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[libpng17] Port recent changes to ARM support from libpng-1.6.3beta07.

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This commit is contained in:
John Bowler
2013-06-08 14:20:46 -05:00
committed by Glenn Randers-Pehrson
parent b88c94208a
commit 34081a0e2f
9 changed files with 128 additions and 65 deletions
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9
configure.ac
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@@ -352,7 +352,7 @@ AC_ARG_ENABLE([arm-neon],
[case "$enableval" in
no|off)
# disable the default enabling on __ARM_NEON__ systems:
AC_DEFINE([PNG_ARM_NEON_NOT_SUPPORTED], [],
AC_DEFINE([PNG_ARM_NEON_OPT], [0],
[Disable ARM Neon optimizations])
# Prevent inclusion of the assembler files below:
enable_arm_neon=no;;
@@ -363,8 +363,11 @@ AC_ARG_ENABLE([arm-neon],
AC_DEFINE([PNG_ARM_NEON_API_SUPPORTED], [],
[Turn on ARM Neon optimizations at run-time]);;
yes|on)
AC_DEFINE([PNG_ARM_NEON_SUPPORTED], [],
[Enable ARM Neon optimizations]);;
AC_DEFINE([PNG_ARM_NEON_OPT], [2],
[Enable ARM Neon optimizations])
AC_MSG_WARN([--enable-arm-neon: please specify 'check' or 'api', if]
[you want the optimizations unconditionally pass -mfpu=neon]
[to the compiler.]);;
*)
AC_MSG_ERROR([--enable-arm-neon=${enable_arm_neon}: invalid value])
esac])