maint: fix some syntax-check issues

* cfg.mk: Nuke the following warnings which are confused by our
text reports (that state that the error token is number 256).
  prohibit_magic_number_exit
  ../../doc/bison.texi:8170:error (256)
  ../../tests/conflicts.at:570:error (256)
  ../../tests/conflicts.at:673:error (256)
  ../../tests/conflicts.at:811:error (256)
  ../../tests/conflicts.at:1154:error (256)
  ../../tests/regression.at:281:error (256)
  ../../tests/regression.at:582:error (256)
  maint.mk: use EXIT_* values rather than magic number

diff --git a/cfg.mk b/cfg.mk
index 2f1a9e94248f26b46d74bb9f30f7de38a6b9f3f0..53855aefc78e01481201ac5bdf9fd04044d14e32 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -65,12 +65,14 @@ exclude = \
 $(call exclude,                                                                \
   bindtextdomain=^lib/main.c$$                                         \
   program_name=^lib/main.c$$                                           \
-  prohibit_always-defined_macros=^data/yacc.c|^djgpp/                  \
+  prohibit_always-defined_macros=^data/yacc.c$$|^djgpp/                        \
   prohibit_always-defined_macros+=?|^lib/timevar.c$$                   \
   prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$     \
   prohibit_always-defined_macros+=?|^tests/regression.at$$             \
   prohibit_defined_have_decl_tests=?|^lib/timevar.c$$                  \
   prohibit_empty_lines_at_EOF=^src/parse-gram.[ch]$$                   \
+  prohibit_magic_number_exit=^doc/bison.texi$$                         \
+  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$     \
   require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$           \
   space_tab=^tests/(input|c\+\+)\.at$$                                 \
   trailing_blank=^src/parse-gram.[ch]$$                                        \