dompdf load_font.php generates incorrect cache

DomPDF is a wonderful library, which helps to generate PDF files on your server.
It also gives a possibility to add custom fonts to setup.
For this purpose there is a special utility load_font.php
just run the following command line on your Linux box and you will get proper fonts for dompdf:

./load_font.php 'Trebuchet MS' /usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS.ttf

The problem I met is the file lib/fonts/dompdf_font_family_cache. This file is used to store fonts’ information for further using in PDF generation.
Actually it is just simple php Array:

array (
  'sans-serif' =>
  array (
    'normal' => '/home/misha/src/dompdf/lib/fonts/Helvetica',
    'bold' => '/home/misha/src/dompdf/lib/fonts/Helvetica-Bold',
    'italic' => '/home/misha/src/dompdf/lib/fonts/Helvetica-Oblique',
    'bold_italic' => '/home/misha/src/dompdf/lib/fonts/Helvetica-BoldOblique',
  ),
  'times' =>
  array (
    'normal' => '/home/misha/src/dompdf/lib/fonts/Times-Roman',
    'bold' => '/home/misha/src/dompdf/lib/fonts/Times-Bold',
    'italic' => '/home/misha/src/dompdf/lib/fonts/Times-Italic',
    'bold_italic' => '/home/misha/src/dompdf/lib/fonts/Times-BoldItalic',
  ),
)

The source of the problem is in full path. If you plan to copy this directory structure to your server, then replace the full path with the definition DOMPDF_FONT_DIR

array (
  'sans-serif' => 
  array (
    'normal' => DOMPDF_FONT_DIR . 'Helvetica',
    'bold' => DOMPDF_FONT_DIR . 'Helvetica-Bold',
    'italic' => DOMPDF_FONT_DIR . 'Helvetica-Oblique',
    'bold_italic' => DOMPDF_FONT_DIR . 'Helvetica-BoldOblique',
  ),
  'times' => 
  array (
    'normal' => DOMPDF_FONT_DIR . 'Times-Roman',
    'bold' => DOMPDF_FONT_DIR . 'Times-Bold',
    'italic' => DOMPDF_FONT_DIR . 'Times-Italic',
    'bold_italic' => DOMPDF_FONT_DIR . 'Times-BoldItalic',
  ),
)