Fix ghc-7.4

SetupCompat.hs

@@ -102,3 +102,12 @@ setComponentsConfigs
 setComponentsConfigs lbi cs = lbi { componentsConfigs = cs }
 
 #endif
+
+
+#if __GLASGOW_HASKELL__ <= 704
+
+componentBuildInfo :: Component -> BuildInfo
+componentBuildInfo =
+  foldComponent libBuildInfo buildInfo testBuildInfo benchmarkBuildInfo
+
+#endif

ghc-mod.cabal

@@ -26,6 +26,7 @@ Data-Files:             Makefile ghc.el ghc-func.el ghc-doc.el ghc-comp.el
                         ghc-check.el ghc-process.el ghc-command.el ghc-info.el
                         ghc-ins-mod.el ghc-indent.el ghc-pkg.el ghc-rewrite.el
 Extra-Source-Files:     ChangeLog
+                        SetupCompat.hs
 			test/data/*.cabal
                         test/data/*.hs
                         test/data/cabal.sandbox.config.in
@@ -218,6 +219,8 @@ Test-Suite spec
                         TestUtils
 
   Build-Depends:        hspec
+  if impl(ghc == 7.4.*)
+    Build-Depends:     executable-path
   X-Build-Depends-Like: CLibName