Merge pull request #3235 from erikd/master

Add current pkg info to generated `cabal_macros.h` file

Cabal/Distribution/Simple/Build/Macros.hs

@@ -29,7 +29,7 @@ import Distribution.Package
 import Distribution.Version
          ( Version(versionBranch) )
 import Distribution.PackageDescription
-         ( PackageDescription )
+         ( PackageDescription ( package ) )
 import Distribution.Simple.LocalBuildInfo
          ( LocalBuildInfo(withPrograms), externalPackageDeps
          , localComponentId, localCompatPackageKey )
@@ -47,9 +47,10 @@ import Distribution.Text
 -- | The contents of the @cabal_macros.h@ for the given configured package.
 --
 generate :: PackageDescription -> LocalBuildInfo -> String
-generate _pkg_descr lbi =
+generate pkg_descr lbi =
   "/* DO NOT EDIT: This file is automatically generated by Cabal */\n\n" ++
-  generatePackageVersionMacros (map snd (externalPackageDeps lbi)) ++
+  generatePackageVersionMacros
+    (package pkg_descr : map snd (externalPackageDeps lbi)) ++
   generateToolVersionMacros (configuredPrograms . withPrograms $ lbi) ++
   generateComponentIdMacro lbi