Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 

NAME
FcLangSetCopy - copy a langset object
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcLangSet * FcLangSetCopy (const FcLangSet *ls);
DESCRIPTION
FcLangSetCopy creates a new FcLangSet object and populates it with the contents of ls.
Fontconfig 2.12.6 05 April 2018 FcLangSetCopy(3)