I'd like to seperate some *.c/*.h files in YAML::XS. Currently the CPAN distribution looks like this: https://metacpan.org/source/TINITA/YAML-LibYAML-0.77

In the LibYAML directory there are copied files from the libyaml sources plus the bindings to perl (perl_libyaml.{c,h}).
I'd like to separate the libyaml sources into their own directories to make it easy to remove/ignore them and use the installed system libyaml instead, if one wants to.
Here I put the files into LibYAML/src and LibYAML/include: https://github.com/ingydotnet/yaml-libyaml-pm/tree/seperate-libyaml-source/YAML-LibYAML-0.77
The problem is I don't know how to change LibYAML/Makefile.PL.
Currently I'm getting this error because apparently it can't find the yaml.h:

Can't load '.../yaml-libyaml-pm/YAML-LibYAML-0.77/blib/arch/auto/YAML/
+XS/LibYAML/LibYAML.so' for
 module YAML::XS::LibYAML: .../yaml-libyaml-pm/YAML-LibYAML-0.77/blib/
+arch/auto/YAML/XS/LibYAML/LibYAML.so: undefined symbol:
yaml_sequence_start_event_initialize at .../perl-5.24.1/lib/5.24.1/x86
+_64-linux/DynaLoader.pm
 line 193, <CONFIG> line 1.
 at .../yaml-libyaml-pm/YAML-LibYAML-0.77/blib/lib/YAML/XS.pm line 20.

[download]
Any ideas/pointers on how to set this up?

To reproduce:
Clone the git repo:
git clone https://github.com/ingydotnet/yaml-libyaml-pm -b seperate-libyaml-source
and go into the directory YAML-LibYAML-0.77: 
perl Makefile.PL
make
make test

[download]

edit:
Tux was working on it and came up with this: 

use ExtUtils::MakeMaker;
use strict;
use Config;

 my $s = join " " => sort glob ("*.c"), glob ("src/*.c"), glob ("*.xs"
+);
(my $o = $s) =~ s{\.(?:c|xs)\b}{$Config::Config{_o}}g;
(my $l = $o) =~ s{\bsrc/}{}g;

my $DEFINE = $^O eq 'MSWin32'
    ? '-DHAVE_CONFIG_H -DYAML_DECLARE_EXPORT'
    : '-DHAVE_CONFIG_H';

WriteMakefile(
    NAME => 'YAML::XS::LibYAML',
    ABSTRACT_FROM => 'lib/YAML/XS/LibYAML.pm',
    AUTHOR => 'Ingy döt Net <ingy@cpan.org>',
    PREREQ_PM => {},
    CCFLAGS => "-I. -Isrc -Iinclude $DEFINE",
    OBJECT => $o,
    LDFROM => $l,
);

[download]

It's working for me, thanks Tux!
The only weird thing is that it is compiling again whenever one does make test. Does anyone have an idea?

In reply to Separating source files in YAML::XS by tinita

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