Use libmd if and only if OpenSSL is not available.

PR:		bin/171402
MFC after:	3 days

lib/libfetch/Makefile

@@ -16,8 +16,8 @@ CFLAGS+=	-DINET6
 
 .if ${MK_OPENSSL} != "no"
 CFLAGS+=	-DWITH_SSL
-DPADD=		${LIBSSL} ${LIBCRYPTO} ${LIBMD}
-LDADD=		-lssl -lcrypto -lmd
+DPADD=		${LIBSSL} ${LIBCRYPTO}
+LDADD=		-lssl -lcrypto
 .else
 DPADD=		${LIBMD}
 LDADD=		-lmd

lib/libfetch/http.c

@@ -76,7 +76,15 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
+
+#ifdef WITH_SSL
+#include <openssl/md5.h>
+#define MD5Init(c) MD5_Init(c)
+#define MD5Update(c, data, len) MD5_Update(c, data, len)
+#define MD5Final(md, c) MD5_Final(md, c)
+#else
 #include <md5.h>
+#endif
 
 #include <netinet/in.h>
 #include <netinet/tcp.h>

usr.bin/fetch/Makefile

@@ -4,11 +4,12 @@
 
 PROG=		fetch
 CSTD?=		c99
+.if ${MK_OPENSSL} != "no"
+DPADD=		${LIBFETCH} ${LIBSSL} ${LIBCRYPTO}
+LDADD=		-lfetch -lssl -lcrypto
+.else
 DPADD=		${LIBFETCH} ${LIBMD}
 LDADD=		-lfetch -lmd
-.if ${MK_OPENSSL} != "no"
-DPADD+=		${LIBSSL} ${LIBCRYPTO}
-LDADD+=		-lssl -lcrypto
 .endif
 
 .include <bsd.prog.mk>