1 files changed, 15 insertions, 6 deletions

diff --git a/dht/dht-client.cabal b/dht/dht-client.cabal
index 0da181df..6a449a6a 100644
--- a/dht/dht-client.cabal
+++ b/dht/dht-client.cabal
@@ -27,6 +27,10 @@ description:
 extra-source-files:    ChangeLog
                        cbits/*.h
 
+flag avahi
+  description:         Advertise Tox node on avahi.
+                       Disable to avoid an indirect dependency on lens.
+  default:             True
 
 flag network-uri
   description:         Use network-uri package.
@@ -207,7 +211,6 @@ library
                     , blaze-builder
                     , exceptions
                     , hinotify
-                    , avahi >= 0.2.0
                     , dput-hslogger
                     , word64-map
                     , network-addr
@@ -223,6 +226,9 @@ library
   if impl(ghc < 8)
       Build-depends:  transformers
 
+  if flag(avahi)
+      Build-depends:  avahi >= 0.2.0
+
   if flag(no-constraint-extras)
     build-depends:    dependent-sum < 0.6
   else
@@ -282,11 +288,14 @@ library
         build-depends: cryptonite >= 0.22
 
 executable avahi
-  hs-source-dirs:      examples
-  main-is:             avahi.hs
-  default-language:    Haskell2010
-  build-depends:       base-prelude, dht-client, avahi, network
-  ghc-options:         -fobject-code
+      hs-source-dirs:      examples
+      main-is:             avahi.hs
+  if flag(avahi)
+      default-language:    Haskell2010
+      build-depends:       base-prelude, dht-client, avahi, network
+      ghc-options:         -fobject-code
+  else
+      buildable: False
 
 executable dht
   hs-source-dirs:      examples