#ifdef USE_NLS
// apt will use the gettext implementation of the C library
-# include <libintl.h>
+#include <libintl.h>
+#include <locale.h>
# ifdef APT_DOMAIN
# define _(x) dgettext(APT_DOMAIN,x)
+# define P_(msg,plural,n) dngettext(APT_DOMAIN,msg,plural,n)
# else
# define _(x) gettext(x)
+# define P_(msg,plural,n) ngettext(msg,plural,n)
# endif
+# define N_(x) x
#else
// apt will not use any gettext
# define setlocale(a, b)
+# define textdomain(a)
+# define bindtextdomain(a, b)
# define _(x) x
+# define P_(msg,plural,n) (n == 1 ? msg : plural)
+# define N_(x) x
+# define dgettext(d, m) m
#endif