From 038bed1fa17743cbbfe4d219b6798d88254eef2c Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Fri, 6 May 2016 06:49:17 -0700
Subject: Some recent versions of flex contain // comment.

Makefile (lex.yy.c): Crudely and shamelessly filter lex.yy.c
through sed to remove // commments, even if // occurs in a
string literal or a /*...*/ comment which ends on that line.
---
 Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index eaf50be1..6fb88e8e 100644
--- a/Makefile
+++ b/Makefile
@@ -207,7 +207,12 @@ $(eval $(foreach item,y.tab.c y.tab.h lex.yy.c,\
 lex.yy.c: $(top_srcdir)parser.l
 	$(call ABBREV,LEX)
 	$(V)rm -f $@
-	$(V)$(LEX) $(LEX_DBG_FLAGS) $<
+	$(V)if $(LEX) $(LEX_DBG_FLAGS) $< ; then \
+	  sed -e s@//.*@@ < $@ > $@.tmp ; \
+	  mv $@.tmp $@ ; \
+	else \
+	  exit 1 ; \
+	fi
 	$(V)chmod a-w $@
 
 y.tab.h: y.tab.c
-- 
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