Fixed backwards compatability with older compilers.

bitnomial · Jul 30, 2018 · 3ad9af1 · 3ad9af1
1 parent 0a77531
commit 3ad9af1
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Showing 3 changed files with 10 additions and 4 deletions.
diff --git a/prometheus.cabal b/prometheus.cabal
@@ -1,5 +1,5 @@
 name:                prometheus
-version:             2.0.1
+version:             2.0.2
 synopsis:            Prometheus Haskell Client
 homepage:            http://github.com/bitnomial/prometheus
 bug-reports:         http://github.com/bitnomial/prometheus/issues
@@ -18,7 +18,8 @@ description:
   A simple and modern, type safe, idiomatic Haskell client for
   <http://prometheus.io Prometheus> monitoring. Specifically there is no
   use of unsafe IO or manual ByteString construction from lists of
-  bytes. Batteries-included web server.
+  bytes. Batteries-included web server. Version 0.* supports Prometheus v1.0
+  and version 2.* supports Prometheus v2.0.
   .
   [Usage Example]
   .

diff --git a/src/System/Metrics/Prometheus/MetricId.hs b/src/System/Metrics/Prometheus/MetricId.hs
@@ -4,8 +4,8 @@ module System.Metrics.Prometheus.MetricId where
 
 import           Data.Map       (Map)
 import qualified Data.Map       as Map
-import           Data.Monoid    ()
-import           Data.Semigroup ()
+import           Data.Monoid    (Monoid)
+import           Data.Semigroup (Semigroup)
 import           Data.String    (IsString)
 import           Data.Text      (Text)
 import           Prelude        hiding (null)

diff --git a/stack-8.2.yaml b/stack-8.2.yaml
@@ -0,0 +1,5 @@
+resolver: lts-11.19
+flags: {}
+packages:
+  - location: '.'
+extra-deps: []