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[libpng16] Added #ifdef PNG_READ_SUPPORTED/endif around the

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png_chunk_unknown_handling() function, and restored the unknown-chunk
handling code from libpng-1.6.6.

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Glenn R-P
This commit is contained in:
Glenn Randers-Pehrson
2013-09-20 15:40:15 -05:00
parent 873f16fe2f
commit 6f8f004fe1
5 changed files with 13 additions and 15 deletions
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6
pngpriv.h
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@@ -1431,15 +1431,13 @@ PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr,
* just skips the chunk or errors out if it is critical.
*/
#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
PNG_INTERNAL_FUNCTION(int,png_chunk_unknown_handling,
(png_const_structrp png_ptr, png_uint_32 chunk_name),PNG_EMPTY);
/* Exactly as the API png_handle_as_unknown() except that the argument is a
* 32-bit chunk name, not a string.
*/
#endif
#endif /* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */
#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */
#endif /* PNG_READ_SUPPORTED */
/* Handle the transformations for reading and writing */