Test, doc, implement XS C++

Author: mohawk2

lib/ExtUtils/MM_Unix.pm

@@ -12,6 +12,7 @@ use DirHandle;
 our %Config_Override;
 our %XS_ext2src = qw(
     xs c
+    xspp cpp
 );
 my $xspat = join '|', keys %XS_ext2src;
 our $XS_extRE = qr/\.($xspat)\z/;

lib/ExtUtils/MakeMaker/FAQ.pod

@@ -520,7 +520,13 @@ This tip has been brought to you by Nick Ing-Simmons and Stas Bekman.
 An alternative way to achieve this can be seen in L<Gtk2::CodeGen>
 and L<Glib::CodeGen>.
 
-=back
+=head3 How can I build my XS files as C++
+
+If you want to write XSUBs in C++, put them in a file called (for class
+Foo::Bar) F<lib/Foo/Bar.xspp>, next to F<lib/Foo/Bar.pm>. In your
+F<Makefile.PL>, give C<XSMULTI> as 1. You will make your distribution
+much more portable, with much less effort for yourself, if you use
+L<ExtUtils::CppGuess> for C++ compiler configuration information.
 
 =head1 DESIGN
 

t/04-xscpp.t

@@ -14,6 +14,8 @@ use Test::More;
 plan skip_all => "ExtUtils::CBuilder not installed or no C++ compiler"
   unless have_cplusplus();
 plan skip_all => 'Dynaloading not enabled' if $Config{usedl} ne 'define';
+plan skip_all => 'No ExtUtils::CppGuess'
+  unless eval { require ExtUtils::CppGuess };
 my @tests = list_cpp();
 plan skip_all => "No tests" unless @tests;
 plan tests => 6 * @tests;

t/lib/MakeMaker/Test/Setup/XS.pm

@@ -313,6 +313,7 @@ sub list_dynamic {
 
 sub list_cpp {
   (
+    [ 'cppbasic', '', '' ],
   );
 }