Add rules for building src/crypto as a library

For now, this is hardcoded to support only the internal crypto
implementation.

src/crypto/.gitignore

@@ -0,0 +1 @@
+libcrypto.a

src/crypto/Makefile

@@ -1,9 +1,52 @@
-all:
-	@echo Nothing to be made.
+all: libcrypto.a
 
 clean:
 	for d in $(SUBDIRS); do make -C $$d clean; done
-	rm -f *~ *.o *.d
+	rm -f *~ *.o *.d libcrypto.a
 
 install:
 	@echo Nothing to be made.
+
+
+include ../lib.rules
+
+CFLAGS += -DCONFIG_TLS_INTERNAL_CLIENT
+CFLAGS += -DCONFIG_TLS_INTERNAL_SERVER
+#CFLAGS += -DALL_DH_GROUPS
+
+LIB_OBJS= \
+	aes-cbc.o \
+	aes-ctr.o \
+	aes-eax.o \
+	aes-encblock.o \
+	aes-internal.o \
+	aes-internal-dec.o \
+	aes-internal-enc.o \
+	aes-omac1.o \
+	aes-wrap.o \
+	des-internal.o \
+	dh_group5.o \
+	dh_groups.o \
+	md4-internal.o \
+	md5.o \
+	md5-internal.o \
+	md5-non-fips.o \
+	milenage.o \
+	ms_funcs.o \
+	rc4.o \
+	sha1.o \
+	sha1-internal.o \
+	sha1-pbkdf2.o \
+	sha1-tprf.o \
+	sha256.o \
+	sha256-internal.o
+
+LIB_OBJS += crypto_internal.o
+LIB_OBJS += tls_internal.o
+LIB_OBJS += fips_prf_internal.o
+
+
+libcrypto.a: $(LIB_OBJS)
+	$(AR) cr $@ $(LIB_OBJS)
+
+-include $(OBJS:%.o=%.d)