New Configure option no-<cipher> (rsa, idea, rc5, ...).

crypto/rc4/Makefile.ssl

diff --git a/crypto/rc4/Makefile.ssl b/crypto/rc4/Makefile.ssl
index 60e419f..389c4ea 100644
--- a/crypto/rc4/Makefile.ssl
+++ b/crypto/rc4/Makefile.ssl
@@ -93,7 +93,7 @@
 	lint -DLINT $(INCLUDES) $(SRC)>fluff
 
 depend:
-	$(MAKEDEPEND) $(INCLUDES) $(PROGS) $(LIBSRC)
+	$(MAKEDEPEND) $(INCLUDES) $(DEPFLAG) $(PROGS) $(LIBSRC)
 
 dclean:
 	$(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new

crypto/rc4/rc4.h

diff --git a/crypto/rc4/rc4.h b/crypto/rc4/rc4.h
index 8d2b165..7418c2a 100644
--- a/crypto/rc4/rc4.h
+++ b/crypto/rc4/rc4.h
@@ -63,6 +63,10 @@
 extern "C" {
 #endif
 
+#ifdef NO_RC4
+#error RC4 is disabled.
+#endif
+
 #include <openssl/opensslconf.h> /* RC4_INT */
 
 typedef struct rc4_key_st

crypto/rc4/rc4test.c

diff --git a/crypto/rc4/rc4test.c b/crypto/rc4/rc4test.c
index 1410b72..5abf8cf 100644
--- a/crypto/rc4/rc4test.c
+++ b/crypto/rc4/rc4test.c
@@ -59,6 +59,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+
+#ifdef NO_RC4
+int main(int argc, char *argv[])
+{
+    printf("No RC4 support\n");
+    return(0);
+}
+#else
 #include <openssl/rc4.h>
 
 unsigned char keys[7][30]={
@@ -190,4 +198,4 @@
 	exit(err);
 	return(0);
 	}
-
+#endif