fix build breakage found by randconfig

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

networking/httpd.c

@@ -1676,7 +1676,7 @@ static int checkPermIP(void)
 
 #if ENABLE_FEATURE_HTTPD_BASIC_AUTH
 
-# if ENABLE_FEATURE_HTTPD_AUTH_MD5 && ENABLE_PAM
+# if ENABLE_PAM
 struct pam_userinfo {
 	const char *name;
 	const char *pw;
@@ -1842,7 +1842,9 @@ static int check_user_passwd(const char *path, char *user_and_passwd)
 
 			if (passwd[0] == '$' && isdigit(passwd[1])) {
 				char *encrypted;
+# if !ENABLE_PAM
  check_encrypted:
+# endif
 				/* encrypt pwd from peer and check match with local one */
 				encrypted = pw_encrypt(
 					/* pwd (from peer): */  colon_after_user + 1,

networking/udhcp/d6_common.h

@@ -115,7 +115,11 @@ int FAST_FUNC d6_send_kernel_packet(
 		struct in6_addr *dst_ipv6, int dest_port
 );
 
+#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 2
 void FAST_FUNC d6_dump_packet(struct d6_packet *packet);
+#else
+# define d6_dump_packet(packet) ((void)0)
+#endif
 
 
 POP_SAVED_FUNCTION_VISIBILITY

networking/udhcp/d6_dhcpc.c

@@ -19,7 +19,7 @@
 
 //applet:IF_UDHCPC6(APPLET(udhcpc6, BB_DIR_USR_BIN, BB_SUID_DROP))
 
-//kbuild:lib-$(CONFIG_UDHCPC6) += d6_dhcpc.o d6_packet.o d6_socket.o common.o
+//kbuild:lib-$(CONFIG_UDHCPC6) += d6_dhcpc.o d6_packet.o d6_socket.o common.o socket.o signalpipe.o
 
 
 #include <syslog.h>