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closes bpo-34652: Always disable lchmod on Linux. (GH-9234) · python/cpython@bdace2e

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Ensure :func:`os.lchmod` is never defined on Linux.

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done

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# Force lchmod off for Linux. Linux disallows changing the mode of symbolic

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# links. Some libc implementations have a stub lchmod implementation that always

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# returns an error.

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if test "$MACHDEP" != linux; then

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ac_fn_c_check_func "$LINENO" "lchmod" "ac_cv_func_lchmod"

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if test "x$ac_cv_func_lchmod" = xyes; then :

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fi

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fi

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ac_fn_c_check_decl "$LINENO" "dirfd" "ac_cv_have_decl_dirfd" "#include <sys/types.h>

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#include <dirent.h>

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"

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@@ -3495,6 +3495,13 @@ AC_CHECK_FUNCS(alarm accept4 setitimer getitimer bind_textdomain_codeset chown \

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truncate uname unlinkat unsetenv utimensat utimes waitid waitpid wait3 wait4 \

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wcscoll wcsftime wcsxfrm wmemcmp writev _getpty)

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# Force lchmod off for Linux. Linux disallows changing the mode of symbolic

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# links. Some libc implementations have a stub lchmod implementation that always

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# returns an error.

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if test "$MACHDEP" != linux; then

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AC_CHECK_FUNC(lchmod)

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fi

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AC_CHECK_DECL(dirfd,

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AC_DEFINE(HAVE_DIRFD, 1,

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Define if you have the 'dirfd' function or macro.), ,