-base64.o: $(HDRS) base64.c
-bignum.o: $(HDRS) bignum.c
-part-x509parse.o: $(HDRS) part-x509parse.c
-pdkim.o: $(HDRS) pdkim.h pdkim-rsa.h pdkim.c
-pdkim-rsa.o: $(HDRS) polarssl/private-x509parse_c.h polarssl/base64.h \
- pdkim-rsa.h pdkim-rsa.c
-rsa.o: $(HDRS) rsa.c
-sha1.o: $(HDRS) sha1.c
-sha2.o: $(HDRS) sha2.c