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# ===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
# ===----------------------------------------------------------------------===##
# Make sure that libc++ headers work when defining _XOPEN_SOURCE=500.
# We may not want to guarantee this forever, but since this works today and
# it's something that users rely on, it makes sense to put a test on it.
#
# https://llvm.org/PR117630
# Some parts of the code like <fstream> use non-standard functions in their implementation,
# and these functions are not provided when _XOPEN_SOURCE is set to older values. This
# breaks when building with modules even when we don't use the offending headers directly.
# UNSUPPORTED: clang-modules-build
# The AIX localization support uses some functions as part of their headers that require a
# recent value of _XOPEN_SOURCE.
# UNSUPPORTED: LIBCXX-AIX-FIXME
# This test fails on FreeBSD for an unknown reason.
# UNSUPPORTED: LIBCXX-FREEBSD-FIXME
# RUN: %{python} %s %{libcxx-dir}/utils
# END.
import sys
sys.path.append(sys.argv[1])
from libcxx.header_information import (
lit_header_restrictions,
lit_header_undeprecations,
public_headers,
)
for header in public_headers:
for version in (500, 600, 700):
# TODO: <fstream> currently uses ::fseeko unguarded, which fails with _XOPEN_SOURCE=500.
if header == "fstream" and version == 500:
continue
print(
f"""\
//--- {header}.xopen_source_{version}.compile.pass.cpp
{lit_header_restrictions.get(header, '')}
{lit_header_undeprecations.get(header, '')}
// ADDITIONAL_COMPILE_FLAGS: -D_XOPEN_SOURCE={version}
#include <{header}>
"""
)
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