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Commit12eeb3e

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Remove -Werror=unguarded-availability-new from sysconfig data (astral-sh#422)
## SummaryPerastral-sh#210, we now strip `-Werror=unguarded-availability-new` from `CFLAGS` and `CPPFLAGS` (but not, e.g., `CONFIGURE_CFLAGS`).Closesastral-sh#210.
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‎cpython-unix/build-cpython.sh‎

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@@ -644,6 +644,26 @@ def replace_in_all(search, replace):
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replace_in_file(SYSCONFIGDATA, search, replace)
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def replace_in_sysconfigdata(search, replace, keys):
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"""Replace a string in the sysconfigdata file for select keys."""
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with open(SYSCONFIGDATA, "rb") as fh:
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data = fh.read()
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globals_dict = {}
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locals_dict = {}
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exec(data, globals_dict, locals_dict)
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build_time_vars = locals_dict['build_time_vars']
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for key in keys:
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if key in build_time_vars:
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build_time_vars[key] = build_time_vars[key].replace(search, replace)
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with open(SYSCONFIGDATA, "wb") as fh:
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fh.write(b'# system configuration generated and used by the sysconfig module\n')
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fh.write(('build_time_vars = %s' % json.dumps(build_time_vars, indent=4, sort_keys=True)).encode("utf-8"))
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fh.close()
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def format_sysconfigdata():
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"""Reformat the sysconfigdata file to avoid implicit string concatenations.
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@@ -670,6 +690,18 @@ def format_sysconfigdata():
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# Format sysconfig to ensure that string replacements take effect.
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format_sysconfigdata()
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# Remove`-Werror=unguarded-availability-new` from`CFLAGS` and`CPPFLAGS`.
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# These flags are passed along when building extension modules. In that context,
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#`-Werror=unguarded-availability-new` can cause builds that would otherwise
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# succeed to fail. While the issues raised by`-Werror=unguarded-availability-new`
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# are legitimate, enforcing them in extension modules is stricter than CPython's
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# own behavior.
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replace_in_sysconfigdata(
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"-Werror=unguarded-availability-new",
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"",
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["CFLAGS", "CPPFLAGS"],
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)
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# Remove the Xcode path from the compiler flags.
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#
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# CPython itself will drop this from`sysconfig.get_config_var("CFLAGS")` and

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