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-rw-r--r--nixpkgs/pkgs/development/compilers/llvm/11/llvm/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/compilers/llvm/11/llvm/default.nix b/nixpkgs/pkgs/development/compilers/llvm/11/llvm/default.nix
index 01e6483ad640..423b08396666 100644
--- a/nixpkgs/pkgs/development/compilers/llvm/11/llvm/default.nix
+++ b/nixpkgs/pkgs/development/compilers/llvm/11/llvm/default.nix
@@ -256,7 +256,7 @@ in stdenv.mkDerivation (rec {
   ] ++ optionals isDarwin [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ optionals ((stdenv.hostPlatform != stdenv.buildPlatform) && !(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) [
     "-DCMAKE_CROSSCOMPILING=True"
     "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
     (