pkgs/cscript: Use CC and LLDB from nixpkgs

1 files changed, 12 insertions, 0 deletions

diff --git a/pkgs/cscript/default.nix b/pkgs/cscript/default.nix
index 602bbe7..fa529bc 100644
--- a/pkgs/cscript/default.nix
+++ b/pkgs/cscript/default.nix
@@ -2,6 +2,7 @@
   stdenv,
   lib,
   fetchFromGitHub,
+  llvmPackages,
 }: let
   self = stdenv.mkDerivation rec {
     pname = "cscript";
@@ -14,6 +15,17 @@
       hash = "sha256-d722f3K3QXnPqDVNVGBK+mj6Bl1VNShmJ4WICj0p64s=";
     };
 
+    # Instead of using the system CC and LLDB (impure), use the most recent LLVM release.
+    postPatch = let
+      toStringLiteral = lib.flip lib.pipe [builtins.toJSON lib.strings.escapeShellArg];
+      ccPathLiteral = toStringLiteral "${llvmPackages.clang}/bin/clang";
+      lldbPathLiteral = toStringLiteral "${llvmPackages.lldb}/bin/lldb";
+    in ''
+      substituteInPlace cscript.c \
+        --replace-fail '"cc"' ${ccPathLiteral} \
+        --replace-fail '"lldb"' ${lldbPathLiteral} \
+    '';
+
     preInstall = "mkdir -p $out/bin";
     makeFlags = ["INSTALL=$(out)/bin"];