From d655b825e3db9aa02adb8d5df9d995a6fd6a9e92 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 6 Feb 2016 13:53:35 -0800
Subject: Require re2c >= 1.14.2.

Version <= 1.13.7 don't allow the `-8` option.

Closes #102.
---
 Makefile  | 5 ++---
 README.md | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 4128ea0..039089e 100644
--- a/Makefile
+++ b/Makefile
@@ -106,9 +106,8 @@ $(SRCDIR)/case_fold_switch.inc: $(DATADIR)/CaseFolding-3.2.0.txt
 # normally need to be generated.
 $(SRCDIR)/scanners.c: $(SRCDIR)/scanners.re
 	@case "$$(re2c -v)" in \
-	    *\ 0.13.7*|*\ 0.14|*\ 0.14.1) \
-		echo "re2c versions 0.13.7 through 0.14.1 are known to produce buggy code."; \
-		echo "Try a version >= 0.14.2 or <= 0.13.6."; \
+	    *\ 0.13.*|*\ 0.14|*\ 0.14.1) \
+		echo "re2c >= 0.14.2 is required"; \
 		false; \
 		;; \
 	esac
diff --git a/README.md b/README.md
index 5592f78..b326a72 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ Installing
 
 Building the C program (`cmark`) and shared library (`libcmark`)
 requires [cmake].  If you modify `scanners.re`, then you will also
-need [re2c], which is used to generate `scanners.c` from
+need [re2c] (>= 1.14.2), which is used to generate `scanners.c` from
 `scanners.re`.  We have included a pre-generated `scanners.c` in
 the repository to reduce build dependencies.
 
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