#include <fontconfig/fontconfig.h>
FcBool FcPatternAddInteger(FcPattern *p, const char *object, int i);
FcBool FcPatternAddDouble(FcPattern *p, const char *object, double d);
FcBool FcPatternAddString(FcPattern *p, const char *object, const FcChar8 *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, FcBool b);
FcBool FcPatternAddFTFace(FcPattern *p, const char *object, const FT_Facef);
FcBool FcPatternAddLangSet(FcPattern *p, const char *object, const FcLangSet *l);
FcBool FcPatternAddRange(FcPattern *p, const char *object, const FcRange *r);