···

       
507
       
507
       
 
       
  # LLVM input that llvm-ffi declares.

     

       
508
       
508
       
 
       
  llvm-ffi =

     

       
509
       
509
       
 
       
    let

     

       
510
       
510
       
-
       
      chosenLlvmVersion = 20;

     

       
511
       
511
       
-
       
      nextLlvmAttr = "llvmPackages_${toString (chosenLlvmVersion + 1)}";

     

       
512
       
512
       
-
       
      shouldUpgrade =

     

       
513
       
513
       
-
       
        pkgs ? ${nextLlvmAttr} && (lib.strings.match ".+rc.+" pkgs.${nextLlvmAttr}.llvm.version) == null;

     

       
510
       
510
       
+
       
      currentDefaultVersion = lib.versions.major pkgs.llvmPackages.llvm.version;

     

       
511
       
511
       
+
       
      latestSupportedVersion = lib.versions.major super.llvm-ffi.version;

     

       
514
       
512
       
 
       
    in

     

       
515
       
515
       
-
       
    lib.warnIf shouldUpgrade

     

       
516
       
516
       
-
       
      "haskellPackages.llvm-ffi: ${nextLlvmAttr} is available in Nixpkgs, consider updating."

     

       
517
       
517
       
-
       
      lib.pipe

     

       
518
       
518
       
-
       
      super.llvm-ffi

     

       
513
       
513
       
+
       
    lib.pipe super.llvm-ffi (

     

       
519
       
514
       
 
       
      [

     

       
520
       
520
       
-
       
        # ATTN: There is no matching flag for the latest supported LLVM version,

     

       
521
       
521
       
-
       
        # so you may need to remove this when updating chosenLlvmVersion

     

       
522
       
522
       
-
       
        (enableCabalFlag "LLVM${toString chosenLlvmVersion}00")

     

       
523
       
515
       
 
       
        (addBuildDepends [

     

       
524
       
524
       
-
       
          pkgs."llvmPackages_${toString chosenLlvmVersion}".llvm.lib

     

       
525
       
525
       
-
       
          pkgs."llvmPackages_${toString chosenLlvmVersion}".llvm.dev

     

       
516
       
516
       
+
       
          pkgs.llvmPackages.llvm.lib

     

       
517
       
517
       
+
       
          pkgs.llvmPackages.llvm.dev

     

       
526
       
518
       
 
       
        ])

     

       
527
       
527
       
-
       
      ];

     

       
519
       
519
       
+
       
      ]

     

       
520
       
520
       
+
       
      # There is no matching flag for the latest supported LLVM version.

     

       
521
       
521
       
+
       
      ++ lib.optional (currentDefaultVersion != latestSupportedVersion) (

     

       
522
       
522
       
+
       
        enableCabalFlag "LLVM${currentDefaultVersion}00"

     

       
523
       
523
       
+
       
      )

     

       
524
       
524
       
+
       
    );

     

       
528
       
525
       
 
       


     

       
529
       
526
       
 
       
  # Needs help finding LLVM.

     

       
530
       
527
       
 
       
  spaceprobe = addBuildTool self.buildHaskellPackages.llvmPackages.llvm super.spaceprobe;