Helps to add the perl makefile. Bonus points for including a README

src/bindings/perl/Makefile.PL

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+use ExtUtils::MakeMaker;
+use File::Basename;
+use Config;
+
+# Scons hack...
+chdir(dirname($0));
+
+WriteMakefile(
+    NAME => "hammer",
+    LIBS => ["-lhammer"],
+    OBJECT => 'hammer_wrap.o',
+    INC => '-I../..',
+    CCFLAGS => "$Config{ccflags} -DSWIG -DHAMMER_INTERNAL__NO_STDARG_H -std=gnu99",
+    );
+

src/bindings/perl/README.md

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+Perl Hammer bindings
+====================
+
+To build and run these bindings, you will need to have
+ExtUtils::MakeMaker and make installed. On a Debian system, this just
+means that you need perl installed. On a lesser Linux distribution,
+this may be all you need, but you're on your own. On Windows or
+another UNIX, you're *really* on your own (until we get PRs with
+better instructions).