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package/vlc: use BR2_TOOLCHAIN_HAS_LIBATOMIC

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While fixing
http://autobuild.buildroot.net/results/d95/d9572bcafc1776eebe88bbcaf031a05cd6ee4b23/
by using http://patchwork.ozlabs.org/patch/674337/ the build stopped at
a later stage with

/home/buildroot/br4/output/build/vlc-2.2.4/src/.libs/libvlccore.so: undefined reference to `__atomic_fetch_add_4'
/home/buildroot/br4/output/build/vlc-2.2.4/src/.libs/libvlccore.so: undefined reference to `__atomic_fetch_sub_4'
/home/buildroot/br4/output/build/vlc-2.2.4/src/.libs/libvlccore.so: undefined reference to `__atomic_fetch_or_1'
/home/buildroot/br4/output/build/vlc-2.2.4/src/.libs/libvlccore.so: undefined reference to `__atomic_compare_exchange_4'
/home/buildroot/br4/output/build/vlc-2.2.4/src/.libs/libvlccore.so: undefined reference to `__atomic_exchange_1'
collect2: error: ld returned 1 exit status

so libatomic must be pulled in if necessary.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Bernd Kuhls 2016-10-16 23:01:27 +02:00 committed by Thomas Petazzoni
parent 70dbd3227d
commit 03f6e005e6
1 changed files with 5 additions and 0 deletions
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5
package/vlc/vlc.mk
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@ -56,6 +56,11 @@ VLC_CONF_OPTS += \
--disable-addonmanagermodules \
--enable-run-as-root \
# Uses __atomic_fetch_add_4
ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
VLC_CONF_ENV += LIBS="-latomic"
endif
# Building static and shared doesn't work, so force static off.
ifeq ($(BR2_STATIC_LIBS),)
VLC_CONF_OPTS += --disable-static