Submitted to vendor:

	http://issues.apache.org/bugzilla/show_bug.cgi?id=41523

	-mi

--- ../generic/request_ap.c	2009-05-22 06:13:35.000000000 -0400
+++ ../generic/request_ap.c	2010-02-24 22:24:36.000000000 -0500
@@ -14,4 +14,5 @@
  */
 
+#include <ctype.h>
 #include "tcl.h"
 #include "hashutl.h"
@@ -100,5 +101,4 @@
     if (!remote_user) {
 
-      int ret = 0;
       const char *pw = NULL;
       const char *user = NULL;
--- ../generic/logutl.c	2009-09-14 11:11:40.000000000 -0400
+++ ../generic/logutl.c	2013-05-12 15:04:11.000000000 -0400
@@ -87,5 +87,5 @@
 
     LogLevel *logLevel = NULL;
-    int res;
+    int res = TCL_ERROR;
 
     if ((logData == NULL) || (levelStr == NULL) || (msg == NULL))
@@ -465,7 +465,7 @@
 		case 'p':
 #ifndef WIN32
-		    sprintf(tmpStr, "%d", (int) getpid());
+		    sprintf(tmpStr, "%lu", (unsigned long)getpid());
 #else
-		    sprintf(tmpStr, "%d", (int) _getpid());
+		    sprintf(tmpStr, "%lu", (unsigned long)_getpid());
 #endif
 		    Tcl_AppendToObj(fmsg, tmpStr, -1);
@@ -473,5 +473,5 @@
 		case 't':
 #ifdef TCL_THREADS
-		    sprintf(tmpStr, "%d", (int) Tcl_GetCurrentThread());
+		    sprintf(tmpStr, "%lu", (unsigned long)(uintptr_t)Tcl_GetCurrentThread());
 		    Tcl_AppendToObj(fmsg, tmpStr, -1);
 #else
--- ../generic/nca_d.c	2009-09-14 11:11:40.000000000 -0400
+++ ../generic/nca_d.c	2013-05-12 14:55:21.000000000 -0400
@@ -176,5 +176,4 @@
 
     Tcl_Obj *key = NULL;
-    unsigned char *keyBytes = NULL;
     int keyLen = -1;
     char *str = NULL;
@@ -192,5 +191,5 @@
     WebAssertData(interp, clientData, "web::decryptd", TCL_ERROR);
     key = (Tcl_Obj *) clientData;
-    keyBytes = Tcl_GetByteArrayFromObj(key, &keyLen);
+    Tcl_GetByteArrayFromObj(key, &keyLen);
 
     if (keyLen < 1) {
--- ../generic/formdata.c	2007-09-04 12:59:43.000000000 -0400
+++ ../generic/formdata.c	2013-05-12 14:56:59.000000000 -0400
@@ -273,5 +273,4 @@
     int isLast = TCL_ERROR;
     long upLoadFileSize = 0;
-    long bytesWritten = 0;
     long bytesSkipped = 0;
     Tcl_Obj *tmpFileName = NULL;
@@ -353,5 +352,4 @@
 		}
 
-		bytesWritten = 0;
 		bytesSkipped = 0;
 
@@ -366,8 +364,7 @@
 		}
 
-		bytesWritten =
-		    readAndDumpBody(interp, channel, boundary, &isLast,
-				    tmpFileName, upLoadFileSize,
-				    requestData->filePermissions, &bytesSkipped);
+		readAndDumpBody(interp, channel, boundary, &isLast,
+				tmpFileName, upLoadFileSize,
+				requestData->filePermissions, &bytesSkipped);
 
 		if (fileNameLen > 0) {
--- ../generic/log.c	2009-09-14 11:11:40.000000000 -0400
+++ ../generic/log.c	2013-05-12 14:58:45.000000000 -0400
@@ -35,5 +35,4 @@
     LogPlugIn *logtocmd = NULL;
     LogPlugIn *logtosyslog = NULL;
-    int ires = 0;
 
     /* --------------------------------------------------------------------------
@@ -86,5 +85,5 @@
     logtochannel->handler = logToChannel;
 
-    ires = registerLogPlugIn(interp, "channel", logtochannel);
+    registerLogPlugIn(interp, "channel", logtochannel);
 
     /* --------------------------------------------------------------------------
@@ -98,5 +97,5 @@
     logtofile->handler = logToFile;
 
-    ires = registerLogPlugIn(interp, "file", logtofile);
+    registerLogPlugIn(interp, "file", logtofile);
 
     /* --------------------------------------------------------------------------
@@ -110,5 +109,5 @@
     logtocmd->handler = logToCmd;
 
-    ires = registerLogPlugIn(interp, "command", logtocmd);
+    registerLogPlugIn(interp, "command", logtocmd);
 
     /* --------------------------------------------------------------------------
@@ -123,5 +122,5 @@
     logtosyslog->handler = logToSyslog;
 
-    ires = registerLogPlugIn(interp, "syslog", logtosyslog);
+    registerLogPlugIn(interp, "syslog", logtosyslog);
 #endif
     /* --------------------------------------------------------------------------
Versions 15+ of clang reject K&R-style function-definitions...
--- ../generic/tclAppInit.c	2009-07-14 15:11:04.000000000 -0400
+++ ../generic/tclAppInit.c	2023-02-12 18:07:45.705753000 -0500
@@ -54,7 +54,5 @@
  */
 
-int main(argc, argv)
-     int argc;			/* Number of command-line arguments. */
-     char **argv;		/* Values of command-line arguments. */
+int main(int argc, char **argv)
 {
     /*
--- ../generic/htmlify.c	2009-09-14 11:11:40.000000000 -0400
+++ ../generic/htmlify.c	2023-02-12 18:14:07.883307000 -0500
@@ -128,5 +128,5 @@
 /* <!> */
 /* <-- */
-#define HANDLE_TAG(unic,length,out,pos,err) { \
+#define HANDLE_TAG(unic,length,out,pos) { \
   int open = 1;  /* number of open '<' */ \
   int begin = pos; \
@@ -162,5 +162,5 @@
 }
 
-#define HANDLE_ENTITY(convData, unic, length, out, pos, err) { \
+#define HANDLE_ENTITY(convData, unic, length, out, pos) { \
   int begin = pos; \
   int end = ++pos; \
@@ -202,12 +202,12 @@
     if (unic[first] == '#') { \
       /* a number */ \
-      HANDLE_UNICODE_ENTITY(unic, length, out, begin, first, end, err); \
+      HANDLE_UNICODE_ENTITY(unic, length, out, begin, first, end); \
     } else { \
-      HANDLE_KEY_ENTITY(convData, unic, length, out, begin, first, end, err); \
+      HANDLE_KEY_ENTITY(convData, unic, length, out, begin, first, end); \
     } \
   } \
 }
 
-#define HANDLE_UNICODE_ENTITY(unic, length, out, begin, first, end, err) { \
+#define HANDLE_UNICODE_ENTITY(unic, length, out, begin, first, end) { \
   int tInt = 0; \
   Tcl_UniChar tmp = 0; \
@@ -220,5 +220,4 @@
     /* no valid number, we write the string instead */ \
     Tcl_AppendUnicodeToObj(out,&(unic[begin]),end-begin); \
-    err++; \
   } else { \
     /* check if within range of Tcl_UniChar */ \
@@ -228,5 +227,4 @@
       if (end < length && unic[end] == ';') /* don't forget this one! */ \
 	Tcl_AppendUnicodeToObj(out,&(unic[end]),1); \
-      err++; \
     } else { \
       tmp = (Tcl_UniChar)tInt; \
@@ -237,5 +235,5 @@
 }
 
-#define HANDLE_KEY_ENTITY(convData, unic, length, out, begin, first, end, err) { \
+#define HANDLE_KEY_ENTITY(convData, unic, length, out, begin, first, end) { \
   /* use lookup table */ \
   Tcl_Obj* iObj = NULL; \
@@ -261,5 +259,4 @@
     if (end < length && unic[end] == ';') /* don't forget this one! */ \
       Tcl_AppendUnicodeToObj(out,&(unic[end]),1); \
-    err++; \
   }	 \
 }
@@ -276,5 +273,4 @@
     int plainfirst = 0;
     int plainend = 0;
-    int err = 0;		/* temporary use, may be removed */
 
     if (in == NULL || out == NULL) {
@@ -308,5 +304,5 @@
 	     * we're in a tag, thus we skip everything 
 	     * --------------------------------------------------------------------*/
-	    HANDLE_TAG(unic, length, out, pos, err);
+	    HANDLE_TAG(unic, length, out, pos);
 	    plainfirst = pos + 1;
 
@@ -331,5 +327,5 @@
 	     * it's an entity
 	     */
-	    HANDLE_ENTITY(convData, unic, length, out, pos, err);
+	    HANDLE_ENTITY(convData, unic, length, out, pos);
 	    plainfirst = pos + 1;
 	}