Fix some `cppcheck` warnings.

* src/bzip2/ftbzip2.c (ft_bzip2_file_skip_output), src/gzip/ftgzip.c
(ft_gzip_file_skip_output): Reduce scope of `delta`.

* src/psaux/psintrp.c, src/psaux/psintrp.h (cf2_interpT2CharString): Add
`const` to `buf` parameter.

* src/raster/ftraster.c (DelOld): Add `const` to `profile` parameter.
(Vertical_Sweep_Span): Reduce scope of `target`.
(FT_Outline_Get_CBox): Reduce scope of `xMin`, `xMax`, `yMin`, `yMax`.

* src/smooth/ftgrays.c (gray_render_conic): Reduce scope of `split`.
(gray_sweep, gray_sweep_direct): Reduce scope of `area`.

* src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Reduce scope of
`temp`.

7 files changed, 34 insertions, 23 deletions

diff --git a/src/bzip2/ftbzip2.c b/src/bzip2/ftbzip2.c
index 3df7496a6..b7c270259 100644
--- a/src/bzip2/ftbzip2.c
+++ b/src/bzip2/ftbzip2.c
@@ -327,12 +327,13 @@
                              FT_ULong      count )
   {
     FT_Error  error = FT_Err_Ok;
-    FT_ULong  delta;
 
 
     for (;;)
     {
-      delta = (FT_ULong)( zip->limit - zip->cursor );
+      FT_ULong  delta = (FT_ULong)( zip->limit - zip->cursor );
+
+
       if ( delta >= count )
         delta = count;
 
diff --git a/src/gzip/ftgzip.c b/src/gzip/ftgzip.c
index 788a37b31..42b7543a8 100644
--- a/src/gzip/ftgzip.c
+++ b/src/gzip/ftgzip.c
@@ -467,12 +467,13 @@
                             FT_ULong     count )
   {
     FT_Error  error = FT_Err_Ok;
-    FT_ULong  delta;
 
 
     for (;;)
     {
-      delta = (FT_ULong)( zip->limit - zip->cursor );
+      FT_ULong  delta = (FT_ULong)( zip->limit - zip->cursor );
+
+
       if ( delta >= count )
         delta = count;
 
diff --git a/src/psaux/psintrp.c b/src/psaux/psintrp.c
index 40e927663..112936e21 100644
--- a/src/psaux/psintrp.c
+++ b/src/psaux/psintrp.c
@@ -469,7 +469,7 @@
    */
   FT_LOCAL_DEF( void )
   cf2_interpT2CharString( CF2_Font              font,
-                          CF2_Buffer            buf,
+                          const CF2_Buffer      buf,
                           CF2_OutlineCallbacks  callbacks,
                           const FT_Vector*      translation,
                           FT_Bool               doingSeac,
diff --git a/src/psaux/psintrp.h b/src/psaux/psintrp.h
index 669c09c0a..d8b9342ec 100644
--- a/src/psaux/psintrp.h
+++ b/src/psaux/psintrp.h
@@ -65,7 +65,7 @@ FT_BEGIN_HEADER
 
   FT_LOCAL( void )
   cf2_interpT2CharString( CF2_Font              font,
-                          CF2_Buffer            charstring,
+                          const CF2_Buffer      buf,
                           CF2_OutlineCallbacks  callbacks,
                           const FT_Vector*      translation,
                           FT_Bool               doingSeac,
diff --git a/src/raster/ftraster.c b/src/raster/ftraster.c
index fbcf8d22a..4c1709726 100644
--- a/src/raster/ftraster.c
+++ b/src/raster/ftraster.c
@@ -2095,8 +2095,8 @@
    *   Removes an old profile from a linked list.
    */
   static void
-  DelOld( PProfileList  list,
-          PProfile      profile )
+  DelOld( PProfileList    list,
+          const PProfile  profile )
   {
     PProfile  *old, current;
 
@@ -2206,8 +2206,7 @@
                                 PProfile    left,
                                 PProfile    right )
   {
-    Long   e1, e2;
-    Byte*  target;
+    Long  e1, e2;
 
     Int  dropOutControl = left->flags & 7;
 
@@ -2240,6 +2239,8 @@
 
     if ( e2 >= 0 && e1 < ras.bWidth )
     {
+      Byte*  target;
+
       Int   c1, c2;
       Byte  f1, f2;
 
@@ -2949,11 +2950,11 @@
   FT_Outline_Get_CBox( const FT_Outline*  outline,
                        FT_BBox           *acbox )
   {
-    Long  xMin, yMin, xMax, yMax;
-
-
     if ( outline && acbox )
     {
+      Long  xMin, yMin, xMax, yMax;
+
+
       if ( outline->n_points == 0 )
       {
         xMin = 0;
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index 86118fb36..131b86c3e 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -658,8 +658,8 @@ typedef ptrdiff_t  FT_PtrDist;
       return;
     }
 
-    fx1   = FRACT( x1 );
-    fx2   = FRACT( x2 );
+    fx1 = FRACT( x1 );
+    fx2 = FRACT( x2 );
 
     /* everything is located in a single cell.  That is easy! */
     /*                                                        */
@@ -1256,7 +1256,7 @@ typedef ptrdiff_t  FT_PtrDist;
     FT_Vector   bez_stack[16 * 2 + 1];  /* enough to accommodate bisections */
     FT_Vector*  arc = bez_stack;
     TPos        dx, dy;
-    int         draw, split;
+    int         draw;
 
 
     arc[0].x = UPSCALE( to->x );
@@ -1299,7 +1299,9 @@ typedef ptrdiff_t  FT_PtrDist;
     /* many times as there are trailing zeros in the counter.         */
     do
     {
-      split = draw & ( -draw );  /* isolate the rightmost 1-bit */
+      int  split = draw & ( -draw );  /* isolate the rightmost 1-bit */
+
+
       while ( ( split >>= 1 ) )
       {
         gray_split_conic( arc );
@@ -1466,7 +1468,8 @@ typedef ptrdiff_t  FT_PtrDist;
   static void
   gray_sweep( RAS_ARG )
   {
-    int  fill = ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ? 0x100 : INT_MIN;
+    int  fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100
+                                                                 : INT_MIN;
     int  coverage;
     int  y;
 
@@ -1476,13 +1479,15 @@ typedef ptrdiff_t  FT_PtrDist;
       PCell   cell  = ras.ycells[y - ras.min_ey];
       TCoord  x     = ras.min_ex;
       TArea   cover = 0;
-      TArea   area;
 
       unsigned char*  line = ras.target.origin - ras.target.pitch * y;
 
 
       for ( ; !CELL_IS_NULL( cell ); cell = cell->next )
       {
+        TArea  area;
+
+
         if ( cover != 0 && cell->x > x )
         {
           FT_FILL_RULE( coverage, cover, fill );
@@ -1513,7 +1518,8 @@ typedef ptrdiff_t  FT_PtrDist;
   static void
   gray_sweep_direct( RAS_ARG )
   {
-    int  fill = ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ? 0x100 : INT_MIN;
+    int  fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100
+                                                                 : INT_MIN;
     int  coverage;
     int  y;
 
@@ -1526,11 +1532,13 @@ typedef ptrdiff_t  FT_PtrDist;
       PCell   cell  = ras.ycells[y - ras.min_ey];
       TCoord  x     = ras.min_ex;
       TArea   cover = 0;
-      TArea   area;
 
 
       for ( ; !CELL_IS_NULL( cell ); cell = cell->next )
       {
+        TArea  area;
+
+
         if ( cover != 0 && cell->x > x )
         {
           FT_FILL_RULE( coverage, cover, fill );
diff --git a/src/tools/apinames.c b/src/tools/apinames.c
index aeecf88d2..ff5380771 100644
--- a/src/tools/apinames.c
+++ b/src/tools/apinames.c
@@ -167,7 +167,6 @@ names_dump( FILE*         out,
   case OUTPUT_WATCOM_LBC:
     {
       const char*  dot;
-      char         temp[512];
 
 
       if ( !dll_name )
@@ -181,7 +180,8 @@ names_dump( FILE*         out,
       dot = strchr( dll_name, '.' );
       if ( dot )
       {
-        int  len = dot - dll_name;
+        char  temp[512];
+        int   len = dot - dll_name;
 
 
         if ( len > (int)( sizeof ( temp ) - 1 ) )