+SIGNSRC= \
+crypto/libeddsa/sign.c \
+crypto/libeddsa/lib/burn.c \
+crypto/libeddsa/lib/burnstack.c \
+crypto/libeddsa/lib/ed.c \
+crypto/libeddsa/lib/ed25519-sha512.c \
+crypto/libeddsa/lib/fld.c \
+crypto/libeddsa/lib/sc.c \
+crypto/libeddsa/lib/sha512.c \
+crypto/libeddsa/lib/x25519.c
+
+SIGNOBJ=$(SIGNSRC:.c=.o)
+
+$(SIGNOBJ): CFLAGS=-Wall -Wextra -W -Werror -Wno-pointer-sign \
+ -Icrypto/libeddsa/lib -Wno-unused-command-line-argument
+
+zpm-sign: $(SIGNOBJ)
+ $(CC) -Wall -Wextra -W -Werror -Wno-unused-command-line-argument -static -o $@ $+
+