Index: pars/pars0grm.c
--- pars/pars0grm.c.orig	2010-08-03 01:20:50.000000000 +0200
+++ pars/pars0grm.c	2010-08-03 09:41:56.000000000 +0200
@@ -372,8 +372,8 @@
 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
 
 #ifndef YY_
-# if YYENABLE_NLS
-#  if ENABLE_NLS
+# if defined(YYENABLE_NLS)
+#  if defined(ENABLE_NLS)
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 #   define YY_(msgid) dgettext ("bison-runtime", msgid)
 #  endif
@@ -1217,7 +1217,7 @@
    we won't break user code: when these are the locations we know.  */
 
 #ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined(YYLTYPE_IS_TRIVIAL)
 #  define YY_LOCATION_PRINT(File, Loc)			\
      fprintf (File, "%d.%d-%d.%d",			\
 	      (Loc).first_line, (Loc).first_column,	\
