FcConfigSubstitute - Execute substitutions
#include <fontconfig.h>
FcBool FcConfigSubstitute(FcConfig *config);
(FcPattern *p);
(FcMatchKind kind);
.fi
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.
Fontconfig version 2.8.0
18 November 2009 FcConfigSubstitute(3)