diff --git a/png.c b/png.c
index 4ff5c81e8..20e7190d7 100644
--- a/png.c
+++ b/png.c
@@ -1,7 +1,7 @@
 
 /* png.c - location for general purpose libpng functions
  *
- * Last changed in libpng 1.5.0 [October 8, 2010]
+ * Last changed in libpng 1.5.0 [October 12, 2010]
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -650,7 +650,7 @@ png_uint_32 PNGAPI
 png_access_version_number(void)
 {
    /* Version of *.c files used when building libpng */
-   return((png_uint_32) PNG_LIBPNG_VER);
+   return((png_uint_32)PNG_LIBPNG_VER);
 }
 
 
@@ -695,14 +695,14 @@ png_check_cHRM_fixed(png_structp png_ptr,
         "Ignoring attempt to set negative chromaticity value");
       ret = 0;
    }
-   if (white_x > (png_fixed_point) PNG_UINT_31_MAX ||
-       white_y > (png_fixed_point) PNG_UINT_31_MAX ||
-         red_x > (png_fixed_point) PNG_UINT_31_MAX ||
-         red_y > (png_fixed_point) PNG_UINT_31_MAX ||
-       green_x > (png_fixed_point) PNG_UINT_31_MAX ||
-       green_y > (png_fixed_point) PNG_UINT_31_MAX ||
-        blue_x > (png_fixed_point) PNG_UINT_31_MAX ||
-        blue_y > (png_fixed_point) PNG_UINT_31_MAX )
+   if (white_x > (png_fixed_point)PNG_UINT_31_MAX ||
+       white_y > (png_fixed_point)PNG_UINT_31_MAX ||
+         red_x > (png_fixed_point)PNG_UINT_31_MAX ||
+         red_y > (png_fixed_point)PNG_UINT_31_MAX ||
+       green_x > (png_fixed_point)PNG_UINT_31_MAX ||
+       green_y > (png_fixed_point)PNG_UINT_31_MAX ||
+        blue_x > (png_fixed_point)PNG_UINT_31_MAX ||
+        blue_y > (png_fixed_point)PNG_UINT_31_MAX )
    {
       png_warning(png_ptr,
         "Ignoring attempt to set chromaticity value exceeding 21474.83");
diff --git a/pngread.c b/pngread.c
index b7d140b39..f487a5e62 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,7 +1,7 @@
 
 /* pngread.c - read a PNG file
  *
- * Last changed in libpng 1.5.0 [October 8, 2010]
+ * Last changed in libpng 1.5.0 [October 12, 2010]
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -521,7 +521,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
       return;
 
    png_debug2(1, "in png_read_row (row %lu, pass %d)",
-       (unsigned long) png_ptr->row_number, png_ptr->pass);
+       (unsigned long)png_ptr->row_number, png_ptr->pass);
 
    if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
       png_read_start_row(png_ptr);
diff --git a/pngrutil.c b/pngrutil.c
index 221f414e9..399517294 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1305,7 +1305,7 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
       return;
    }
 
-   dl = (png_int_32) ( data_length / entry_size);
+   dl = (png_int_32)( data_length / entry_size);
    max_dl = PNG_SIZE_MAX / png_sizeof(png_sPLT_entry);
 
    if (dl > max_dl)
@@ -1314,7 +1314,7 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
        return;
    }
 
-   new_palette.nentries = (png_int_32) ( data_length / entry_size);
+   new_palette.nentries = (png_int_32)( data_length / entry_size);
    new_palette.entries = (png_sPLT_entryp)png_malloc_warn(
        png_ptr, new_palette.nentries * png_sizeof(png_sPLT_entry));
 
@@ -1617,8 +1617,8 @@ png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
    }
 
    num = length / 2 ;
-   if (num != (unsigned int) png_ptr->num_palette || num >
-       (unsigned int) PNG_MAX_PALETTE_LENGTH)
+   if (num != (unsigned int)png_ptr->num_palette || num >
+       (unsigned int)PNG_MAX_PALETTE_LENGTH)
    {
       png_warning(png_ptr, "Incorrect hIST chunk length");
       png_crc_finish(png_ptr, length);
diff --git a/pngtest.c b/pngtest.c
index ce89819ef..50613cd9a 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,7 +1,7 @@
 
 /* pngtest.c - a simple test program to test libpng
  *
- * Last changed in libpng 1.5.0 [October 8, 2010]
+ * Last changed in libpng 1.5.0 [October 12, 2010]
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -1597,7 +1597,7 @@ main(int argc, char *argv[])
             {
                fprintf(STDERR, " %lu bytes at %x\n",
                  (unsigned long)pinfo->size,
-                 (unsigned int) pinfo->pointer);
+                 (unsigned int)pinfo->pointer);
                pinfo = pinfo->next;
             }
          }
diff --git a/pngwutil.c b/pngwutil.c
index d053b470f..02dad08af 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * Last changed in libpng 1.5.0 [October 8, 2010]
+ * Last changed in libpng 1.5.0 [October 12, 2010]
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -1616,7 +1616,7 @@ png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0,
    {
       params_len[i] = png_strlen(params[i]) + (i == nparams - 1 ? 0 : 1);
       png_debug2(3, "pCAL parameter %d length = %lu", i,
-          (unsigned long) params_len[i]);
+          (unsigned long)params_len[i]);
       total_len += (png_size_t)params_len[i];
    }