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[libpng16] Attempt to detect configuration issues with pngdeflate,

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which requires both the correct libpng and the correct zlib to function
correctly.
This commit is contained in:
John Bowler
2013-05-08 14:21:46 -05:00
committed by Glenn Randers-Pehrson
parent 34b7d62488
commit 9afb90f885
7 changed files with 30 additions and 14 deletions
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1
scripts/pnglibconf.dfa
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@@ -238,6 +238,7 @@ option ARM_NEON_CHECK disabled enables ARM_NEON
setting Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
setting Z_DEFAULT_STRATEGY default @Z_FILTERED
setting Z_DEFAULT_NOFILTER_STRATEGY default @Z_DEFAULT_STRATEGY
setting ZLIB_VERNUM default @ZLIB_VERNUM
setting TEXT_Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
setting TEXT_Z_DEFAULT_STRATEGY default @Z_DEFAULT_STRATEGY

1
scripts/pnglibconf.h.prebuilt
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@@ -202,6 +202,7 @@
#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
#define PNG_WEIGHT_SHIFT 8
#define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0 /* unknown */
#define PNG_Z_DEFAULT_COMPRESSION (-1)
#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
#define PNG_Z_DEFAULT_STRATEGY 1