read_symlink: more fallback

Author: scivision

+stdlib/read_symlink.m

@@ -19,7 +19,10 @@
     case "MATLAB:UndefinedFunction"
       if ~stdlib.is_symlink(p), return, end
 
-      if stdlib.has_dotnet() && stdlib.dotnet_api() >= 6
+      if stdlib.has_python()
+        % https://docs.python.org/3/library/pathlib.html#pathlib.Path.readlink
+        r = string(py.str(py.pathlib.Path(p).readlink()));
+      elseif stdlib.has_dotnet() && stdlib.dotnet_api() >= 6
         r = System.IO.FileInfo(p).LinkTarget;
       elseif stdlib.has_java()
         % must be absolute path

buildfile.m

@@ -277,7 +277,7 @@ function build_exe(context)
 srcs{end+1} = ["src/is_symlink.cpp", win, sym];
 end
 
-if (isMATLABReleaseOlderThan("R2024b") && ~stdlib.has_dotnet() || stdlib.dotnet_api() < 6) || build_all
+if (isMATLABReleaseOlderThan("R2024b") && ~stdlib.has_java() && ~stdlib.has_python() && ~stdlib.has_dotnet() || stdlib.dotnet_api() < 6) || build_all
 srcs{end+1} = ["src/read_symlink.cpp", win, sym];
 end