Fix build of proto-lens-0.3.* on lts-12.

Also update `stack.yaml` to `lts-12.6` rather than a nightly.

The proto-lens-protoc-0.3.1.1 release had an upper bound
on `temporary` that was too restrictive.  Increase it,
and bump the version to `0.3.1.2`.

.travis.yml

@@ -23,9 +23,9 @@ matrix:
     addons: {apt: {packages: [libgmp-dev]}}
   - env: BUILD=stack STACK='stack --resolver=lts-9.6'
     addons: {apt: {packages: [libgmp-dev]}}
-  - env: BUILD=stack STACK=stack # Use the resolver in stack.yaml
+  - env: BUILD=stack STACK=stack --resolver=11.22'
     addons: {apt: {packages: [libgmp-dev]}}
-  - env: BUILD=stack STACK='stack --resolver=nightly-2018-05-04'
+  - env: BUILD=stack STACK='stack'  # Use the resolver in stack.yaml
     addons: {apt: {packages: [libgmp-dev]}}
 
 before_install:

proto-lens-protoc/Changelog.md

@@ -1,5 +1,8 @@
 # Changelog for `proto-lens-protoc`
 
+## v0.3.1.2
+- Bump the upper bound to `temporary-1.3`.
+
 ## v0.3.1.1
 - Fix management of generated files between Cabal components (#171).
 - Bump the lower bound on `base` to indicate we require `ghc>=8.0`.

proto-lens-protoc/package.yaml

@@ -37,7 +37,7 @@ library:
     - lens-labels == 0.2.*
     - pretty == 1.1.*
     - process >= 1.2 && < 1.7
-    - temporary == 1.2.*
+    - temporary >= 1.2 && < 1.4
   exposed-modules:
     - Data.ProtoLens.Compiler.Combinators
     - Data.ProtoLens.Compiler.Definitions

stack.yaml

@@ -1,4 +1,4 @@
-resolver: lts-11.7
+resolver: lts-12.7
 packages:
 - discrimination-ieee754
 - lens-labels