Merge pull request #32 from hvr/pr/base413

Prepare for upcoming base-4.13/ghc-8.8

.travis.yml

-env:
- - GHCVER=7.0.1
- - GHCVER=7.0.2
- - GHCVER=7.0.3
- - GHCVER=7.0.4
- - GHCVER=7.2.1
- - GHCVER=7.2.2
- - GHCVER=7.4.1
- - GHCVER=7.4.2
- - GHCVER=7.6.1
- - GHCVER=7.6.2
- - GHCVER=7.6.3
- - GHCVER=head
+# simplified haskell-ci Travis setup
+# see also https://github.com/haskell-CI/haskell-ci
 
-matrix:
-  allow_failures:
-    - env: GHCVER=head
+language: haskell
+sudo: enabled
 
-before_install:
- - sudo add-apt-repository -y ppa:hvr/ghc
- - sudo apt-get update
- - sudo apt-get install cabal-install-1.18 ghc-$GHCVER autoconf
- - export PATH=/opt/ghc/$GHCVER/bin:$PATH
+cache:
+  directories:
+   - $HOME/.cabal/store
+
+cabal: 2.4
+ghc:
+  - "8.6.3"
+  - "8.4.4"
+  - "8.2.2"
+  - "8.0.2"
 
 install:
- - cabal-1.18 update
+ - cabal --version
  - ghc --version
 
 script:
  - autoreconf -i
- - cabal-1.18 configure -v2
- - cabal-1.18 build
- - cabal-1.18 check
- - cabal-1.18 sdist
-# The following scriptlet checks that the resulting source distribution can be built & installed
- - export SRC_TGZ=$(cabal-1.18 info . | awk '{print $2 ".tar.gz";exit}') ;
-   cd dist/;
-   if [ -f "$SRC_TGZ" ]; then
-      cabal-1.18 install "$SRC_TGZ";
-   else
-      echo "expected '$SRC_TGZ' not found";
-      exit 1;
-   fi
-
+ - cabal v2-update
+ - cabal v2-build all
+ - cabal check 
+ - cabal v2-sdist
+ - cd dist-newstyle/sdist/ && cabal v1-install terminfo-*.tar.gz

System/Console/Terminfo/Base.hs

@@ -45,7 +45,7 @@ module System.Console.Terminfo.Base(
 
 import Control.Applicative
 import Control.Monad
-import Data.Semigroup (Semigroup(..))
+import Data.Semigroup as Sem (Semigroup(..))
 import Foreign.C
 import Foreign.ForeignPtr
 import Foreign.Ptr
@@ -138,7 +138,7 @@ newtype TermOutput = TermOutput ([TermOutputType] -> [TermOutputType])
 data TermOutputType = TOCmd LinesAffected String
                     | TOStr String
 
-instance Semigroup TermOutput where
+instance Sem.Semigroup TermOutput where
     TermOutput xs <> TermOutput ys = TermOutput (xs . ys)
 
 instance Monoid TermOutput where

terminfo.cabal

@@ -28,7 +28,7 @@ Library
     other-extensions: CPP, DeriveDataTypeable, FlexibleInstances, ScopedTypeVariables
     if impl(ghc>=7.3)
       other-extensions: Safe, Trustworthy
-    build-depends:    base >= 4.9 && < 4.13
+    build-depends:    base >= 4.9 && < 4.14
     ghc-options:      -Wall
     exposed-modules:
                     System.Console.Terminfo