use ExtUtils::MakeMaker;
use Config;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.

if (($Config{'osname'} eq 'MSWin32' && $ENV{'OSTYPE'} eq '')) {
	WriteMakefile(
		'NAME'         => 'RRDs',
		'VERSION_FROM' => 'RRDs.pm',
		'DEFINE'       => "-DPERLPATCHLEVEL=$Config{PATCHLEVEL} -D_CRT_SECURE_NO_WARNINGS -DWIN32",
		'INC'          => '-I../../src/ "-IC:/Perl/lib/CORE" -I"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include" -I"C:\Program Files\Microsoft SDKs\Windows\v7.1\Include"',
		'LDDLFLAGS'    => '-dll -nologo -opt:ref,icf -ltcg -libpath:"C:\Perl\lib\CORE" -machine:X86',
		'LDFLAGS'      => '-nologo -opt:ref,icf -ltcg -libpath:"C:\Perl\lib\CORE" -machine:X86',
		'OPTIMIZE'     => '-O2 -MD',
		'LIBS'         => '"..\..\win32\Release\rrdlib.lib" "..\..\win32\Release" "C:\Perl\lib\CORE\perl514.lib" -L../../contrib/lib -L"C:\Program Files\Microsoft SDKs\Windows\v7.1\lib" -L"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib" -L"C:\Perl\lib\CORE"',
		'realclean'    => {FILES => 't/demo?.rrd t/demo?.png' },
		($] ge '5.005') ? (
			'AUTHOR'   => 'Tobias Oetiker (tobi@oetiker.ch)',
			'ABSTRACT' => 'Round Robin Database Tool',
		) : ()
	);
}else{
	# if the last argument when calling Makefile.PL is RPATH=/... and ... is the
	# path to librrd.so then the Makefile will be written such that RRDs.so knows
	# where to find librrd.so later on ... 
	my $R="";
	if ($ARGV[-1] =~ /RPATH=(\S+)/){
		pop @ARGV;
		my $rp = $1;
		for ($^O){
			/linux/   && do{ $R = "-Wl,--rpath -Wl,$rp"};
			/hpux/    && do{ $R = "+b$rp"};
			/solaris/ && do{ $R = "-R$rp"};
			/bsd/     && do{ $R = "-R$rp"};
			/aix/     && do{ $R = "-blibpath:$rp"};
		}
	}

	# darwin works without this because librrd contains its
	# install_name which will includes the final location of the
	# library after it is installed. This install_name gets transfered
	# to the perl shared object.
	my $librrd;
	if ($^O eq 'darwin'){
        $librrd = '-lrrd';
	} else {
		$librrd = "-L../../src/.libs/ $R -lrrd";
	}

	WriteMakefile(
		'NAME'         => 'RRDs',
		'VERSION_FROM' => 'RRDs.pm', # finds $VERSION
		'DEFINE'	   => "-DPERLPATCHLEVEL=$Config{PATCHLEVEL}",
		'INC'          => '-I../../src',
		# Perl will figure out which one is valid
		#'dynamic_lib'  => {'OTHERLDFLAGS' => "$librrd -lm"},
		'depend'       => {'RRDs.c' => "../../src/librrd.la"},
		'LDFROM'       => '$(OBJECT) '.$librrd, 
		'realclean'    => {FILES => 't/demo?.rrd t/demo?.png' },
		($^O eq 'darwin') ? ( 'LDDLFLAGS'    => "-L../../src/.libs/ $Config{lddlflags}" ) : ()
	);
}