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diff --git a/configure.ac b/configure.ac
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index 4fb0778..930bf50 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -283,17 +283,21 @@ AC_ARG_ENABLE([arm-neon],
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[case "$enableval" in
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01e100 |
no|off)
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# disable the default enabling on __ARM_NEON__ systems:
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+ AC_DEFINE([PNG_ARM_NEON], [], [ARM NEON support])
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AC_DEFINE([PNG_ARM_NEON_OPT], [0],
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[Disable ARM Neon optimizations])
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# Prevent inclusion of the assembler files below:
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enable_arm_neon=no;;
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01e100 |
check)
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+ AC_DEFINE([PNG_ARM_NEON], [], [ARM NEON support])
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AC_DEFINE([PNG_ARM_NEON_CHECK_SUPPORTED], [],
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[Check for ARM Neon support at run-time]);;
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01e100 |
api)
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+ AC_DEFINE([PNG_ARM_NEON], [], [ARM NEON support])
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AC_DEFINE([PNG_ARM_NEON_API_SUPPORTED], [],
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[Turn on ARM Neon optimizations at run-time]);;
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01e100 |
yes|on)
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+ AC_DEFINE([PNG_ARM_NEON], [], [ARM NEON support])
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AC_DEFINE([PNG_ARM_NEON_OPT], [2],
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[Enable ARM Neon optimizations])
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AC_MSG_WARN([--enable-arm-neon: please specify 'check' or 'api', if]
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01e100 |
diff --git a/pngpriv.h b/pngpriv.h
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index 1997503..789206f 100644
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--- a/pngpriv.h
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+++ b/pngpriv.h
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@@ -125,7 +125,7 @@
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* associated assembler code, pass --enable-arm-neon=no to configure
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* or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
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*/
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-# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
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+# if defined(PNG_ARM_NEON) && (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
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defined(PNG_ALIGNED_MEMORY_SUPPORTED)
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01e100 |
# define PNG_ARM_NEON_OPT 2
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# else
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