haskell lib: Make Cabal compiler names explicit

Cabal2nix expects a --compiler flag that contains a Cabal Compiler description.
We used to use the compiler's derivation name for this, but this breaks when
cross-compiling due to the target suffix. Instead we add an explicit
haskellCompilerName attribute to Haskell compiler derivations.

pkgs/development/compilers/ghc/6.10.2-binary.nix

@@ -96,7 +96,11 @@ stdenv.mkDerivation rec {
     [ $(./main) == "yes" ]
   '';
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/6.10.4.nix

@@ -25,7 +25,12 @@ stdenv.mkDerivation rec {
 
   NIX_CFLAGS_COMPILE = "-fomit-frame-pointer";
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/6.12.3.nix

@@ -36,7 +36,12 @@ stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags=["-S" "--keep-file-symbols"];
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/7.0.4-binary.nix

@@ -134,7 +134,12 @@ stdenv.mkDerivation rec {
     [ $(./main) == "yes" ]
   '';
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta.license = stdenv.lib.licenses.bsd3;
   meta.platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin"];

pkgs/development/compilers/ghc/7.0.4.nix

@@ -45,7 +45,12 @@ stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags=["-S" "--keep-file-symbols"];
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/7.10.3.nix

@@ -169,6 +169,9 @@ stdenv.mkDerivation rec {
     inherit bootPkgs targetPrefix;
 
     inherit llvmPackages;
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
   };
 
   meta = {

pkgs/development/compilers/ghc/7.2.2.nix

@@ -55,7 +55,12 @@ stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags=["-S" "--keep-file-symbols"];
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPprefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/7.4.2-binary.nix

@@ -136,7 +136,12 @@ stdenv.mkDerivation rec {
     [ $(./main) == "yes" ]
   '';
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta.license = stdenv.lib.licenses.bsd3;
   meta.platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin"];

pkgs/development/compilers/ghc/7.4.2.nix

@@ -56,7 +56,12 @@ stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags = [ "-S" ] ++ stdenv.lib.optional (!stdenv.isDarwin) "--keep-file-symbols";
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/7.6.3.nix

@@ -82,7 +82,12 @@ in stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags = [ "-S" ] ++ stdenv.lib.optional (!stdenv.isDarwin) "--keep-file-symbols";
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/7.8.4.nix

@@ -74,7 +74,12 @@ stdenv.mkDerivation rec {
   # that in turn causes GHCi to abort
   stripDebugFlags = [ "-S" ] ++ stdenv.lib.optional (!stdenv.isDarwin) "--keep-file-symbols";
 
-  passthru = { targetPrefix = ""; };
+  passthru = {
+    targetPrefix = "";
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
+  };
 
   meta = {
     homepage = http://haskell.org/ghc;

pkgs/development/compilers/ghc/8.0.2.nix

@@ -170,6 +170,9 @@ stdenv.mkDerivation rec {
     inherit bootPkgs targetPrefix;
 
     inherit llvmPackages;
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
   };
 
   meta = {

pkgs/development/compilers/ghc/8.2.2.nix

@@ -181,6 +181,9 @@ stdenv.mkDerivation rec {
     inherit bootPkgs targetPrefix;
 
     inherit llvmPackages;
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
   };
 
   meta = {

pkgs/development/compilers/ghc/8.4.1.nix

@@ -178,6 +178,9 @@ stdenv.mkDerivation rec {
     inherit bootPkgs targetPrefix;
 
     inherit llvmPackages;
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
   };
 
   meta = {

pkgs/development/compilers/ghc/head.nix

@@ -178,6 +178,9 @@ stdenv.mkDerivation rec {
     inherit bootPkgs targetPrefix;
 
     inherit llvmPackages;
+
+    # Our Cabal compiler name
+    haskellCompilerName = "ghc";
   };
 
   meta = {