mongrel2 uses zeromq that needs threads
Fixes: http://autobuild.buildroot.org/results/93d/93da58453e1ca0cc491170976cfbdeb8bee5c648
Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
select BR2_PACKAGE_ZEROMQ
depends on BR2_INSTALL_LIBSTDCPP # zeromq
depends on BR2_INET_IPV6 # zeromq
+ depends on BR2_TOOLCHAIN_HAS_THREADS # zeromq
depends on BR2_LARGEFILE # zeromq -> util-linux
depends on BR2_USE_WCHAR # zeromq -> util-linux
# {get,make,swap}context functions present in