[libpng16] Removed non-working ICC profile support code. There was too much

code for too little gain; implementing full ICC color correction is maybe
desireable but is left up to applications.

scripts/pnglibconf.dfa

@@ -151,7 +151,7 @@ logunsupported = 1
 # These are currently experimental features; define them if you want (NOTE:
 # experimental options must be disabled before they are defined in this file!)
 
-option ICC disabled
+# NONE
 
 # Note that PNG_USR_CONFIG only has an effect when building
 # pnglibconf.h
@@ -318,20 +318,6 @@ setting USER_CHUNK_MALLOC_MAX
 option SAFE_LIMITS enables USER_LIMITS disabled
 = SAFE_LIMITS SAFE_LIMITS
 
-# ICC profile support; basic ICC profile support is enabled if iCCP chunk read
-# or write is enabled.  The application must perform all iCCP profile handling
-# itself.  If full support is enabled with the option below libpng will attempt
-# to do more processing using the profile data itself, this includes setting
-# appropriate values for cHRM and gAMA chunks if not present in the stream.
-#
-# ICC profile support is not build in to core libpng because of the size of the
-# code required; an external ICC implementation must be passed to libpng to
-# enable it.
-#
-# WARNING: this option is CURRENTLY UNTESTED because a test CMS implementation
-# has not yet been written, as a result it is disabled in current beta builds.
-option ICC requires iCCP enables SAVE_INT_32
-
 # All of the following options relate to code capabilities for
 # processing image data before creating a PNG or after reading one.
 # You can remove these capabilities safely and still be PNG

scripts/pnglibconf.h.prebuilt

@@ -3,7 +3,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng 1.6.0beta31 - October 26, 2012 */
+/* Libpng 1.6.0beta31 - November 1, 2012 */
 
 /* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
 
@@ -63,7 +63,6 @@
 #define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
 #define PNG_hIST_SUPPORTED
 #define PNG_iCCP_SUPPORTED
-/*#undef PNG_ICC_SUPPORTED*/
 #define PNG_INCH_CONVERSIONS_SUPPORTED
 #define PNG_INFO_IMAGE_SUPPORTED
 #define PNG_IO_STATE_SUPPORTED

scripts/symbols.def

@@ -247,5 +247,3 @@ EXPORTS
  png_image_write_to_stdio @240
  png_convert_to_rfc1123_buffer @241
  png_set_check_for_invalid_index @242
- png_set_cms @243
- png_set_cms_output @244

scripts/symbols.dfn

@@ -42,7 +42,6 @@
 #define PNG_READ_BIG_ENDIAN_SUPPORTED  /* should do nothing! */
 #define PNG_INCH_CONVERSIONS_SUPPORTED
 #define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-#define PNG_ICC_SUPPORTED /* currently disabled */
 
 #undef PNG_H
 #include "../png.h"