__GETOPT_XCONCAT   36 maint/gnulib/lib/getopt-pfx-core.h #  define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
__GETOPT_XCONCAT   36 maint/gnulib/lib/getopt-pfx-ext.h #  define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)