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[libpng15] Make ARM NEON support work at compile time (not just configure time).

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This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when
using a compiler that compiles for multiple architectures at one time.
This commit is contained in:
Glenn Randers-Pehrson
2013-06-06 14:46:38 -05:00
parent fd03dddd78
commit ea216228f3
4 changed files with 37 additions and 6 deletions
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5
configure.ac
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@@ -179,11 +179,12 @@ AC_ARG_ENABLE([arm-neon],
[Enable ARM NEON optimizations: =no/off, check, api, yes/on:]
[no/off: disable the optimizations; check: use internal checking code]
[(deprecated and poorly supported); api: disable by default, enable by]
[a call to png_set_option; yes/on: turn on unconditionally.]),
[a call to png_set_option; yes/on: turn on unconditionally.]
[If not specified: determined by the compiler.]),
[case "$enableval" in
no|off)
# disable the default enabling on __ARM_NEON__ systems:
AC_DEFINE([PNG_NO_ARM_NEON], [],
AC_DEFINE([PNG_ARM_NEON_NOT_SUPPORTED], [],
[Disable ARM Neon optimizations])
# Prevent inclusion of the assembler files below:
enable_arm_neon=no;;