diff --git a/ANNOUNCE b/ANNOUNCE
index 19255a13..cc626c64 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -43,6 +43,7 @@ Other information:
 Changes since the last public release (1.2.46):
 
 version 1.2.48beta01 [February 20, 2012]
+  Removed two useless #ifdef directives from pngread.c and one from pngrutil.c
 
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/CHANGES b/CHANGES
index eb3e00f6..24a1317d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2746,6 +2746,7 @@ version 1.0.57 and 1.2.47 [February 18, 2012]
   No changes.
 
 version 1.2.48beta01 [February 20, 2012]
+  Removed two useless #ifdef directives from pngread.c and one from pngrutil.c
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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diff --git a/pngread.c b/pngread.c
index 62076248..ec3b889f 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,8 +1,8 @@
 
 /* pngread.c - read a PNG file
  *
- * Last changed in libpng 1.2.44 [June 26, 2010]
- * Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.48 [February 20, 2012]
+ * Copyright (c) 1998-2012 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.)
  *
@@ -19,7 +19,6 @@
 #include "png.h"
 #ifdef PNG_READ_SUPPORTED
 
-
 /* Create a PNG structure for reading, and allocate any memory needed. */
 png_structp PNGAPI
 png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr,
@@ -69,14 +68,8 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
 #ifdef PNG_USER_LIMITS_SUPPORTED
    png_ptr->user_width_max = PNG_USER_WIDTH_MAX;
    png_ptr->user_height_max = PNG_USER_HEIGHT_MAX;
-#  ifdef PNG_USER_CHUNK_CACHE_MAX
    /* Added at libpng-1.2.43 and 1.4.0 */
    png_ptr->user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
-#  endif
-#  ifdef PNG_SET_USER_CHUNK_MALLOC_MAX
-   /* Added at libpng-1.2.43 and 1.4.1 */
-   png_ptr->user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX;
-#  endif
 #endif
 
 #ifdef PNG_SETJMP_SUPPORTED
diff --git a/pngrutil.c b/pngrutil.c
index 21392056..c23ee42a 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.2.47 [February 18, 2012]
+ * Last changed in libpng 1.2.48 [February 20, 2012]
  * Copyright (c) 1998-2012 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.)
@@ -341,14 +341,9 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
        */
       if (prefix_size >= (~(png_size_t)0) - 1 ||
          expanded_size >= (~(png_size_t)0) - 1 - prefix_size
-#ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
-         || (png_ptr->user_chunk_malloc_max &&
-          (prefix_size + expanded_size >= png_ptr->user_chunk_malloc_max - 1))
-#else
-#  ifdef PNG_USER_CHUNK_MALLOC_MAX
+#ifdef PNG_USER_CHUNK_MALLOC_MAX
          || ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
           prefix_size + expanded_size >= PNG_USER_CHUNK_MALLOC_MAX - 1)
-#  endif
 #endif
           )
          png_warning(png_ptr, "Exceeded size limit while expanding chunk");