




The 
merge-font-description
 function returns a font description containing all the attributes of 
fdesc1
 and 
fdesc2
. If an attribute appears in both 
fdesc1 
and 
fdesc2
, the value in 
fdesc1
 is used. The 
:stock
 attribute is handled specially: it is omitted from 
fdesc
, unless it is the only attribute in 
fdesc1
 and 
fdesc2
.