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46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
# xattr.m4 - check for Extended Attributes (Linux)
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# serial 4
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# Copyright 2003-2025 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# Originally written by Andreas Gruenbacher.
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# http://www.suse.de/~agruen/coreutils/5.91/coreutils-xattr.diff
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AC_DEFUN([gl_FUNC_XATTR],
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[
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AC_ARG_ENABLE([xattr],
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AS_HELP_STRING([--disable-xattr],
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[do not support extended attributes]),
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[use_xattr=$enableval], [use_xattr=yes])
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LIB_XATTR=
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AC_SUBST([LIB_XATTR])
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if test "$use_xattr" = "yes"; then
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AC_CHECK_HEADERS([attr/error_context.h attr/libattr.h])
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use_xattr=no
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if test $ac_cv_header_attr_libattr_h = yes \
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&& test $ac_cv_header_attr_error_context_h = yes; then
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xattr_saved_LIBS=$LIBS
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AC_SEARCH_LIBS([attr_copy_file], [attr],
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[test "$ac_cv_search_attr_copy_file" = "none required" ||
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LIB_XATTR=$ac_cv_search_attr_copy_file])
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AC_CHECK_FUNCS([attr_copy_file attr_copy_action])
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LIBS=$xattr_saved_LIBS
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if test $ac_cv_func_attr_copy_file = yes \
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&& test $ac_cv_func_attr_copy_action = yes; then
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use_xattr=yes
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fi
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fi
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if test $use_xattr = no; then
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AC_MSG_WARN([libattr development library was not found or not usable.])
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AC_MSG_WARN([AC_PACKAGE_NAME will be built without xattr support.])
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fi
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fi
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AC_DEFINE_UNQUOTED([USE_XATTR], [`test $use_xattr != yes; echo $?`],
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[Define if you want extended attribute support.])
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])
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