Dear all, This message is only applicable/of interest to people who build the RDKit themselves. If you use RDKit binaries that someone else builds, you can ignore this message. If you build the RDKit yourself, please read the message and let me know if the problem I describe affects you.
I've made a lot of changes in the RDKit code base over the last couple of weeks that improve the stability and/or speed of the code. I'll post a list of those in the near future. Yesterday I discovered that some changes I made to the SMILES, SMARTS, and SLN parsers will cause problems on systems that have an ancient version of flex installed. Specifically: if your version of flex is something like 2.5.4 (as opposed to something like 2.5.33, 2.5.34, etc.), you will no longer be able to build the RDKit as it's currently setup in svn. Given that v2.5.4 of flex dates from 1997 and that the newer versions have been out since 2006, and that the changes I made are actually quite useful (aside from cleaning up the code, they allow the SMILES/SMARTS parsing to work in a multi-threaded environment), I'd rather not undo these changes. I think there are ways of working around the problem, but before investigating them too seriously, I'd like to find out how many people are actually affected. So, if you build the RDKit yourself, please let me know if your system has an ancient version of flex installed and if it is a problem for you to install a more recent one. You can test your flex version as follows: % flex -V If you're interested, the changes in question are mostly in rev1380: http://rdkit.svn.sourceforge.net/viewvc/rdkit?view=rev&revision=1380 Thanks for the feedback, -greg ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Rdkit-discuss mailing list Rdkit-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rdkit-discuss
