Upgrading to Ragel 6.1 on Mac OS X 10.5.2 LeopardEdit

Created , updated

These notes were made while upgrading to Ragel 6.1 on Mac OS X 10.5.2 Leopard.

Building

Note that in order to verify the signature on the downloaded archive you’ll need to have done some setup as described in "Verifying Ragel signatures".

wget http://www.cs.queensu.ca/~thurston/ragel/ragel-6.1.tar.gz \
     http://www.cs.queensu.ca/~thurston/ragel/ragel-6.1.tar.gz.asc \
     http://www.cs.queensu.ca/~thurston/ragel/ragel-guide-6.1.pdf
gpg --verify ragel-6.1.tar.gz.asc ragel-6.1.tar.gz
tar xzvf ragel-6.1.tar.gz
cd ragel-6.1
./configure
make

Testing

cd tests
./runtests

Just as in the previous upgrade (see "Upgrading from Ragel 5.24 to 6.0 on Mac OS X 10.5.1 Leopard"), there is a minor glitch that prevents the test suite from running on Leopard (although it worked fine on Tiger). The solution is to make a change to the cppscan1.h file in the tests directory:

--- cppscan1.h.old	2008-03-27 00:55:51.000000000 +0100
+++ cppscan1.h	2008-03-27 00:56:06.000000000 +0100
@@ -2,7 +2,7 @@
 [/tags/define #define] _CPPSCAN1_H

 [/tags/include #include] <iostream>
-#include <malloc.h>
+#include <malloc/malloc.h>
 [/tags/include #include] <string.h>

 using namespace std;

And then run the test suite again (with ./runtests) and it should pass fine.

Installing

Now we can proceed with the install:

cd ..
sudo make install

Testing with a real application

I wanted to try out Ragel 6.1 on an existing project to see if the generated code was any different. I chose to do this on my wikitext translator.

cd path/to/wikitext/src
rake clobber # blows away Ragel-generated files
rake         # builds everything and runs the spec suite

So all the specs passed, and the generated code was byte-for-byte identical, so evidently my machine didn’t exercise any the changes in 6.1.