Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 bug

NAME
       FcStrStr - locate UTF-8 substring


SYNOPSIS
       #include <fontconfig/fontconfig.h>

       FcChar8 * FcStrStr (const FcChar8 *s1, const FcChar8 *s2);


DESCRIPTION
       Returns  the  location  of  s2  in  s1.   Returns NULL if s2 is not present in s1. This test will operate
       properly with UTF8 encoded strings.