Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 
NAME
FcLangSetEqual - test for matching langsets
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcLangSetEqual (const FcLangSet *ls_a, const FcLangSet *ls_b);
DESCRIPTION
Returns FcTrue if and only if ls_a supports precisely the same language and territory
combinations as ls_b.