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[libpng16] Catch up with some recent changes that did not get merged.

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Glenn Randers-Pehrson
2013-09-30 13:56:44 -05:00
parent cc93d89e43
commit b3721757a0
4 changed files with 27 additions and 16 deletions
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7
scripts/pnglibconf.dfa
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@@ -753,6 +753,13 @@ option SAVE_UNKNOWN_CHUNKS enables READ_UNKNOWN_CHUNKS, STORE_UNKNOWN_CHUNKS
# chunks, the callback can either handle the chunk entirely itself or request
# that libpng store the chunk for later retrieval via png_get_unknown_chunks.
#
# NOTE: If STORE_UNKNOWN_CHUNKS is not enabled (which is the default if
# both SAVE_UNKNOWN_CHUNKS and WRITE_UNKNOWN_CHUNKS are disabled) then a
# 0 result from the callback will be ignored because no support for saving
# unknown chunks has been compiled in. The normal symptom is that your app
# fails to compile because png_get_unknown_chunks is no longer defined in png.h.
# If you encounter this issue simply enable STORE_UNKNOWN_CHUNKS in your build.
#
# Note that there is no 'WRITE_USER_CHUNKS' so the USER_CHUNKS option is always
# the same as READ_USER_CHUNKS at present
option READ_USER_CHUNKS requires READ, UNKNOWN_CHUNKS