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-rw-r--r--nixpkgs/pkgs/development/compilers/llvm/rocm/llvm/default.nix5
1 files changed, 3 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/development/compilers/llvm/rocm/llvm/default.nix b/nixpkgs/pkgs/development/compilers/llvm/rocm/llvm/default.nix
index 129cc69bf6dc..724fd6b63f76 100644
--- a/nixpkgs/pkgs/development/compilers/llvm/rocm/llvm/default.nix
+++ b/nixpkgs/pkgs/development/compilers/llvm/rocm/llvm/default.nix
@@ -3,6 +3,7 @@
 , fetchFromGitHub
 , writeScript
 , cmake
+, ninja
 , python3
 , libxml2
 , libffi
@@ -30,7 +31,7 @@ in stdenv.mkDerivation rec {
   outputs = [ "out" "python" ]
     ++ lib.optional enableSharedLibraries "lib";
 
-  nativeBuildInputs = [ cmake python3 ];
+  nativeBuildInputs = [ cmake ninja python3 ];
 
   buildInputs = [ libxml2 libffi ];
 
@@ -74,7 +75,7 @@ in stdenv.mkDerivation rec {
   '';
 
   preCheck = ''
-    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD/lib
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$PWD/lib
   '';
 
   postInstall = ''