bzip2: Add `enableStatic`. See #61575

pkgs/stdenv/darwin/make-bootstrap-tools.nix

···
   cctools_ = darwin.cctools;
 
   # Avoid debugging larger changes for now.
-  bzip2_ = bzip2.override (args: { linkStatic = true; });
+  bzip2_ = bzip2.override (args: { enableStatic = true; enableShared = false; });
 
   # Avoid messing with libkrb5 and libnghttp2.
   curl_ = curlMinimal.override (args: { gssSupport = false; http2Support = false; });

pkgs/tools/compression/bzip2/default.nix

···
 { lib, stdenv, fetchurl
-, linkStatic ? with stdenv.hostPlatform; isStatic || isCygwin
+, enableStatic ? with stdenv.hostPlatform; isStatic || isCygwin
+, enableShared ? true
 , autoreconfHook
 , testers
 }:
···
 
   outputs = [ "bin" "dev" "out" "man" ];
 
-  configureFlags =
-    lib.optionals linkStatic [ "--enable-static" "--disable-shared" ];
+  configureFlags = lib.concatLists [
+    (lib.optional enableStatic "--enable-static")
+    (lib.optional (!enableShared) "--disable-shared")
+  ];
+
+  dontDisableStatic = enableStatic;
 
   enableParallelBuilding = true;