my $libs = `pkg-config --libs cairo`;
my $inc = `pkg-config --cflags cairo`;

use ExtUtils::MakeMaker;
WriteMakefile(
    'NAME'       => 'mygraph',    # Name of module
    'LIBS'       => $libs,
    'INC'        => $inc,
    'OBJECT' => 'graph_wrap.o'  # All object files
);