diff --git a/CHANGES b/CHANGES
index 213c651..4a635b1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -7,6 +7,8 @@ corrections:
 	RECVFROM addresses with FORK option hung after processing the first
 	packet.
 
+	corrected a few mistakes that caused compiler warnings on 64bit hosts
+
 ####################### V 1.6.0.1:
 
 new features:
diff --git a/VERSION b/VERSION
index 5f22ae7..475d203 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-"1.6.0.1+ip4bind+recvfromfork"
+"1.6.0.1+ip4bind+recvfromfork+x64"
diff --git a/error.c b/error.c
index fbddb1f..a3adf6c 100644
--- a/error.c
+++ b/error.c
@@ -1,5 +1,5 @@
 /* source: error.c */
-/* Copyright Gerhard Rieger 2001-2007 */
+/* Copyright Gerhard Rieger 2001-2008 */
 /* Published under the GNU General Public License V.2, see file COPYING */
 
 /* the logging subsystem */
@@ -100,7 +100,7 @@ void diag_set(char what, const char *arg) {
 		   sizeof(facilitynames)/sizeof(struct wordent))) == NULL) {
 	    Error1("unknown syslog facility \"%s\"", arg);
 	 } else {
-	    diagopts.logfacility = (int)keywd->desc;
+	    diagopts.logfacility = (int)(size_t)keywd->desc;
 	 }
       }
       openlog(diagopts.progname, LOG_PID, diagopts.logfacility);
diff --git a/procan-cdefs.c b/procan-cdefs.c
index 14333de..b305578 100644
--- a/procan-cdefs.c
+++ b/procan-cdefs.c
@@ -20,7 +20,7 @@ int procan_cdefs(FILE *outfile) {
    fprintf(outfile, "#define FD_SETSIZE %u\n", FD_SETSIZE);
 #endif
 #ifdef NFDBITS
-   fprintf(outfile, "#define NFDBITS %u\n", NFDBITS);
+   fprintf(outfile, "#define NFDBITS %u\n", (unsigned int)NFDBITS);
 #endif
 #ifdef O_RDONLY
    fprintf(outfile, "#define O_RDONLY %u\n", O_RDONLY);
diff --git a/xioopts.c b/xioopts.c
index 1ccdca3..d3bc636 100644
--- a/xioopts.c
+++ b/xioopts.c
@@ -2030,7 +2030,7 @@ int parseopts_table(const char **a, unsigned int groups, struct opt **opts,
 #if WITH_IP4
       case TYPE_IP4NAME:
 	 {
-	    struct sockaddr_in sa;  size_t salen = sizeof(sa);
+	    struct sockaddr_in sa;  socklen_t salen = sizeof(sa);
 	    const char *ends[] = { NULL };
 	    const char *nests[] = { "[","]", NULL };
 	    char buff[512], *buffp=buff; size_t bufspc = sizeof(buff)-1;
@@ -3515,9 +3515,9 @@ mc:ifname|ifind
 mc:addr
 */
 	       union sockaddr_union sockaddr1;
-	       size_t socklen1 = sizeof(sockaddr1.ip4);
+	       socklen_t socklen1 = sizeof(sockaddr1.ip4);
 	       union sockaddr_union sockaddr2;
-	       size_t socklen2 = sizeof(sockaddr2.ip4);
+	       socklen_t socklen2 = sizeof(sockaddr2.ip4);
 
 	       /* first parameter is alway multicast address */
 	       /*! result */
@@ -3613,7 +3613,7 @@ mc:addr
 	    {
 	       struct ipv6_mreq ip6_mreq = {{{{0}}}};
 	       union sockaddr_union sockaddr1;
-	       size_t socklen1 = sizeof(sockaddr1.ip6);
+	       socklen_t socklen1 = sizeof(sockaddr1.ip6);
 
 	       /* always two parameters */
 	       /* first parameter is multicast address */