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-rw-r--r--pkgs/build-support/rust/default.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index 028390640d1..2579c97b99e 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -56,6 +56,9 @@ in stdenv.mkDerivation (args // {
 
   patches = cargoPatches ++ patches;
 
+  PKG_CONFIG_ALLOW_CROSS =
+    if stdenv.buildPlatform != stdenv.hostPlatform then 1 else 0;
+
   postUnpack = ''
     eval "$cargoDepsHook"