Honor environmental variables when using TAP::Harness directly

Note that this increases the dependency on TAP::Harness to 3.29

Author: Leont

Build.PL

@@ -38,7 +38,7 @@ my $build = ModuleBuildBuilder->new(
   build_requires        => {
     'File::Temp'            => 0.15,    # tmpdir() + fixes
     'Test::More'            => 0.49,
-    'Test::Harness'         => 3.16,    # PERL5LIB fixes
+    'TAP::Harness'          => 3.29,    # TAP::Harness::Env
     'Parse::CPAN::Meta'     => '1.4401',
     'CPAN::Meta::YAML'      => 0.003,
   },
@@ -62,7 +62,7 @@ my $build = ModuleBuildBuilder->new(
     'Text::Abbrev'          => 0,
     'Text::ParseWords'      => 0,
     'Getopt::Long'          => 0,
-    'Test::Harness'         => 0,
+    'TAP::Harness'          => 3.29,
     'CPAN::Meta'            => '2.142060',
     'Perl::OSType'          => ( $^O eq 'bitrig' ? 1.004 : 1 ), # needs 1.0 API
     'version'               => 0.87,  # No longer requires M::B

Changes

@@ -1,5 +1,7 @@
 Revision history for Perl extension Module::Build.
 
+  - Honor environmental variables when using TAP::Harness directly [Leon Timmermans]
+
   - Reintroduce some level of perl 5.6 support [Leon Timmermans]
     Note that this comes with no guarantees or commitment
 

lib/Module/Build/Base.pm

@@ -2718,11 +2718,11 @@ sub do_tests {
 sub run_tap_harness {
   my ($self, $tests) = @_;
 
-  require TAP::Harness;
+  require TAP::Harness::Env;
 
   # TODO allow the test @INC to be set via our API?
 
-  my $aggregate = TAP::Harness->new({
+  my $aggregate = TAP::Harness::Env->create({
     lib => [@INC],
     verbosity => $self->{properties}{verbose},
     switches  => [ $self->harness_switches ],