beecrypt: fix build with gcc 14, modernize (#388495)

pkgs/by-name/be/beecrypt/package.nix

@@ -5,22 +5,30 @@
   m4,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "beecrypt";
   version = "4.2.1";
 
   src = fetchurl {
-    url = "mirror://sourceforge/beecrypt/beecrypt-${version}.tar.gz";
-    sha256 = "0pf5k1c4nsj77jfq5ip0ra1gzx2q47xaa0s008fnn6hd11b1yvr8";
+    url = "mirror://sourceforge/beecrypt/beecrypt-${finalAttrs.version}.tar.gz";
+    hash = "sha256-KG8fVggNGmsdAkADpfohWPT/gsrgxoKdPEdqS1iYxV0=";
   };
+
+  postPatch = ''
+    sed -i '33i #include "beecrypt/endianness.h"' blockmode.c
+  '';
+
   buildInputs = [ m4 ];
+
   configureFlags = [
     "--disable-optimized"
     "--enable-static"
   ];
 
   meta = {
+    description = "Strong and fast cryptography toolkit library";
     platforms = lib.platforms.linux;
     license = lib.licenses.lgpl2;
+    maintainers = [ ];
   };
-}
+})