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[libpng16] Updated comment in pngpriv.h about ARM support.

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Glenn Randers-Pehrson 2015-04-29 11:30:35 -05:00
parent e0f0d05938
commit 216ab04994
1 changed files with 6 additions and 2 deletions
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8
pngpriv.h
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@ -118,8 +118,12 @@
* to compile with an appropriate #error if ALIGNED_MEMORY has been turned * to compile with an appropriate #error if ALIGNED_MEMORY has been turned
* off. * off.
* *
* Note that gcc-4.9 defines __ARM_NEON instead of __ARM_NEON__, so we * Note that gcc-4.9 defines __ARM_NEON instead of the deprecated
* check both variants. * __ARM_NEON__, so we check both variants.
*
* To disable ARM_NEON optimizations entirely, and skip compiling the
* associated assembler code, pass --enable-arm-neon=no to configure
* or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
*/ */
# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \ # if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED) defined(PNG_ALIGNED_MEMORY_SUPPORTED)