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181aa56d71
Since libpng-1.6.41 support for PNG_IGNORE_ADLER32 is optional, disabled by default owing to its use of an undocumented zlib function, and not presently enabled in Gentoo. Funnily enough there are *two* places in pngcrush code where this option is used and one of them has already used an ifdef guard. Closes: https://bugs.gentoo.org/923023 Signed-off-by: Marek Szuba <marecki@gentoo.org>
13 lines
486 B
Diff
13 lines
486 B
Diff
--- a/pngcrush.c
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+++ b/pngcrush.c
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@@ -5520,8 +5520,10 @@
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* they were already checked in the pngcrush_measure_idat
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* function
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*/
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+# ifdef PNG_IGNORE_ADLER32
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png_set_option(read_ptr, PNG_IGNORE_ADLER32,
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PNG_OPTION_ON);
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+# endif
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png_set_crc_action(read_ptr, PNG_CRC_QUIET_USE,
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PNG_CRC_QUIET_USE);
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}
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