[Bug 3388350] mingw64 compiler warnings

6 files changed, 12 insertions, 37 deletions

diff --git a/win/tclWinConsole.c b/win/tclWinConsole.c
index 1912433..a6207fe 100644
--- a/win/tclWinConsole.c
+++ b/win/tclWinConsole.c
@@ -1140,7 +1140,7 @@ ConsoleReaderThread(
 {
     ConsoleInfo *infoPtr = (ConsoleInfo *)arg;
     HANDLE *handle = infoPtr->handle;
-    DWORD count, waitResult;
+    DWORD waitResult;
     HANDLE wEvents[2];
 
     /* The first event takes precedence. */
@@ -1163,8 +1163,6 @@ ConsoleReaderThread(
 	    break;
 	}
 
-	count = 0;
-
 	/*
 	 * Look for data on the console, but first ignore any events that are
 	 * not KEY_EVENTs.
diff --git a/win/tclWinDde.c b/win/tclWinDde.c
index 6523357..71b03a9 100644
--- a/win/tclWinDde.c
+++ b/win/tclWinDde.c
@@ -139,14 +139,11 @@ int
 Dde_Init(
     Tcl_Interp *interp)
 {
-    ThreadSpecificData *tsdPtr;
-
     if (!Tcl_InitStubs(interp, "8.1", 0)) {
 	return TCL_ERROR;
     }
 
     Tcl_CreateObjCommand(interp, "dde", DdeObjCmd, NULL, NULL);
-    tsdPtr = TCL_TSD_INIT(&dataKey);
     Tcl_CreateExitHandler(DdeExitProc, NULL);
     return Tcl_PkgProvide(interp, TCL_DDE_PACKAGE_NAME, TCL_DDE_VERSION);
 }
diff --git a/win/tclWinFile.c b/win/tclWinFile.c
index df1c25b..f0f3bb0 100644
--- a/win/tclWinFile.c
+++ b/win/tclWinFile.c
@@ -252,9 +252,7 @@ WinLink(
 	 * It is a file.
 	 */
 
-	if (CreateHardLink == NULL) {
-	    Tcl_SetErrno(ENOTDIR);
-	} else if (linkAction & TCL_CREATE_HARD_LINK) {
+	if (linkAction & TCL_CREATE_HARD_LINK) {
 	    if (CreateHardLink(linkSourcePath, linkTargetPath, NULL)) {
 		/*
 		 * Success!
@@ -925,24 +923,16 @@ TclpMatchInDirectory(
 
 	    int len;
 	    DWORD attr;
+	    WIN32_FILE_ATTRIBUTE_DATA data;
 	    const char *str = Tcl_GetStringFromObj(norm,&len);
 
 	    native = Tcl_FSGetNativePath(pathPtr);
 
-	    if (GetFileAttributesEx == NULL) {
-		attr = GetFileAttributes(native);
-		if (attr == INVALID_FILE_ATTRIBUTES) {
-		    return TCL_OK;
-		}
-	    } else {
-		WIN32_FILE_ATTRIBUTE_DATA data;
-
-		if (GetFileAttributesEx(native,
-			GetFileExInfoStandard, &data) != TRUE) {
-		    return TCL_OK;
-		}
-		attr = data.dwFileAttributes;
+	    if (GetFileAttributesEx(native,
+		    GetFileExInfoStandard, &data) != TRUE) {
+		return TCL_OK;
 	    }
+	    attr = data.dwFileAttributes;
 
 	    if (NativeMatchType(WinIsDrive(str,len), attr, native, types)) {
 		Tcl_ListObjAppendElement(interp, resultPtr, pathPtr);
@@ -1023,8 +1013,7 @@ TclpMatchInDirectory(
 	}
 
 	native = Tcl_WinUtfToTChar(dirName, -1, &ds);
-	if (FindFirstFileEx == NULL || (types == NULL)
-		|| (types->type != TCL_GLOB_TYPE_DIR)) {
+	if ((types == NULL) || (types->type != TCL_GLOB_TYPE_DIR)) {
 	    handle = FindFirstFile(native, &data);
 	} else {
 	    /*
diff --git a/win/tclWinPipe.c b/win/tclWinPipe.c
index 10b6ab2..f1b18df 100644
--- a/win/tclWinPipe.c
+++ b/win/tclWinPipe.c
@@ -320,7 +320,6 @@ PipeSetupProc(
     PipeInfo *infoPtr;
     Tcl_Time blockTime = { 0, 0 };
     int block = 1;
-    WinFile *filePtr;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
     if (!(flags & TCL_FILE_EVENTS)) {
@@ -334,13 +333,11 @@ PipeSetupProc(
     for (infoPtr = tsdPtr->firstPipePtr; infoPtr != NULL;
 	    infoPtr = infoPtr->nextPtr) {
 	if (infoPtr->watchMask & TCL_WRITABLE) {
-	    filePtr = (WinFile*) infoPtr->writeFile;
 	    if (WaitForSingleObject(infoPtr->writable, 0) != WAIT_TIMEOUT) {
 		block = 0;
 	    }
 	}
 	if (infoPtr->watchMask & TCL_READABLE) {
-	    filePtr = (WinFile*) infoPtr->readFile;
 	    if (WaitForRead(infoPtr, 0) >= 0) {
 		block = 0;
 	    }
@@ -375,7 +372,6 @@ PipeCheckProc(
 {
     PipeInfo *infoPtr;
     PipeEvent *evPtr;
-    WinFile *filePtr;
     int needEvent;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
@@ -398,13 +394,11 @@ PipeCheckProc(
 	 */
 
 	needEvent = 0;
-	filePtr = (WinFile*) infoPtr->writeFile;
 	if ((infoPtr->watchMask & TCL_WRITABLE) &&
 		(WaitForSingleObject(infoPtr->writable, 0) != WAIT_TIMEOUT)) {
 	    needEvent = 1;
 	}
 
-	filePtr = (WinFile*) infoPtr->readFile;
 	if ((infoPtr->watchMask & TCL_READABLE) &&
 		(WaitForRead(infoPtr, 0) >= 0)) {
 	    needEvent = 1;
@@ -2239,7 +2233,6 @@ PipeEventProc(
 {
     PipeEvent *pipeEvPtr = (PipeEvent *)evPtr;
     PipeInfo *infoPtr;
-    WinFile *filePtr;
     int mask;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
@@ -2276,14 +2269,12 @@ PipeEventProc(
      * detected EOF.
      */
 
-    filePtr = (WinFile*) ((PipeInfo*)infoPtr)->writeFile;
     mask = 0;
     if ((infoPtr->watchMask & TCL_WRITABLE) &&
 	    (WaitForSingleObject(infoPtr->writable, 0) != WAIT_TIMEOUT)) {
 	mask = TCL_WRITABLE;
     }
 
-    filePtr = (WinFile*) ((PipeInfo*)infoPtr)->readFile;
     if ((infoPtr->watchMask & TCL_READABLE) && (WaitForRead(infoPtr,0) >= 0)) {
 	if (infoPtr->readFlags & PIPE_EOF) {
 	    mask = TCL_READABLE;
diff --git a/win/tclWinSerial.c b/win/tclWinSerial.c
index 503358b..0941d4a 100644
--- a/win/tclWinSerial.c
+++ b/win/tclWinSerial.c
@@ -1433,9 +1433,7 @@ TclWinSerialReopen(
     const TCHAR *name,
     DWORD access)
 {
-    ThreadSpecificData *tsdPtr;
-
-    tsdPtr = SerialInit();
+    SerialInit();
 
     /*
      * Multithreaded I/O needs the overlapped flag set otherwise
diff --git a/win/tclWinSock.c b/win/tclWinSock.c
index 4134420..0c1a270 100644
--- a/win/tclWinSock.c
+++ b/win/tclWinSock.c
@@ -1964,8 +1964,10 @@ TcpSetOptionProc(
     const char *optionName,	/* Name of the option to set. */
     const char *value)		/* New value for option. */
 {
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
     SocketInfo *infoPtr = instanceData;
     SOCKET sock;
+#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
 
     /*
      * Check that WinSock is initialized; do not call it if not, to prevent
@@ -1980,9 +1982,9 @@ TcpSetOptionProc(
 	return TCL_ERROR;
     }
 
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
     sock = infoPtr->sockets->fd;
 
-#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
     if (!strcasecmp(optionName, "-keepalive")) {
 	BOOL val = FALSE;
 	int boolVar, rtn;