From ecf87e949f0aac6cac7d0b908d56f7aa5c988f3c Mon Sep 17 00:00:00 2001
From: Roland Schatz <roland.schatz@oracle.com>
Date: Thu, 5 Feb 2026 10:54:02 +0100
Subject: [PATCH 1/4] Add `LANGUAGES NONE` to cmake projects that don't use any
 compilers.

---
 .../CMakeLists.txt                                            | 2 +-
 graalpython/graalpy-versions/CMakeLists.txt                   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/graalpython/com.oracle.graal.python.pegparser.generator/CMakeLists.txt b/graalpython/com.oracle.graal.python.pegparser.generator/CMakeLists.txt
index a08a623fdc..c029f65407 100644
--- a/graalpython/com.oracle.graal.python.pegparser.generator/CMakeLists.txt
+++ b/graalpython/com.oracle.graal.python.pegparser.generator/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.10)
-project(pegparser)
+project(pegparser LANGUAGES NONE)
 
 set(PEGPARSER_SRC_PATH "${CMAKE_CURRENT_LIST_DIR}/../com.oracle.graal.python.pegparser/src")
 set(GRAALPY_SRC_PATH "${CMAKE_CURRENT_LIST_DIR}/../com.oracle.graal.python/src")
diff --git a/graalpython/graalpy-versions/CMakeLists.txt b/graalpython/graalpy-versions/CMakeLists.txt
index ab3b5d2bad..aff3acc34c 100644
--- a/graalpython/graalpy-versions/CMakeLists.txt
+++ b/graalpython/graalpy-versions/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2023, Oracle and/or its affiliates.
+# Copyright (c) 2023, 2026, Oracle and/or its affiliates.
 #
 # All rights reserved.
 #
@@ -27,7 +27,7 @@
 # OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 cmake_minimum_required(VERSION 3.22)
-project(graalpy-versions)
+project(graalpy-versions LANGUAGES NONE)
 
 if (NOT DEFINED GRAALPY_VER)
     message(FATAL_ERROR "GRAALPY_VER needs to be set")

From 8a82bbad63f1bf418883af5d5fa84b1c16a571bb Mon Sep 17 00:00:00 2001
From: Roland Schatz <roland.schatz@oracle.com>
Date: Thu, 5 Feb 2026 14:21:56 +0100
Subject: [PATCH 2/4] Avoid writing to source files during build if not
 modified.

---
 .../freeze_modules.py                         | 45 +++++++++++--------
 .../asdl/java_file.py                         | 34 ++++++++++----
 .../graal/python/pegparser/sst/AliasTy.java   |  2 +-
 .../graal/python/pegparser/sst/ArgTy.java     |  2 +-
 .../python/pegparser/sst/ArgumentsTy.java     |  2 +-
 .../graal/python/pegparser/sst/BoolOpTy.java  |  2 +-
 .../graal/python/pegparser/sst/CmpOpTy.java   |  2 +-
 .../python/pegparser/sst/ComprehensionTy.java |  2 +-
 .../python/pegparser/sst/ExceptHandlerTy.java |  2 +-
 .../python/pegparser/sst/ExprContextTy.java   |  2 +-
 .../graal/python/pegparser/sst/ExprTy.java    |  2 +-
 .../graal/python/pegparser/sst/KeywordTy.java |  2 +-
 .../python/pegparser/sst/MatchCaseTy.java     |  2 +-
 .../graal/python/pegparser/sst/ModTy.java     |  2 +-
 .../python/pegparser/sst/OperatorTy.java      |  2 +-
 .../graal/python/pegparser/sst/PatternTy.java |  2 +-
 .../python/pegparser/sst/SSTreeVisitor.java   |  2 +-
 .../graal/python/pegparser/sst/StmtTy.java    |  2 +-
 .../python/pegparser/sst/TypeIgnoreTy.java    |  2 +-
 .../python/pegparser/sst/TypeParamTy.java     |  2 +-
 .../graal/python/pegparser/sst/UnaryOpTy.java |  2 +-
 .../python/pegparser/sst/WithItemTy.java      |  2 +-
 .../python/builtins/modules/ast/AstState.java |  2 +-
 .../python/builtins/modules/ast/Obj2Sst.java  |  2 +-
 .../builtins/modules/ast/Sst2ObjVisitor.java  |  2 +-
 .../objects/module/FrozenModules.java         |  2 +-
 26 files changed, 75 insertions(+), 52 deletions(-)

diff --git a/graalpython/com.oracle.graal.python.frozen/freeze_modules.py b/graalpython/com.oracle.graal.python.frozen/freeze_modules.py
index 99e2a06826..ce4e6c5c5e 100644
--- a/graalpython/com.oracle.graal.python.frozen/freeze_modules.py
+++ b/graalpython/com.oracle.graal.python.frozen/freeze_modules.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2021, 2025, Oracle and/or its affiliates.
+# Copyright (c) 2021, 2026, Oracle and/or its affiliates.
 # Copyright (C) 1996-2020 Python Software Foundation
 #
 # Licensed under the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
@@ -14,6 +14,7 @@
 import shutil
 import sys
 from collections import namedtuple
+from io import StringIO
 
 FROZEN_ONLY = os.path.join(os.path.dirname(__file__), "flag.py")
 
@@ -492,7 +493,7 @@ def lower_camel_case(str):
 # write frozen files
 
 FROZEN_MODULES_HEADER = """/*
- * Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2021, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -596,28 +597,34 @@ def write_frozen_module_file(file, modules):
                 linesep = os.linesep
         else:
             linesep = "\n"
-        stat_result = os.stat(file)
-        atime, mtime = stat_result.st_atime, stat_result.st_mtime
     else:
         linesep = os.linesep
         content = None
+
+    # Generate content in memory so we can compare with existing content and avoid
+    # rewriting unchanged files (e.g. in case of a read-only source filesystem).
+
+    buf = StringIO(newline=linesep)
+    buf.write(FROZEN_MODULES_HEADER)
+    buf.write("\n\n")
+    write_frozen_modules_map(buf, modules)
+    buf.write("\n")
+    write_frozen_lookup(buf, modules)
+    buf.write("}\n")
+    generated = buf.getvalue()
+
+    if content is not None and content == generated:
+        print(f"{file} not modified")
+        return
+
+    # Content differs (or file is missing). Now try to update the real file.
+    # If the source filesystem is read-only, this will fail.
     os.makedirs(os.path.dirname(file), exist_ok=True)
     with open(file, "w", encoding="utf-8", newline=linesep) as out_file:
-        out_file.write(FROZEN_MODULES_HEADER)
-        out_file.write("\n\n")
-        write_frozen_modules_map(out_file, modules)
-        out_file.write("\n")
-        write_frozen_lookup(out_file, modules)
-        out_file.write("}\n")
-    with open(file, "r", encoding="utf-8", newline=linesep) as f:
-        new_content = f.read()
-    if new_content == content:
-        # set mtime to the old one, if we didn't change anything
-        print(f"{file} not modified")
-        os.utime(file, (atime, mtime))
-    else:
-        print(f"{file} modified, rebuild needed!")
-        sys.exit(1)
+        out_file.write(generated)
+
+    print(f"{file} modified, rebuild needed!")
+    sys.exit(1)
 
 
 def add_tabs(str, number):
diff --git a/graalpython/com.oracle.graal.python.pegparser.generator/asdl/java_file.py b/graalpython/com.oracle.graal.python.pegparser.generator/asdl/java_file.py
index 0f7ef7b5b1..c9076d5cd3 100644
--- a/graalpython/com.oracle.graal.python.pegparser.generator/asdl/java_file.py
+++ b/graalpython/com.oracle.graal.python.pegparser.generator/asdl/java_file.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022, 2025, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, 2026, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # The Universal Permissive License (UPL), Version 1.0
@@ -39,10 +39,11 @@
 import os
 import textwrap
 from contextlib import contextmanager
+from io import StringIO
 from typing import Optional
 
 HEADER = """/*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -136,9 +137,9 @@ def create(out_dir_base: str, java_package: str, java_class_name: str):
     # Determine which line separator to use
     if os.path.exists(filename):
         with open(filename, "r", encoding="utf-8", newline=os.linesep) as f:
-            content = f.read()
+            old_content = f.read()
         if os.linesep != "\n":
-            if content.replace(os.linesep, "\n") == content:
+            if old_content.replace(os.linesep, "\n") == old_content:
                 # Windows file has Unix line endings
                 linesep = "\n"
             else:
@@ -146,10 +147,25 @@ def create(out_dir_base: str, java_package: str, java_class_name: str):
         else:
             linesep = "\n"
     else:
+        old_content = None
         linesep = os.linesep
 
-    with open(filename, 'w', encoding="utf-8", newline=linesep) as f:
-        emitter = Emitter(f)
-        f.write(HEADER)
-        f.write(f'package {java_package};\n')
-        yield emitter
+    # Generate content in memory so we can compare with existing content and avoid
+    # rewriting unchanged files (e.g. in case of a read-only source filesystem).
+    buf = StringIO(newline=linesep)
+    emitter = Emitter(buf)
+    buf.write(HEADER)
+    buf.write(f'package {java_package};\n')
+
+    yield emitter
+
+    generated = buf.getvalue()
+
+    if old_content is not None and old_content == generated:
+        # Not modified.
+        return
+
+    # Content differs (or file is missing). Now try to update the real file.
+    # If the source filesystem is read-only, this will fail.
+    with open(filename, "w", encoding="utf-8", newline=linesep) as f:
+        f.write(generated)
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/AliasTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/AliasTy.java
index a492e85003..6d32f7c4ee 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/AliasTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/AliasTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgTy.java
index 07c350cef1..cd8424278d 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgumentsTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgumentsTy.java
index f73083ec50..a817b72195 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgumentsTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ArgumentsTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/BoolOpTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/BoolOpTy.java
index e62e44bcb0..d69a8c2e19 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/BoolOpTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/BoolOpTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/CmpOpTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/CmpOpTy.java
index 2f154eb844..83fc3aa81d 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/CmpOpTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/CmpOpTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ComprehensionTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ComprehensionTy.java
index f42a5e1427..20dadbcb5a 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ComprehensionTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ComprehensionTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExceptHandlerTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExceptHandlerTy.java
index 6c0aa13c2f..1b8f05a1cd 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExceptHandlerTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExceptHandlerTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprContextTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprContextTy.java
index e6f4f850b1..c00e0008fc 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprContextTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprContextTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprTy.java
index 1fb5d88c9d..ffce004cde 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ExprTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/KeywordTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/KeywordTy.java
index 32aeca4faf..3e3fbc736c 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/KeywordTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/KeywordTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/MatchCaseTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/MatchCaseTy.java
index f7f80b4fd7..ae95ba1287 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/MatchCaseTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/MatchCaseTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ModTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ModTy.java
index 6ea70dcabe..732e480a2d 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ModTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/ModTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/OperatorTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/OperatorTy.java
index 15222bba8b..b8f66b23ad 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/OperatorTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/OperatorTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/PatternTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/PatternTy.java
index 4b6ff77335..ec48d65cda 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/PatternTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/PatternTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/SSTreeVisitor.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/SSTreeVisitor.java
index fbc557ff1e..76017e195a 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/SSTreeVisitor.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/SSTreeVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/StmtTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/StmtTy.java
index 4a923ad404..dd6c1e1839 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/StmtTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/StmtTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeIgnoreTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeIgnoreTy.java
index c5952df203..a07527e511 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeIgnoreTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeIgnoreTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeParamTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeParamTy.java
index 0fe499b948..0eaaddd3e1 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeParamTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/TypeParamTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/UnaryOpTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/UnaryOpTy.java
index 03b2e2d6a6..b3d36ea972 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/UnaryOpTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/UnaryOpTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/WithItemTy.java b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/WithItemTy.java
index 7a102ea40f..75b4f19709 100644
--- a/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/WithItemTy.java
+++ b/graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/sst/WithItemTy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/AstState.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/AstState.java
index d0018bf8db..f0dae5b3f5 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/AstState.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/AstState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Obj2Sst.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Obj2Sst.java
index cd191da896..1f8a83450f 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Obj2Sst.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Obj2Sst.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Sst2ObjVisitor.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Sst2ObjVisitor.java
index 296164d0bf..0fd07d102c 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Sst2ObjVisitor.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ast/Sst2ObjVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/module/FrozenModules.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/module/FrozenModules.java
index d0cc70628a..8c7d926a52 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/module/FrozenModules.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/module/FrozenModules.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2021, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0

From 648da30ec9ad2f405d9b9c0d5ab944ea15e97c61 Mon Sep 17 00:00:00 2001
From: Roland Schatz <roland.schatz@oracle.com>
Date: Thu, 5 Feb 2026 15:22:09 +0100
Subject: [PATCH 3/4] Skip copy of compile_commands.json to source dir if
 mounted read-only.

---
 .../com.oracle.graal.python.cext/CMakeLists.txt    | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/graalpython/com.oracle.graal.python.cext/CMakeLists.txt b/graalpython/com.oracle.graal.python.cext/CMakeLists.txt
index 042556ac15..8a26d9d95e 100644
--- a/graalpython/com.oracle.graal.python.cext/CMakeLists.txt
+++ b/graalpython/com.oracle.graal.python.cext/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2023, 2025, Oracle and/or its affiliates.
+# Copyright (c) 2023, 2026, Oracle and/or its affiliates.
 #
 # All rights reserved.
 #
@@ -36,8 +36,16 @@ function(require_var var)
 endfunction()
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-add_custom_target(compile_commands_target ALL
-  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/compile_commands.json" "${CMAKE_SOURCE_DIR}")
+
+execute_process(COMMAND ${CMAKE_COMMAND} -E touch "${CMAKE_SOURCE_DIR}/.compile_commands.json.probe" RESULT_VARIABLE _touch_res)
+if(_touch_res EQUAL 0)
+    file(REMOVE "${CMAKE_SOURCE_DIR}/.compile_commands.json.probe")
+    add_custom_target(compile_commands_target ALL
+        COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/compile_commands.json" "${CMAKE_SOURCE_DIR}")
+else()
+    message(STATUS "Source directory is not writable, skipping copy of compile_commands.json.")
+    add_custom_target(compile_commands_target)
+endif()
 
 require_var(GRAALPY_PARENT_DIR)
 require_var(CAPI_INC_DIR)

From 23f3389b674f95a92daa8f4bb4a6f5b7da80e136 Mon Sep 17 00:00:00 2001
From: Roland Schatz <roland.schatz@oracle.com>
Date: Mon, 9 Feb 2026 15:09:59 +0100
Subject: [PATCH 4/4] Pin hpy setuptools dependency to 80.10.2 (pkg_resources
 deprecated).

---
 graalpython/hpy/setup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/graalpython/hpy/setup.py b/graalpython/hpy/setup.py
index 9a1cb9f2eb..09dda3c4ec 100644
--- a/graalpython/hpy/setup.py
+++ b/graalpython/hpy/setup.py
@@ -264,6 +264,6 @@ def build_libraries(self, libraries):
     cmdclass={"build_clib": build_clib_hpy},
     use_scm_version=get_scm_config,
     setup_requires=['setuptools_scm'],
-    install_requires=['setuptools>=64.0'],
+    install_requires=['setuptools==80.10.2'],
     python_requires='>=3.8',
 )