Prevent ExtUtils-CBuilder leaving test output on Windows

The link function call in the have_compiler and have_cplusplus tests create
a compilet.def file on Windows which is correctly recorded for cleaning up
when the EU::CB object is destroyed, but if another one gets made in the
meantime then ExtUtils::Mksymlists::Mksymlists moves the first one to
compilet_def.old, which isn't recorded for cleaning up and gets left
behind when the test script has finished. Using a new object each time,
destroying the previous one first, prevents this.

diff --git a/dist/ExtUtils-CBuilder/t/00-have-compiler.t b/dist/ExtUtils-CBuilder/t/00-have-compiler.t
index 581a214..ffb1b04 100644 (file)
--- a/dist/ExtUtils-CBuilder/t/00-have-compiler.t
+++ b/dist/ExtUtils-CBuilder/t/00-have-compiler.t
@@ -23,25 +23,29 @@ require_ok "ExtUtils::CBuilder";
 my $b = eval { ExtUtils::CBuilder->new(quiet => 1) };
 ok( $b, "got CBuilder object" ) or diag $@;
 
-my $bogus_path = 'djaadjfkadjkfajdf';
-my $run_perl = "$perl -e1 --";
 # test missing compiler
-$b->{config}{cc} = $bogus_path;
-$b->{config}{ld} = $bogus_path;
-
-$b->{have_cc} = undef;
-is( $b->have_compiler, 0, "have_compiler: fake missing cc" );
-$b->{have_cxx} = undef;
-is( $b->have_cplusplus, 0, "have_cplusplus: fake missing c++" );
+{
+my $b1 = ExtUtils::CBuilder->new(quiet => 1);
+configure_fake_missing_compilers($b1);
+is( $b1->have_compiler, 0, "have_compiler: fake missing cc" );
+}
+{
+my $b2 = ExtUtils::CBuilder->new(quiet => 1);
+configure_fake_missing_compilers($b2);
+is( $b2->have_cplusplus, 0, "have_cplusplus: fake missing c++" );
+}
 
 # test found compiler
-$b->{config}{cc} = $run_perl;
-$b->{config}{ld} = $run_perl;
-$b->{config}{cxx} = $run_perl;
-$b->{have_cc} = undef;
-is( $b->have_compiler, 1, "have_compiler: fake present cc" );
-$b->{have_cxx} = undef;
-is( $b->have_cplusplus, 1, "have_cpp_compiler: fake present c++" );
+{
+my $b3 = ExtUtils::CBuilder->new(quiet => 1);
+configure_fake_present_compilers($b3);
+is( $b3->have_compiler, 1, "have_compiler: fake present cc" );
+}
+{
+my $b4 = ExtUtils::CBuilder->new(quiet => 1);
+configure_fake_present_compilers($b4);
+is( $b4->have_cplusplus, 1, "have_cpp_compiler: fake present c++" );
+}
 
 # test missing cpp compiler
 
@@ -55,3 +59,22 @@ is( $b->have_cplusplus, 1, "have_cpp_compiler: fake present c++" );
         pass( "OS type not yet listed for $^O" );
     }
 }
+
+sub configure_fake_missing_compilers {
+    my $b = shift;
+    my $bogus_path = 'djaadjfkadjkfajdf';
+    $b->{config}{cc} = $bogus_path;
+    $b->{config}{ld} = $bogus_path;
+    $b->{have_cc} = undef;
+    $b->{have_cxx} = undef;
+}
+
+sub configure_fake_present_compilers {
+    my $b = shift;
+    my $run_perl = "$perl -e1 --";
+    $b->{config}{cc} = $run_perl;
+    $b->{config}{ld} = $run_perl;
+    $b->{config}{cxx} = $run_perl;
+    $b->{have_cc} = undef;
+    $b->{have_cxx} = undef;
+}