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[libpng16] Ensure that NEON filter stuff is completely disabled when

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switched 'off'.  Previously the ARM NEON specific files were still built
if the option was switched 'off' as opposed to being explicitly disabled.
This commit is contained in:
John Bowler 2013-04-23 18:18:45 -05:00 committed by Glenn Randers-Pehrson
parent 0d50d6562c
commit a74b70871c
3 changed files with 13 additions and 4 deletions
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5
ANNOUNCE
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@ -51,7 +51,10 @@ Version 1.6.2rc03 [April 22, 2013]
Trivial spelling cleanup.
Version 1.6.2rc04 [April 23, 2013]
Revised stack marking in arm/filter_neon.S
Revised stack marking in arm/filter_neon.S and configure.ac
Ensure that NEON filter stuff is completely disabled when switched 'off'.
Previously the ARM NEON specific files were still built if the option
was switched 'off' as opposed to being explicitly disabled.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

5
CHANGES
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@ -4498,7 +4498,10 @@ Version 1.6.2rc03 [April 22, 2013]
Trivial spelling cleanup.
Version 1.6.2rc04 [April 23, 2013]
Revised stack marking in arm/filter_neon.S
Revised stack marking in arm/filter_neon.S and configure.ac
Ensure that NEON filter stuff is completely disabled when switched 'off'.
Previously the ARM NEON specific files were still built if the option
was switched 'off' as opposed to being explicitly disabled.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

7
configure.ac
View File

@ -240,9 +240,12 @@ AC_ARG_ENABLE([arm-neon],
[a call to png_set_option; on: turn on unconditionally. The]
[default is 'on' if __ARM_NEON__ is defined, otherwise 'off'.]),
[case "$enableval" in
off)
no|off)
# disable the default enabling on __ARM_NEON__ systems:
AC_DEFINE([PNG_NO_ARM_NEON], [],
[Disable ARM Neon optimizations]);;
[Disable ARM Neon optimizations])
# Prevent use of the assembler files below:
enable_arm_neon=no;;
check)
AC_DEFINE([PNG_ARM_NEON_CHECK_SUPPORTED], [],
[Check for ARM Neon support at run-time]);;