From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rustom Mody Subject: Re: Not overwriting unchanged source code files when tangling Date: Sat, 19 Nov 2011 21:21:50 +0530 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from eggs.gnu.org ([140.186.70.92]:33985) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RRnCq-0004qi-Rb for emacs-orgmode@gnu.org; Sat, 19 Nov 2011 10:51:54 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RRnCp-0007Q0-KG for emacs-orgmode@gnu.org; Sat, 19 Nov 2011 10:51:52 -0500 Received: from mail-yw0-f41.google.com ([209.85.213.41]:44857) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RRnCp-0007Pt-Hr for emacs-orgmode@gnu.org; Sat, 19 Nov 2011 10:51:51 -0500 Received: by ywp17 with SMTP id 17so4268014ywp.0 for ; Sat, 19 Nov 2011 07:51:51 -0800 (PST) In-Reply-To: List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: emacs-orgmode Sorry for the earlier mail: Send got pressed on a half-cooked mail :-) Heres a cleanup. -------------------------------------------------------------------------- Build-tools like scons rethink make's "older timestamp => rebuild" model. You may want to look at one such. >From http://www.scons.org/architecture/index.html > (S)Cons decides if a file was out-of-date by using MD5 checksums of the contents of > files, not timestamps. SCons also comes to mind because you are using make for R not (traditional) programming [Again from the above link] > Most of the build tools just mentioned were written by programmers and for > programmers. .... > (SCons arose from a) > design contest with the express goal of producing a set of next-generation utilities, > including a build tool, that would be accessible not only to programmers but also to > computer users such as physical scientists. [Disclaimer: Ive not tried Scons myself]