folly: fix build

- fix build by adding -fpermissive cflag
- add aarch64-linux to supported platforms

pkgs/development/libraries/folly/default.nix

@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
     zstd
   ];
 
-  NIX_CFLAGS_COMPILE = [ "-DFOLLY_MOBILE=${if follyMobile then "1" else "0"}" ];
+  NIX_CFLAGS_COMPILE = [ "-DFOLLY_MOBILE=${if follyMobile then "1" else "0"}" "-fpermissive" ];
   cmakeFlags = [ "-DBUILD_SHARED_LIBS=ON" ];
 
   meta = with lib; {
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/facebook/folly";
     license = licenses.asl20;
     # 32bit is not supported: https://github.com/facebook/folly/issues/103
-    platforms = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ];
+    platforms = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" "aarch64-linux" ];
     maintainers = with maintainers; [ abbradar pierreis ];
   };
 }