add test

t/perl_mm_opt.t

@@ -0,0 +1,63 @@
+use strict;
+# compatible use warnings
+BEGIN{ if (not $] < 5.006) { require warnings; warnings->import } }
+
+use lib 't/lib';
+use IO::CaptureOutput qw(capture);
+use Config;
+
+use File::Spec;
+use Test::More;
+
+my($debug, $stdout, $stderr) = ($ENV{DEVEL_CHECKLIB_DEBUG} || 0);
+my $libdir;
+
+eval "use Devel::CheckLib";
+if($@ =~ /Couldn't find your C compiler/) { #'
+    plan skip_all => "Couldn't find your C compiler";
+}
+
+eval "use Helper qw(create_testlib)";
+if($libdir = create_testlib("bazbam")) {
+    plan tests => 2;
+} else {
+    plan skip_all => "Couldn't build a library to test against";
+};
+
+my $runtime = '-l'.(
+    $^O eq 'MSWin32'                       # if Win32 (not Cygwin) ...
+        ? (
+            $Config{cc} =~ /(^|^\w+ )bcc/
+                ? 'cc3250'                 # ... Borland
+                : 'msvcrt'                 # ... otherwise assume Microsoft
+          )
+        : 'm'                              # default to Unix-style
+);
+local $ENV{PERL_MM_OPT} = $runtime;
+
+my $rval = undef;
+capture(
+    sub { $rval = system(
+        $Config{perlpath},
+	'-Mblib',
+	'-MDevel::CheckLib',
+	'-e',
+	"print @ARGV;assert_lib(debug => $debug)")},
+    \$stdout,
+    \$stderr
+);
+ok($stderr eq '' && defined($rval) && $rval == 0, "linked OK: ".$ENV{PERL_MM_OPT}) || diag("\tSTDOUT: $stdout\n\tSTDERR: $stderr\n");
+
+$rval = undef;
+local $ENV{PERL_MM_OPT} = "$runtime -lbazbam -L$libdir";
+capture(
+    sub { $rval = system(
+        $Config{perlpath},
+	'-Mblib',
+	'-MDevel::CheckLib',
+	'-e',
+	"print @ARGV;assert_lib(debug => $debug)")},
+    \$stdout,
+    \$stderr
+);
+ok($stderr eq '' && defined($rval) && $rval == 0, "linked OK: ".$ENV{PERL_MM_OPT}) || diag("\tSTDOUT: $stdout\n\tSTDERR: $stderr\n");