Index: src/OFInflateStream.m
==================================================================
--- src/OFInflateStream.m
+++ src/OFInflateStream.m
@@ -406,11 +406,11 @@
 	case UNCOMPRESSED_BLOCK:
 #define CTX _context.uncompressed
 		if OF_UNLIKELY (length == 0)
 			return bytesWritten;
 
-		tmp = (length < CTX.length - CTX.position
+		tmp = (length < (size_t)CTX.length - CTX.position
 		    ? (uint16_t)length : CTX.length - CTX.position);
 
 		tmp = (uint16_t)[_stream readIntoBuffer: buffer + bytesWritten
 						 length: tmp];
 

Index: src/OFTCPSocket.m
==================================================================
--- src/OFTCPSocket.m
+++ src/OFTCPSocket.m
@@ -558,11 +558,12 @@
 	if ((flags = fcntl(client->_socket, F_GETFD, 0)) != -1)
 		fcntl(client->_socket, F_SETFD, flags | FD_CLOEXEC);
 # endif
 #endif
 
-	assert(client->_addressLength <= sizeof(struct sockaddr_storage));
+	assert(client->_addressLength <=
+	    (socklen_t)sizeof(struct sockaddr_storage));
 
 	if (client->_addressLength != sizeof(struct sockaddr_storage)) {
 		@try {
 			client->_address = [client
 			    resizeMemory: client->_address

Index: src/OFUDPSocket.m
==================================================================
--- src/OFUDPSocket.m
+++ src/OFUDPSocket.m
@@ -184,12 +184,12 @@
 		return false;
 
 	switch (address1->address.ss_family) {
 	case AF_INET:
 #if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
-		if (address1->length < sizeof(struct sockaddr_in) ||
-		    address2->length < sizeof(struct sockaddr_in))
+		if (address1->length < (socklen_t)sizeof(struct sockaddr_in) ||
+		    address2->length < (socklen_t)sizeof(struct sockaddr_in))
 			@throw [OFInvalidArgumentException exception];
 #else
 		if (address1->length < 8 || address2->length < 8)
 			@throw [OFInvalidArgumentException exception];
 #endif
@@ -241,11 +241,11 @@
 	hash += address->address.ss_family;
 
 	switch (address->address.ss_family) {
 	case AF_INET:
 #if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
-		if (address->length < sizeof(struct sockaddr_in))
+		if (address->length < (socklen_t)sizeof(struct sockaddr_in))
 			@throw [OFInvalidArgumentException exception];
 #else
 		if (address->length < 8)
 			@throw [OFInvalidArgumentException exception];
 #endif
@@ -304,11 +304,12 @@
 		      address: (of_udp_socket_address_t*)address
 {
 	of_resolver_result_t **results =
 	    of_resolve_host(host, port, SOCK_DGRAM);
 
-	assert(results[0]->addressLength <= sizeof(address->address));
+	assert(results[0]->addressLength <=
+	    (socklen_t)sizeof(address->address));
 
 	memcpy(&address->address, results[0]->address,
 	    results[0]->addressLength);
 	address->length = results[0]->addressLength;