[ragel-users] [PATCH] Handle the new ragel version format in the autoconf script

[Wictor Lund]

Hi,

Some older ragel version I have does like this:

$ ragel --version
Ragel State Machine Compiler version 6.9 Oct 2014
Copyright (c) 2001-2009 by Adrian Thurston

, while a newer one does like this:

$ ragel --version      
Ragel State Machine Compiler version 7.0.0.9 August 2016                                                 
Copyright (c) 2001-2015 by Adrian Thurston          

The current contrib/ragel.m4 file cannot parse the newer --version string. 
I propose that contrib/ragel.m4 should be fixed according to the attached
patch.

--
Wictor Lund

---
 contrib/ragel.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/ragel.m4 b/contrib/ragel.m4
index 3629d334..e7b42425 100644
--- a/contrib/ragel.m4
+++ b/contrib/ragel.m4
@@ -23,7 +23,7 @@ AC_DEFUN([CHECK_RAGEL], [
   AS_IF([test x"$RAGEL" = x"no"],
         [RAGEL=false],
 	AS_IF([test x"$2" != "x"],
-	      [ragel_version=`$RAGEL --version | sed -n -e '1s:.*version \(@<:@0-9@:>@\.@<:@0-9@:>@\) .*:\1:p'`
+	      [ragel_version=`$RAGEL --version | sed -n -e '1s:.*version \(@<:@0-9@:>@\.@<:@0-9@:>@\)\(\.@<:@0-9@:>@\)* .*:\1:p'`
 	       ragel_version_compare=`echo $ragel_version | tr -d .`
 	       ragel_wanted_version=`echo $2 | tr -d .`
 	       AS_IF([test $ragel_version_compare -lt $ragel_wanted_version],
-- 
2.22.0