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

NAME

       FcConfigSubstitute - Execute substitutions

SYNOPSIS

       #include <fontconfig/fontconfig.h>

       FcBool FcConfigSubstitute (FcConfig *config, FcPattern *p, FcMatchKind kind);

DESCRIPTION

       Calls  FcConfigSubstituteWithPat  setting  p_pat  to  NULL. Returns FcFalse if the substitution cannot be
       performed (due to allocation failure).  Otherwise  returns  FcTrue.   If  config  is  NULL,  the  current
       configuration is used.