diff -ru4NwbB libpng-1.5.12/png.h libpng-1.5.13beta01/png.h
--- libpng-1.5.12/png.h	2012-07-10 21:48:03.195507100 -0500
+++ libpng-1.5.13beta01/png.h	2012-08-08 17:41:53.350513655 -0500
@@ -177,8 +177,9 @@
  *    1.5.11beta01            15    10511  15.so.15.11[.0]
  *    1.5.11rc01-05           15    10511  15.so.15.11[.0]
  *    1.5.11                  15    10511  15.so.15.11[.0]
  *    1.5.12                  15    10512  15.so.15.12[.0]
+ *    1.5.13beta01            15    10513  15.so.15.13[.0]
  *
  *   Henceforth the source version will match the shared-library major
  *   and minor numbers; the shared-library major version number will be
  *   used for changes in backward compatibility, as it is intended.  The
@@ -1157,11 +1158,11 @@
 #define PNG_ERROR_ACTION_ERROR 3
 #define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/
 
 PNG_FP_EXPORT(32, void, png_set_rgb_to_gray, (png_structp png_ptr,
-    int error_action, double red, double green));
+    int error_action, double red, double green))
 PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structp png_ptr,
-    int error_action, png_fixed_point red, png_fixed_point green));
+    int error_action, png_fixed_point red, png_fixed_point green))
 
 PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_const_structp
     png_ptr));
 #endif
@@ -1227,11 +1228,11 @@
 #define PNG_ALPHA_OPTIMIZED     2 /* 'PNG' for opaque pixels, else 'STANDARD' */
 #define PNG_ALPHA_BROKEN        3 /* the alpha channel is gamma encoded */
 
 PNG_FP_EXPORT(227, void, png_set_alpha_mode, (png_structp png_ptr, int mode,
-    double output_gamma));
+    double output_gamma))
 PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structp png_ptr,
-    int mode, png_fixed_point output_gamma));
+    int mode, png_fixed_point output_gamma))
 #endif
 
 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED)
 /* The output_gamma value is a screen gamma in libpng terminology: it expresses
@@ -1452,12 +1453,12 @@
  * errors if the PNG file contains a bKGD chunk.
  */
 PNG_FP_EXPORT(47, void, png_set_background, (png_structp png_ptr,
     png_const_color_16p background_color, int background_gamma_code,
-    int need_expand, double background_gamma));
+    int need_expand, double background_gamma))
 PNG_FIXED_EXPORT(215, void, png_set_background_fixed, (png_structp png_ptr,
     png_const_color_16p background_color, int background_gamma_code,
-    int need_expand, png_fixed_point background_gamma));
+    int need_expand, png_fixed_point background_gamma))
 #endif
 #ifdef PNG_READ_BACKGROUND_SUPPORTED
 #  define PNG_BACKGROUND_GAMMA_UNKNOWN 0
 #  define PNG_BACKGROUND_GAMMA_SCREEN  1
@@ -1504,11 +1505,11 @@
  * is the inverse of a 'screen gamma' value.
  */
 PNG_FP_EXPORT(50, void, png_set_gamma,
     (png_structp png_ptr, double screen_gamma,
-    double override_file_gamma));
+    double override_file_gamma))
 PNG_FIXED_EXPORT(208, void, png_set_gamma_fixed, (png_structp png_ptr,
-    png_fixed_point screen_gamma, png_fixed_point override_file_gamma));
+    png_fixed_point screen_gamma, png_fixed_point override_file_gamma))
 #endif
 
 #ifdef PNG_WRITE_FLUSH_SUPPORTED
 /* Set how many lines between output flushes - 0 for no flushing */
@@ -1666,13 +1667,13 @@
  * to the UNWEIGHTED method, but with added encoding time/computation.
  */
 PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structp png_ptr,
     int heuristic_method, int num_weights, png_const_doublep filter_weights,
-    png_const_doublep filter_costs));
+    png_const_doublep filter_costs))
 PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
     (png_structp png_ptr,
     int heuristic_method, int num_weights, png_const_fixed_point_p
-    filter_weights, png_const_fixed_point_p filter_costs));
+    filter_weights, png_const_fixed_point_p filter_costs))
 #endif /*  PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
 
 /* Heuristic used for row filter selection.  These defines should NOT be
  * changed.
@@ -2052,11 +2053,11 @@
     (png_const_structp png_ptr, png_const_infop info_ptr));
 
 /* Returns pixel aspect ratio, computed from pHYs chunk data.  */
 PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))
 PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))
 
 /* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
 PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels,
     (png_const_structp png_ptr, png_const_infop info_ptr));
@@ -2087,68 +2088,68 @@
 #ifdef PNG_cHRM_SUPPORTED
 PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_const_structp png_ptr,
    png_const_infop info_ptr, double *white_x, double *white_y, double *red_x,
     double *red_y, double *green_x, double *green_y, double *blue_x,
-    double *blue_y));
+    double *blue_y))
 PNG_FP_EXPORT(230, png_uint_32, png_get_cHRM_XYZ, (png_structp png_ptr,
     png_const_infop info_ptr, double *red_X, double *red_Y, double *red_Z,
     double *green_X, double *green_Y, double *green_Z, double *blue_X,
-    double *blue_Y, double *blue_Z));
+    double *blue_Y, double *blue_Z))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* Otherwise not implemented */
 PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed,
     (png_const_structp png_ptr,
     png_const_infop info_ptr, png_fixed_point *int_white_x,
     png_fixed_point *int_white_y, png_fixed_point *int_red_x,
     png_fixed_point *int_red_y, png_fixed_point *int_green_x,
     png_fixed_point *int_green_y, png_fixed_point *int_blue_x,
-    png_fixed_point *int_blue_y));
+    png_fixed_point *int_blue_y))
 #endif
 PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed,
     (png_structp png_ptr, png_const_infop info_ptr,
     png_fixed_point *int_red_X, png_fixed_point *int_red_Y,
     png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
     png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
     png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
-    png_fixed_point *int_blue_Z));
+    png_fixed_point *int_blue_Z))
 #endif
 
 #ifdef PNG_cHRM_SUPPORTED
 PNG_FP_EXPORT(135, void, png_set_cHRM,
     (png_structp png_ptr, png_infop info_ptr,
     double white_x, double white_y, double red_x, double red_y, double green_x,
-    double green_y, double blue_x, double blue_y));
+    double green_y, double blue_x, double blue_y))
 PNG_FP_EXPORT(232, void, png_set_cHRM_XYZ, (png_structp png_ptr,
     png_infop info_ptr, double red_X, double red_Y, double red_Z,
     double green_X, double green_Y, double green_Z, double blue_X,
-    double blue_Y, double blue_Z));
+    double blue_Y, double blue_Z))
 PNG_FIXED_EXPORT(136, void, png_set_cHRM_fixed, (png_structp png_ptr,
     png_infop info_ptr, png_fixed_point int_white_x,
     png_fixed_point int_white_y, png_fixed_point int_red_x,
     png_fixed_point int_red_y, png_fixed_point int_green_x,
     png_fixed_point int_green_y, png_fixed_point int_blue_x,
-    png_fixed_point int_blue_y));
+    png_fixed_point int_blue_y))
 PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_structp png_ptr,
     png_infop info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y,
     png_fixed_point int_red_Z, png_fixed_point int_green_X,
     png_fixed_point int_green_Y, png_fixed_point int_green_Z,
     png_fixed_point int_blue_X, png_fixed_point int_blue_Y,
-    png_fixed_point int_blue_Z));
+    png_fixed_point int_blue_Z))
 #endif
 
 #ifdef PNG_gAMA_SUPPORTED
 PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA,
     (png_const_structp png_ptr, png_const_infop info_ptr,
-    double *file_gamma));
+    double *file_gamma))
 PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed,
     (png_const_structp png_ptr, png_const_infop info_ptr,
-    png_fixed_point *int_file_gamma));
+    png_fixed_point *int_file_gamma))
 #endif
 
 #ifdef PNG_gAMA_SUPPORTED
 PNG_FP_EXPORT(139, void, png_set_gAMA, (png_structp png_ptr,
-    png_infop info_ptr, double file_gamma));
+    png_infop info_ptr, double file_gamma))
 PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_structp png_ptr,
-    png_infop info_ptr, png_fixed_point int_file_gamma));
+    png_infop info_ptr, png_fixed_point int_file_gamma))
 #endif
 
 #ifdef PNG_hIST_SUPPORTED
 PNG_EXPORT(141, png_uint_32, png_get_hIST,
@@ -2312,9 +2313,9 @@
 
 #ifdef PNG_sCAL_SUPPORTED
 PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL,
     (png_const_structp png_ptr, png_const_infop info_ptr,
-    int *unit, double *width, double *height));
+    int *unit, double *width, double *height))
 #ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
 /* NOTE: this API is currently implemented using floating point arithmetic,
  * consequently it can only be used on systems with floating point support.
  * In any case the range of values supported by png_fixed_point is small and it
@@ -2322,20 +2323,20 @@
  */
 PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed,
     (png_structp png_ptr, png_const_infop info_ptr, int *unit,
     png_fixed_point *width,
-    png_fixed_point *height));
+    png_fixed_point *height))
 #endif
 PNG_EXPORT(169, png_uint_32, png_get_sCAL_s,
     (png_const_structp png_ptr, png_const_infop info_ptr,
     int *unit, png_charpp swidth, png_charpp sheight));
 
 PNG_FP_EXPORT(170, void, png_set_sCAL,
     (png_structp png_ptr, png_infop info_ptr,
-    int unit, double width, double height));
+    int unit, double width, double height))
 PNG_FIXED_EXPORT(213, void, png_set_sCAL_fixed, (png_structp png_ptr,
    png_infop info_ptr, int unit, png_fixed_point width,
-   png_fixed_point height));
+   png_fixed_point height))
 PNG_EXPORT(171, void, png_set_sCAL_s,
     (png_structp png_ptr, png_infop info_ptr,
     int unit, png_const_charp swidth, png_const_charp sheight));
 #endif /* PNG_sCAL_SUPPORTED */
@@ -2446,19 +2447,19 @@
 PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch,
     (png_const_structp png_ptr, png_const_infop info_ptr));
 
 PNG_FP_EXPORT(196, float, png_get_x_offset_inches,
-    (png_const_structp png_ptr, png_const_infop info_ptr));
+    (png_const_structp png_ptr, png_const_infop info_ptr))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
 PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed,
-    (png_structp png_ptr, png_const_infop info_ptr));
+    (png_structp png_ptr, png_const_infop info_ptr))
 #endif
 
 PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_const_structp png_ptr,
-    png_const_infop info_ptr));
+    png_const_infop info_ptr))
 #ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
 PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed,
-    (png_structp png_ptr, png_const_infop info_ptr));
+    (png_structp png_ptr, png_const_infop info_ptr))
 #endif
 
 #  ifdef PNG_pHYs_SUPPORTED
 PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_const_structp png_ptr,
diff -ru4NwbB libpng-1.5.12/pngconf.h libpng-1.5.13beta01/pngconf.h
--- libpng-1.5.12/pngconf.h	2012-07-10 21:48:03.211355202 -0500
+++ libpng-1.5.13beta01/pngconf.h	2012-08-08 17:41:53.357868797 -0500
@@ -343,8 +343,9 @@
 #    endif
 #    ifndef PNG_NORETURN
 #      define PNG_NORETURN   __attribute__((__noreturn__))
 #    endif
+#    if __GNUC__ >= 3
 #    ifndef PNG_ALLOCATED
 #      define PNG_ALLOCATED  __attribute__((__malloc__))
 #    endif
 #    ifndef PNG_DEPRECATED
@@ -358,8 +359,9 @@
 #        define PNG_PRIVATE \
           __attribute__((__deprecated__))
 #      endif
 #    endif
+#    endif /*  __GNUC__ >= 3 */
 #  endif /* __GNUC__ */
 
 #  if defined(_MSC_VER)  && (_MSC_VER >= 1300)
 #    ifndef PNG_USE_RESULT
@@ -399,17 +401,17 @@
 #endif
 #ifndef PNG_FP_EXPORT     /* A floating point API. */
 #  ifdef PNG_FLOATING_POINT_SUPPORTED
 #     define PNG_FP_EXPORT(ordinal, type, name, args)\
-         PNG_EXPORT(ordinal, type, name, args)
+         PNG_EXPORT(ordinal, type, name, args);
 #  else                   /* No floating point APIs */
 #     define PNG_FP_EXPORT(ordinal, type, name, args)
 #  endif
 #endif
 #ifndef PNG_FIXED_EXPORT  /* A fixed point API. */
 #  ifdef PNG_FIXED_POINT_SUPPORTED
 #     define PNG_FIXED_EXPORT(ordinal, type, name, args)\
-         PNG_EXPORT(ordinal, type, name, args)
+         PNG_EXPORT(ordinal, type, name, args);
 #  else                   /* No fixed point APIs */
 #     define PNG_FIXED_EXPORT(ordinal, type, name, args)
 #  endif
 #endif