Description of problem:
gnucash doesn't start.

Version-Release number of selected component (if applicable):
gnucash-1.8.0-3

How reproducible:
100%

Steps to Reproduce:
1. gnucash
    
Actual results:
Warning: gnucash_style_set_register...(): Cannot load font:
-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-*-*
 
Fatal Error: gnucash_style_set_register...(): Cannot load fallback font:
-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-*-*
 
Warning: gnucash_style_set_register...(): Cannot load font:
-adobe-helvetica-medium-o-normal--*-120-*-*-*-*-*-*
 
Fatal Error: gnucash_style_set_register...(): Cannot load fallback font:
-adobe-helvetica-medium-o-normal--*-120-*-*-*-*-*-*
 
Fatal Error: gnucash_style_set_register...(): Cannot load fallback font:
-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-*-*
 
Fatal Error: gnucash_style_set_register...(): Cannot load fallback font:
-adobe-helvetica-medium-o-normal--*-120-*-*-*-*-*-*

(program exits; no window is opened)