false
+# positives if there are Perl files unpacked under .git (which is often the
+# case when using dgit).  We therefore can't just point it at the root of the
+# module distribution and instead have to manually construct a list of
+# interesting files.
+opendir(my $rootdir, File::Spec->curdir)
+  or die "$0: cannot open current directory: $!\n";
+my @files = File::Spec->no_upwards(readdir($rootdir));
+closedir($rootdir) or die "$0: cannot close current directory: $!\n";
+my @to_check = grep { should_check($_) } @files;
+
+# Test the files and top-level directories we found, including checking for
+# use warnings.
 $Test::Strict::TEST_WARNINGS = 1;
-all_perl_files_ok(File::Spec->curdir);
+all_perl_files_ok(@to_check);
 
 # Hack to suppress "used only once" warnings.
-END {
-    $Test::Strict::TEST_SKIP     = [];
-    $Test::Strict::TEST_WARNINGS = 0;
-}
+END { $Test::Strict::TEST_WARNINGS = 0 }