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fix: remove -stdlib=libc++ from setup helpers, not needed on modern Pythons #4639

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Merged
merged 2 commits into from
May 1, 2023
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fix: remove -stdlib=libc++ from setup helpers, not needed on modern Pythons #4639

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4880e71
Inject -stdlib=libc++ on macOS only when it's supported, close #4637.
biergaizi Apr 25, 2023
146a89a
revert: just remove flags
henryiii Apr 28, 2023
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5 changes: 0 additions & 5 deletions pybind11/setup_helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,6 @@ def __init__(self, *args: Any, **kwargs: Any) -> None:
self.cxx_std = cxx_std

cflags = []
ldflags = []
if WIN:
cflags += ["/EHsc", "/bigobj"]
else:
Expand All @@ -154,11 +153,7 @@ def __init__(self, *args: Any, **kwargs: Any) -> None:
c_cpp_flags = shlex.split(env_cflags) + shlex.split(env_cppflags)
if not any(opt.startswith("-g") for opt in c_cpp_flags):
cflags += ["-g0"]
if MACOS:
cflags += ["-stdlib=libc++"]
ldflags += ["-stdlib=libc++"]
self._add_cflags(cflags)
self._add_ldflags(ldflags)

@property
def cxx_std(self) -> int:
Expand Down