libdthelp: Resolve uninitialized warnings

cde/lib/DtHelp/il/ilX.c

@@ -1221,7 +1221,7 @@ ilPipeInfo                  info;
 ilXWCPtr           pXWC;
 ilXPrivPtr         pPriv;
 ilSrcElementData           *pSrcData, srcData;
-unsigned long               bufferSize;
+unsigned long               bufferSize = 0;
 /*
 ** We need to use the execute fucntion with the ratio parameter.
 */

cde/lib/DtHelp/il/ilcrop.c

@@ -440,7 +440,7 @@ ilBool ilCrop (
 {
 unsigned int            state;
 ilPipeInfo              info;
-ilCropPrivptr  pPriv;
+ilCropPrivptr  pPriv = NULL;
 ilDstElementData        dstdata;
 ilImageDes              imdes;
 ilImageFormat           imformat;

cde/lib/DtHelp/il/ildecompg3.c

@@ -260,7 +260,7 @@ unsigned long      *pNLines
 	ilDecompG3G4PrivPtr pPriv;             /* Pointer to private image data         */
 
 	ilPtr               dstImageP;         /* Pointer to the Destn. Image           */
-	ilPtr               pRefLine;          /* Pointer to the Reference line         */
+	ilPtr               pRefLine = NULL;   /* Pointer to the Reference line         */
 	ilError             error;             /* Returned error                        */
 	int                 dstBytesPerRow;    /* no.of byte per Row in the dest image  */
 	ilBool              Is_2DCoding;       /* G3 2 D coding is present,  if True    */

cde/lib/DtHelp/il/ildither.c

@@ -1024,7 +1024,7 @@ IL_PRIVATE ilBool _ilConvertRGBToPalette (
     unsigned short         *pPalette;
     long                   *pColorTable;
     ilBool                  diffusion, chooseColors;
-    int                     i, shifts[3] = { 0, 0, 0 }, nColors;
+    int                     i, shifts[3] = { 0, 0, 0 }, nColors = 0;
     const unsigned short         *pMulTable[3] = { NULL, NULL, NULL };      /* dither other than 484 only: pMul? */
     static ilConvertToPaletteInfo  defaultConvert = 
                                   {IL_DIFFUSION, { 4, 8, 4 }, 8, IL_PALETTE, (ilObject)NULL};

cde/lib/DtHelp/il/ilimage.c

@@ -323,7 +323,7 @@ IL_PRIVATE ilError _ilMallocImagePixels (
     )
 {
 int            plane, nPlanes;
-int                     MCUMinus1;
+int                     MCUMinus1 = 0;
 long           nBytesToAlloc, nBytesPerRow, allocHeight;
 ilPtr                   pPixels;
 long                    rowBytesPerPlane [IL_MAX_SAMPLES];

cde/lib/DtHelp/il/iljpgdecodejif.c

@@ -120,7 +120,7 @@ iljpgError iljpgDecodeJIF (
     iljpgDataPtr pData;
     iljpgBool           firstMarker, SOSFound, SOF0Found;
     iljpgError          error;
-    int                 value, nFrameComps, length;
+    int                 value, nFrameComps = 0, length;
     iljpgPtr           *ppTable;
     iljpgCompDataPtr    pComp;
     int        i, index;

cde/lib/DtHelp/il/iljpgdehuff.c

@@ -200,7 +200,7 @@ static iljpgError build_huffman_tables (
                 lookup_size,
                 code, mask;
         tree_node *tree_nodes,          /* pointer to pool of tree nodes */
-                  *nodep, *leafp, **followp;  /* misc aux. tree pointers */
+                  *nodep, *leafp = NULL, **followp;  /* misc aux. tree pointers */
         LOOKUP    *lookup_symb, *lookup_len; /* pointers to lookup tables */
         int       absize; /* actual number of Huffman-encoded symbols */
         int      *hufvals, *hufcodes, *huflen; /* intermediate tables */

cde/lib/DtHelp/il/ilscale.c

@@ -784,7 +784,7 @@ ilBool ilScale (
 {
 unsigned int             state;
 ilPipeInfo               info;
-ilScalePrivptr  pPriv;
+ilScalePrivptr  pPriv = NULL;
 ilDstElementData         dstdata;
 ilImageDes               imdes;
 ilImageFormat            imformat;

cde/lib/DtHelp/il/iltiff.c

@@ -490,17 +490,17 @@ static unsigned short tagNumbers [] = {
 #define AI_NTAGS            (sizeof(tagNumbers) / sizeof (unsigned short))
 #define AIL_FATAL_ERROR(_error) {error = (_error);  goto AILFatalError; }
 
-ilFileImageRelation        imageType;
+ilFileImageRelation        imageType = mainImage;
 ilFileTag                  *tag [AI_NTAGS];
 ilBool                      present;
 ilError                     error;
 ilPtr                       pTagAlloc;
 unsigned long      value;
-int                         i, tagIndex, nBits, resolutionUnit, fillOrder;
+int                         i, tagIndex, nBits, resolutionUnit, fillOrder = 0;
 unsigned long               group3CompData;
 unsigned long               group4CompData;
 ilFileTag         *pTag;
-ilYCbCrInfo                *pYCbCr;     /* null if not YCbCr ; else -> des...YCbCr */
+ilYCbCrInfo                *pYCbCr = NULL;     /* null if not YCbCr ; else -> des...YCbCr */
 
         /*  Init/zero des and format in *pFileImage.
         */

cde/lib/DtHelp/il/iltiffread.c

@@ -164,9 +164,9 @@ ilFileTag     *pTag;
 int                     nTags;              /* # of tags to read */
 unsigned short          numbers[MAX_NTAGS]; /* tag ids to read */
 ilFileTag              *tags [MAX_NTAGS];   /* ptr to returned data */
-int                     stripOffsetsIndex, stripByteCountsIndex, colorMapIndex,
-                        QTablesIndex, DCTablesIndex, ACTablesIndex, softwareIndex,
-                        restartIndex;
+int                     stripOffsetsIndex, stripByteCountsIndex = 0, colorMapIndex,
+                        QTablesIndex = 0, DCTablesIndex = 0, ACTablesIndex = 0, softwareIndex = 0,
+                        restartIndex = 0;
 #define ADD_TAG(_index, _tagid) { \
     _index = nTags++;             \
     numbers[_index] = _tagid;     \