044752f563
redis-plus-plus unconditonally uses mutex and so needs threads since its addition in commitc46df9de21and https://github.com/sewenew/redis-plus-plus/commit/1fa8f6bbfb24c8f328aa23ee1dd3c3f99c1b4caf: In file included from /home/autobuild/autobuild/instance-5/output-1/build/redis-plus-plus-1.3.10/src/sw/redis++/connection_pool.h:27, from /home/autobuild/autobuild/instance-5/output-1/build/redis-plus-plus-1.3.10/src/sw/redis++/connection_pool.cpp:17: /home/autobuild/autobuild/instance-5/output-1/build/redis-plus-plus-1.3.10/src/sw/redis++/sentinel.h:95:10: error: 'mutex' in namespace 'std' does not name a type 95 | std::mutex _mutex; | ^~~~~ Fixes:c46df9de21- http://autobuild.buildroot.org/results/cc4c54134e8a522b4c028aab4266f47cf862e2a9 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>