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-rw-r--r--nixpkgs/pkgs/development/compilers/neko/default.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/neko/default.nix b/nixpkgs/pkgs/development/compilers/neko/default.nix
index 40e39d411d69..fff5762a38d7 100644
--- a/nixpkgs/pkgs/development/compilers/neko/default.nix
+++ b/nixpkgs/pkgs/development/compilers/neko/default.nix
@@ -29,6 +29,9 @@ stdenv.mkDerivation rec {
       ++ lib.optionals stdenv.isDarwin [ pkgs.darwin.apple_sdk.frameworks.Security
                                                 pkgs.darwin.apple_sdk.frameworks.Carbon];
   cmakeFlags = [ "-DRUN_LDCONFIG=OFF" ];
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";
+  };
 
   installCheckPhase = ''
     bin/neko bin/test.n