- [AC_CHECK_FUNC([setxattr],
- [AC_CHECK_HEADER([attr/xattr.h],
- [ENABLE_XATTR=yes],
- [AC_MSG_WARN([Cannot find the "attr/xattr.h" header. You will not be
+ [if test "x$ENABLE_XATTR_DEFAULT" = "xautodetect"; then
+ AC_CHECK_FUNC([setxattr],
+ [AC_CHECK_HEADER([attr/xattr.h],
+ [ENABLE_XATTR=yes],
+ [AC_MSG_WARN([Cannot find the "attr/xattr.h" header. You will not be
+ able to use the xattr interface to access WIM alternate data
+ streams.])])],
+ [AC_MSG_WARN([Cannot find the setxattr() function. You will not be