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-rw-r--r--pkgs/development/compilers/llvm/7/llvm.nix8
1 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/development/compilers/llvm/7/llvm.nix b/pkgs/development/compilers/llvm/7/llvm.nix
index c56bbfd0eab9..d7fb1fe4b93f 100644
--- a/pkgs/development/compilers/llvm/7/llvm.nix
+++ b/pkgs/development/compilers/llvm/7/llvm.nix
@@ -2,7 +2,7 @@
 , fetch
 , fetchpatch
 , cmake
-, python
+, python3
 , libffi
 , libbfd
 , libpfm
@@ -48,8 +48,8 @@ in stdenv.mkDerivation ({
   outputs = [ "out" "python" ]
     ++ optional enableSharedLibraries "lib";
 
-  nativeBuildInputs = [ cmake python ]
-    ++ optional enableManpages python.pkgs.sphinx;
+  nativeBuildInputs = [ cmake python3 ]
+    ++ optional enableManpages python3.pkgs.sphinx;
 
   buildInputs = [ libxml2 libffi ]
     ++ optional enablePFM libpfm; # exegesis
@@ -141,7 +141,7 @@ in stdenv.mkDerivation ({
   '';
 
   preCheck = ''
-    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD/lib
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$PWD/lib
   '';
 
   postInstall = ''