diff --git a/src/libCom/osi/os/LynxOS/osdSock.h b/src/libCom/osi/os/LynxOS/osdSock.h
index 16af8ca4b..8979e69c9 100644
--- a/src/libCom/osi/os/LynxOS/osdSock.h
+++ b/src/libCom/osi/os/LynxOS/osdSock.h
@@ -23,12 +23,6 @@ extern "C" {
 #include <net/if.h>
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
- 
-/*
- * as far as I can tell there is no header file for these
- */
-int gethostname(char *name, int namelen);
-int sethostname(char *name, int namelen);
 
 #ifdef __cplusplus
 }
diff --git a/src/libCom/osi/os/alpha/osdSock.h b/src/libCom/osi/os/alpha/osdSock.h
index 1e661e7df..f0882202d 100644
--- a/src/libCom/osi/os/alpha/osdSock.h
+++ b/src/libCom/osi/os/alpha/osdSock.h
@@ -26,12 +26,6 @@ struct ifafilt;
 #include <net/if.h>
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
- 
-/*
- * as far as I can tell there is no header file for these
- */
-int gethostname(char *name, int namelen);
-int sethostname(char *name, int namelen);
 
 #ifdef __cplusplus
 }
diff --git a/src/libCom/osi/os/cygwin32/osdSock.h b/src/libCom/osi/os/cygwin32/osdSock.h
index 825f0bf73..ef2f3e6a8 100644
--- a/src/libCom/osi/os/cygwin32/osdSock.h
+++ b/src/libCom/osi/os/cygwin32/osdSock.h
@@ -21,13 +21,6 @@ extern "C" {
 #include <net/if.h>
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
- 
-
-/*
- * as far as I can tell there is no header file for these
- */
-int gethostname(char *name, int namelen);
-int sethostname(char *name, int namelen);
 
 #ifdef __cplusplus
 }
diff --git a/src/libCom/osi/os/sgi/osdSock.h b/src/libCom/osi/os/sgi/osdSock.h
index 075f6c02b..72bc05137 100644
--- a/src/libCom/osi/os/sgi/osdSock.h
+++ b/src/libCom/osi/os/sgi/osdSock.h
@@ -26,12 +26,6 @@ extern "C" {
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
  
-/*
- * as far as I can tell there is no header file for these
- */
-/* int gethostname(char *name, int namelen); */
-/* int sethostname(char *name, int namelen); */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/libCom/osi/os/solaris/osdSock.h b/src/libCom/osi/os/solaris/osdSock.h
index 84205f835..179d1db10 100644
--- a/src/libCom/osi/os/solaris/osdSock.h
+++ b/src/libCom/osi/os/solaris/osdSock.h
@@ -25,12 +25,6 @@ extern "C" {
 #include <net/if.h>
 #include <netdb.h>
 #include <unistd.h> /* close() and others */
- 
-/*
- * as far as I can tell there is no header file for these
- */
-int gethostname(char *name, int namelen);
-int sethostname(char *name, int namelen);
 
 #ifdef __cplusplus
 }