When xz was compiled before, links will use it as optional dependency:
$ output/host/usr/bin/i586-buildroot-linux-uclibc-readelf -a output/target/usr/bin/links | grep NEEDED
0x00000001 (NEEDED) Shared library: [liblzma.so.5]
0x00000001 (NEEDED) Shared library: [libbz2.so.1.0]
0x00000001 (NEEDED) Shared library: [libz.so.1]
0x00000001 (NEEDED) Shared library: [libevent-2.0.so.5]
0x00000001 (NEEDED) Shared library: [libc.so.1]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
LINKS_DEPENDENCIES += openssl
endif
+ifeq ($(BR2_PACKAGE_XZ),y)
+LINKS_DEPENDENCIES += xz
+endif
+
ifeq ($(BR2_PACKAGE_ZLIB),y)
LINKS_DEPENDENCIES += zlib
endif