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package/ogre: link with libatomic when needed

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On some architectures, atomic binutils are provided by the libatomic
library from gcc. Linking with libatomic is therefore necessary,
otherwise the build fails with:

/home/test/autobuild/run/instance-1/output-1/host/lib/gcc/xtensa-buildroot-linux-uclibc/8.3.0/../../../../xtensa-buildroot-linux-uclibc/bin/ld: ../../lib/libOgreMain.so.1.12.0: undefined reference to `__atomic_fetch_add_8'

This is often for example the case on sparc v8 32 bits.

Fixes:
 - http://autobuild.buildroot.org/results/3a09e2d1d26b19243244eb7f9235c85488a788d2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Fabrice Fontaine 2020-02-10 18:41:27 +01:00 committed by Peter Korsgaard
parent 274d586060
commit bc88757481
1 changed files with 5 additions and 0 deletions
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5
package/ogre/ogre.mk
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@ -39,4 +39,9 @@ else
OGRE_CONF_OPTS += -DOGRE_BUILD_COMPONENT_PYTHON=OFF
endif
# Uses __atomic_fetch_add_8
ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
OGRE_CONF_OPTS += -DCMAKE_CXX_FLAGS="$(TARGET_CXXFLAGS) -latomic"
endif
$(eval $(cmake-package))