# Makefile.PL for a package defined by PP code.

# Check for a PDL installation
BEGIN
 {

    eval{ require PDL::Core::Dev };
    if( $@ ){
            print "\n#### Error requiring 'PDL::Core::Dev': Perhaps you don't have PDL installed ###\n";
            print "####  This module requires a PDL installation                           ###\n";
            
	    require ExtUtils::MakeMaker;
	    import  ExtUtils::MakeMaker;

            # Write out a simple makefile with PREREQ_PM, so CPAN will at least detect our
            #   prerequesites.
            WriteMakefile( 
                'VERSION_FROM'  => 'hdf5.pd',
                'NAME'     => 'PDL::IO::HDF5',
                'DISTNAME' => "PDL-IO=HDF5",
                'PREREQ_PM'  => { PDL => 2.1 }
                );
            exit();
    }
    
}  
  




use PDL::Core::Dev;            # Pick up development utilities
use ExtUtils::MakeMaker;
use Config;

# 
## Search for hdf5 library and include file
#
$ENV{'HOME'} = '' unless defined( $ENV{'HOME'} ) ;

foreach my $libdir (
		    '/usr/local/hdf5/lib',
		    '/usr/local/lib',
		    '/opt/local/lib',
		    '/usr/lib',
		    '/opt/lib',
		    "$ENV{HOME}/hdf5/lib",  # for local hdf5 installs
		                  # Add new library paths here!!
		    ) {

  if (-e "$libdir/libhdf5.so") {
    $hdf5_lib_path = $libdir;
    print "Found libhdf5.so at $libdir/libhdf5.so\n";
    last;
  }

  if (-e "$libdir/libhdf5.a") {
    $hdf5_lib_path = $libdir;
    print "Found libhdf5.a at $libdir/libhdf5.a\n";
    last;
  }

}

# We don't do a die here, because we would get bogus emails from CPAN testers
unless(defined ($hdf5_lib_path) ){
	print "####### Cannot find hdf5 library, libhdf5.so or libhdf5.a.  
#######   Please add the correct library path to Makefile.PL or install HDF\n";
	exit();
} 

foreach my $incdir (
		    '/usr/local/hdf5/include',
		    '/usr/local/include',
		    '/opt/local/include',
		    '/usr/include',
		    '/opt/include',
		    "$ENV{HOME}/hdf5/include",  # for local hdf5 installs

		                  # Add new header paths here!!
		    ) {

  if (-e "$incdir/hdf5.h") {
    $hdf5_include_path = $incdir;
    print "Found hdf5.h at $incdir/hdf5.h\n";
    last;
  }
}

# We don't do a die here, because we would get bogus emails from CPAN testers
unless ( defined ($hdf5_include_path) ){
	print "####### Cannot find hdf5 header file, hdf5.h.
#######   Please add the correct library path to Makefile.PL or install HDF5\n";
	exit();
} 

# Flags to include jpeg and/or zlib during compilation
$jpegLib = 0;
$zLib = 0;
if( -e "$hdf5_include_path/H5config.h"){
	open( H5CONFIG, "$hdf5_include_path/H5config.h") or 
           die("Can't Open Include File '$hdf5_include_path/H5config.h'\n");
	while(defined( $_ = <H5CONFIG>)){
		$jpegLib = 1 if( /^\s*\#define\s+HAVE_LIBJPEG\s+1/ );
		$zLib = 1 if( /^\s*\#define\s+HAVE_LIBZ\s+1/ );
	}
}


# The following code was originally in the PDL::netCDF Makefile.PL
#  (Not sure if it is really needed here)
# Check if compiled under gcc/Linux.  In which case, define bool for the compiler
$define_bool = '';
if ($Config{'osname'} =~ /linux/) {
  $define_bool = '-Dbool=int';
  print "Defining bool=int (linux seems to need this)\n";
}

#If in win32, add the required defined for the HDF5 libs to work:
$define_win32HDF = '';
if ($Config{'osname'} =~ /win32/i) {
  $define_win32HDF = '-D _HDF5USEDLL_ -D HASATTRIBUTE ';
  print "Defining _HDF5USEDLL_ for win32\n";
}

$LIBS = "-L$hdf5_lib_path -lhdf5 ";
$LIBS .= " -lz" if($zLib);
$LIBS .= " -ljpeg" if($jpegLib);
$LIBS .= " -lm";

$package = ["hdf5.pd",HDF5,PDL::IO::HDF5];
WriteMakefile(
	      'NAME'  	     => 'PDL::IO::HDF5',
	      'CCFLAGS'      => "$define_bool $define_win32HDF -DH5_USE_16_API -g",  
              'PREREQ_PM'  => { PDL => 2.1 },
	      'VERSION_FROM' => 'hdf5.pd',
	      'TYPEMAPS'     => [&PDL_TYPEMAP()], 
	      'OBJECT'       => 'HDF5.o ',
	      'PM'           => { 'HDF5.pm' => '$(INST_LIBDIR)/HDF5.pm',
	      			  'HDF5/Group.pm' => '$(INST_LIBDIR)/HDF5/Group.pm',
	      			  'HDF5/Dataset.pm' => '$(INST_LIBDIR)/HDF5/Dataset.pm',
	      			  'HDF5/tkview.pm' => '$(INST_LIBDIR)/HDF5/tkview.pm',
				},
	      'INC'          => &PDL_INCLUDE()." -I$hdf5_include_path", 
	      'LIBS'         => [$LIBS],  
	      'clean'        => {'FILES'  => 
				   'HDF5.pm HDF5.xs HDF5.o HDF5.c'},
	      'dist'         => { COMPRESS => 'gzip', SUFFIX => 'gz' },	
	      );

sub MY::postamble { pdlpp_postamble($package); }