1 files changed, 7 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/tools/misc/hdf4/default.nix b/nixpkgs/pkgs/tools/misc/hdf4/default.nix
index b6577a17bb19..2636cb71717b 100644
--- a/nixpkgs/pkgs/tools/misc/hdf4/default.nix
+++ b/nixpkgs/pkgs/tools/misc/hdf4/default.nix
@@ -95,6 +95,13 @@ stdenv.mkDerivation rec {
   else [ "-DHDF4_BUILD_FORTRAN=OFF" ]
   );
 
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_CFLAGS_COMPILE = toString [
+      "-Wno-error=implicit-function-declaration"
+      "-Wno-error=implicit-int"
+    ];
+  };
+
   doCheck = true;
 
   excludedTests = lib.optionals stdenv.isDarwin [