#include <fontconfig.h>
FcBool FcPatternAddInteger(FcPattern *p, const char *object, inti);
FcBool FcPatternAddDouble(FcPattern *p, const char *object, doubled);
FcBool FcPatternAddString(FcPattern *p, const char *object, const char *s);
FcBool FcPatternAddMatrix(FcPattern *p, const char *object, const FcMatrix *m);
FcBool FcPatternAddCharSet(FcPattern *p, const char *object, const FcCharSet *c);
FcBool FcPatternAddBool(FcPattern *p, const char *object, FcBoolb);