readstat: fix build with clang 16

pkgs/applications/science/math/readstat/default.nix

···
-{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config, libiconv }:
+{ lib, stdenv, fetchFromGitHub, fetchpatch, autoreconfHook, pkg-config, libiconv }:
 
 stdenv.mkDerivation rec {
   pname = "readstat";
···
     sha256 = "sha256-4lRJgZPB2gfaQ9fQKvDDpGhy1eDNT/nT1QmeZlCmCis=";
   };
 
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/WizardMac/ReadStat/commit/211c342a1cfe46fb7fb984730dd7a29ff4752f35.patch";
+      hash = "sha256-nkaEgusylVu7NtzSzBklBuOnqO9qJPovf0qn9tTE6ls=";
+    })
+  ];
+
   nativeBuildInputs = [ pkg-config autoreconfHook ];
 
   buildInputs = [ libiconv ];
···
     description = "Command-line tool (+ C library) for converting SAS, Stata, and SPSS files";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ swflint ];
+    platforms = lib.platforms.all;
   };
 }