From ba9e02f862b0540b809ea7c064eb7b4f04fd7512 Mon Sep 17 00:00:00 2001
From: Steve Klabnik <steve@steveklabnik.com>
Date: Mon, 24 Nov 2014 17:23:55 -0500
Subject: [PATCH] remove the generation of grammar from the reference

---
 configure  |  1 -
 mk/docs.mk | 20 --------------------
 2 files changed, 21 deletions(-)

diff --git a/configure b/configure
index 5ac39822059..613f62db9e4 100755
--- a/configure
+++ b/configure
@@ -624,7 +624,6 @@ probe CFG_LD               ld
 probe CFG_VALGRIND         valgrind
 probe CFG_PERF             perf
 probe CFG_ISCC             iscc
-probe CFG_LLNEXTGEN        LLnextgen
 probe CFG_JAVAC            javac
 probe CFG_ANTLR4           antlr4
 probe CFG_GRUN             grun
diff --git a/mk/docs.mk b/mk/docs.mk
index 48eb9e81c20..59b17ff16de 100644
--- a/mk/docs.mk
+++ b/mk/docs.mk
@@ -246,26 +246,6 @@ endef
 $(foreach lang,$(L10N_LANGS),$(eval $(call DEF_L10N_DOC,$(lang),guide)))
 
 
-######################################################################
-# LLnextgen (grammar analysis from refman)
-######################################################################
-
-ifeq ($(CFG_LLNEXTGEN),)
-  $(info cfg: no llnextgen found, omitting grammar-verification)
-else
-.PHONY: verify-grammar
-
-doc/rust.g: $(D)/rust.md $(S)src/etc/extract_grammar.py
-	@$(call E, extract_grammar: $@)
-	$(Q)$(CFG_PYTHON) $(S)src/etc/extract_grammar.py $< >$@
-
-verify-grammar: doc/rust.g
-	@$(call E, LLnextgen: $<)
-	$(Q)$(CFG_LLNEXTGEN) --generate-lexer-wrapper=no $< >$@
-	$(Q)rm -f doc/rust.c doc/rust.h
-endif
-
-
 ######################################################################
 # Rustdoc (libstd/extra)
 ######################################################################