[Buildroot] [PATCH v2 2/2] zeromq: depend on libsodium if available

[Frank Hunleth]

ZeroMQ doesn't require libsodium, but will enable CURVE security if it's
available. This patch adds the optional dependency.

Signed-off-by: Frank Hunleth <fhunleth at troodon-software.com>
---
 package/zeromq/zeromq.mk | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/package/zeromq/zeromq.mk b/package/zeromq/zeromq.mk
index 7e9ed19..a876d5e 100644
--- a/package/zeromq/zeromq.mk
+++ b/package/zeromq/zeromq.mk
@@ -34,4 +34,10 @@ ZEROMQ_DEPENDENCIES += host-pkgconf openpgm
 ZEROMQ_CONF_OPTS += --with-system-pgm
 endif
 
+# ZeroMQ uses libsodium if it's available.
+ifeq ($(BR2_PACKAGE_LIBSODIUM), y)
+ZEROMQ_DEPENDENCIES += libsodium
+ZEROMQ_CONF_OPTS += --with-libsodium="$(STAGING_DIR)/usr"
+endif
+
 $(eval $(autotools-package))
-- 
2.1.4