firefox-esr: fix build with Python 3.11

srcpkgs/firefox-esr/patches/fix-iomode-python3.11.patch

@@ -0,0 +1,107 @@
+Support for 'U' mode was removed in python 3.11, see https://bugs.python.org/issue37330
+
+diff --git a/dom/base/usecounters.py b/dom/base/usecounters.py
+index 780e3b3..7e2c714 100644
+--- a/dom/base/usecounters.py
++++ b/dom/base/usecounters.py
+@@ -8,7 +8,7 @@ import re
+ 
+ def read_conf(conf_filename):
+     # Can't read/write from a single StringIO, so make a new one for reading.
+-    stream = open(conf_filename, "rU")
++    stream = open(conf_filename, "r")
+ 
+     def parse_counters(stream):
+         for line_num, line in enumerate(stream):
+diff --git a/python/mozbuild/mozbuild/action/process_define_files.py b/python/mozbuild/mozbuild/action/process_define_files.py
+index f1d401a..aca59d0 100644
+--- a/python/mozbuild/mozbuild/action/process_define_files.py
++++ b/python/mozbuild/mozbuild/action/process_define_files.py
+@@ -36,7 +36,7 @@ def process_define_file(output, input):
+     ) and not config.substs.get("JS_STANDALONE"):
+         config = PartialConfigEnvironment(mozpath.join(topobjdir, "js", "src"))
+ 
+-    with open(path, "rU") as input:
++    with open(path, "r") as input:
+         r = re.compile(
+             "^\s*#\s*(?P<cmd>[a-z]+)(?:\s+(?P<name>\S+)(?:\s+(?P<value>\S+))?)?", re.U
+         )
+diff --git a/python/mozbuild/mozbuild/backend/base.py b/python/mozbuild/mozbuild/backend/base.py
+index 7bc1986..b64a709 100644
+--- a/python/mozbuild/mozbuild/backend/base.py
++++ b/python/mozbuild/mozbuild/backend/base.py
+@@ -272,7 +272,7 @@ class BuildBackend(LoggingMixin):
+         return status
+ 
+     @contextmanager
+-    def _write_file(self, path=None, fh=None, readmode="rU"):
++    def _write_file(self, path=None, fh=None, readmode="r"):
+         """Context manager to write a file.
+ 
+         This is a glorified wrapper around FileAvoidWrite with integration to
+diff --git a/python/mozbuild/mozbuild/preprocessor.py b/python/mozbuild/mozbuild/preprocessor.py
+index f7820b9..857f1a6 100644
+--- a/python/mozbuild/mozbuild/preprocessor.py
++++ b/python/mozbuild/mozbuild/preprocessor.py
+@@ -531,7 +531,7 @@ class Preprocessor:
+ 
+         if args:
+             for f in args:
+-                with io.open(f, "rU", encoding="utf-8") as input:
++                with io.open(f, "r", encoding="utf-8") as input:
+                     self.processFile(input=input, output=out)
+             if depfile:
+                 mk = Makefile()
+@@ -860,7 +860,7 @@ class Preprocessor:
+                     args = self.applyFilters(args)
+                 if not os.path.isabs(args):
+                     args = os.path.join(self.curdir, args)
+-                args = io.open(args, "rU", encoding="utf-8")
++                args = io.open(args, "r", encoding="utf-8")
+             except Preprocessor.Error:
+                 raise
+             except Exception:
+@@ -914,7 +914,7 @@ class Preprocessor:
+ def preprocess(includes=[sys.stdin], defines={}, output=sys.stdout, marker="#"):
+     pp = Preprocessor(defines=defines, marker=marker)
+     for f in includes:
+-        with io.open(f, "rU", encoding="utf-8") as input:
++        with io.open(f, "r", encoding="utf-8") as input:
+             pp.processFile(input=input, output=output)
+     return pp.includes
+ 
+diff --git a/python/mozbuild/mozbuild/util.py b/python/mozbuild/mozbuild/util.py
+index b09f164..4f1e0cd 100644
+--- a/python/mozbuild/mozbuild/util.py
++++ b/python/mozbuild/mozbuild/util.py
+@@ -236,7 +236,7 @@ class FileAvoidWrite(BytesIO):
+     still occur, as well as diff capture if requested.
+     """
+ 
+-    def __init__(self, filename, capture_diff=False, dry_run=False, readmode="rU"):
++    def __init__(self, filename, capture_diff=False, dry_run=False, readmode="r"):
+         BytesIO.__init__(self)
+         self.name = filename
+         assert type(capture_diff) == bool
+diff --git a/python/mozbuild/mozpack/files.py b/python/mozbuild/mozpack/files.py
+index 1d8a1ed..a295a67 100644
+--- a/python/mozbuild/mozpack/files.py
++++ b/python/mozbuild/mozpack/files.py
+@@ -554,7 +554,7 @@ class PreprocessedFile(BaseFile):
+         pp = Preprocessor(defines=self.defines, marker=self.marker)
+         pp.setSilenceDirectiveWarnings(self.silence_missing_directive_warnings)
+ 
+-        with _open(self.path, "rU") as input:
++        with _open(self.path, "r") as input:
+             with _open(os.devnull, "w") as output:
+                 pp.processFile(input=input, output=output)
+ 
+@@ -611,7 +611,7 @@ class PreprocessedFile(BaseFile):
+         pp = Preprocessor(defines=self.defines, marker=self.marker)
+         pp.setSilenceDirectiveWarnings(self.silence_missing_directive_warnings)
+ 
+-        with _open(self.path, "rU") as input:
++        with _open(self.path, "r") as input:
+             pp.processFile(input=input, output=dest, depfile=deps_out)
+ 
+         dest.close()

srcpkgs/firefox-esr/patches/ply-python3.11.patch

@@ -0,0 +1,85 @@
+The Ply lexer, which doesn't seem too active a project, wraps regular
+expressions from grammar definitions in its own regular expressions that name
+groups. This breaks re.compile in Python >= 3.11 when the original expressions
+contain global flags, because the compiler requires that global flags appear at
+the start of the expression instead of inside the named group.
+
+This patch wraps re.compile to scan the expression for any global flags and,
+when found, moves them to the start of the expression.
+
+--- a/third_party/python/ply/ply/lex.py
++++ b/third_party/python/ply/ply/lex.py
+@@ -49,6 +49,37 @@
+     # Python 3.0
+     StringTypes = (str, bytes)
+ 
++
++def _re_compile(expression, *args, **kwargs):
++    '''
++    Rearrange global flags in the regular expression to appear at the
++    beginning, avoiding deprecation warnings on Python < 3.11 and hard
++    errors on Python >= 3.11.
++    '''
++    flags = set()
++    remainder = ''
++
++    pattern = re.compile(r'\(\?([aiLmsux]+)\)')
++    while m := pattern.search(expression):
++        # Location of the global flag spec
++        l, h = m.span(0)
++        # Accumulate global flags from this spec
++        flags.update(m.group(1))
++        # Capture all text leading up to the match
++        remainder += expression[:l]
++        # Trim to the end fo the flag spec
++        expression = expression[h:]
++
++    # Any remaining expression contains no flags
++    remainder += expression
++
++    # If there are flags, they belong at the beginning
++    if flags:
++        remainder = f'(?{"".join(sorted(flags))})' + remainder
++
++    return re.compile(remainder, *args, **kwargs)
++
++
+ # This regular expression is used to match valid token names
+ _is_identifier = re.compile(r'^[a-zA-Z0-9_]+$')
+ 
+@@ -230,7 +261,7 @@
+             titem = []
+             txtitem = []
+             for pat, func_name in lre:
+-                titem.append((re.compile(pat, lextab._lexreflags), _names_to_funcs(func_name, fdict)))
++                titem.append((_re_compile(pat, lextab._lexreflags), _names_to_funcs(func_name, fdict)))
+ 
+             self.lexstatere[statename] = titem
+             self.lexstateretext[statename] = txtitem
+@@ -495,7 +526,7 @@
+         return []
+     regex = '|'.join(relist)
+     try:
+-        lexre = re.compile(regex, reflags)
++        lexre = _re_compile(regex, reflags)
+ 
+         # Build the index to function map for the matching engine
+         lexindexfunc = [None] * (max(lexre.groupindex.values()) + 1)
+@@ -758,7 +789,7 @@
+                     continue
+ 
+                 try:
+-                    c = re.compile('(?P<%s>%s)' % (fname, _get_regex(f)), self.reflags)
++                    c = _re_compile('(?P<%s>%s)' % (fname, _get_regex(f)), self.reflags)
+                     if c.match(''):
+                         self.log.error("%s:%d: Regular expression for rule '%s' matches empty string", file, line, f.__name__)
+                         self.error = True
+@@ -782,7 +813,7 @@
+                     continue
+ 
+                 try:
+-                    c = re.compile('(?P<%s>%s)' % (name, r), self.reflags)
++                    c = _re_compile('(?P<%s>%s)' % (name, r), self.reflags)
+                     if (c.match('')):
+                         self.log.error("Regular expression for rule '%s' matches empty string", name)
+                         self.error = True