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libarchive: fix build error when linking with lzma

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Build fails when linking with liblzma compiled without threads support.

./.libs/libarchive.so: undefined reference to `lzma_cputhreads'
./.libs/libarchive.so: undefined reference to `lzma_stream_encoder_mt'

So let's enable LZMA only when toolchain has threads support.

Fixes:
http://autobuild.buildroot.org/results/2cb7f8a056982d0b894d0e2531ef357e74c8b796
http://autobuild.buildroot.org/results/d12954fbd460d396f255158fa127f39ff9d2be8d
http://autobuild.buildroot.org/results/abe10c70f38423a212ab27d7d27e22174eaa5aab
Many more...

Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Sergio Prado 2016-07-21 11:10:26 -03:00 committed by Thomas Petazzoni
parent 4cf4080087
commit 985543fcfe
1 changed files with 2 additions and 1 deletions
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3
package/libarchive/libarchive.mk
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@ -92,7 +92,8 @@ else
LIBARCHIVE_CONF_OPTS += --without-zlib
endif
ifeq ($(BR2_PACKAGE_XZ),y)
# libarchive requires LZMA with thread support in the toolchain
ifeq ($(BR2_TOOLCHAIN_HAS_THREADS)$(BR2_PACKAGE_XZ),yy)
LIBARCHIVE_DEPENDENCIES += xz
LIBARCHIVE_CONF_OPTS += --with-lzma
else