From: Carsten Dominik <carsten.dominik@gmail.com>
To: Holger Hoefling <hhoeflin@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: Not overwriting unchanged source code files when tangling
Date: Fri, 18 Nov 2011 18:02:12 +0100 [thread overview]
Message-ID: <D8B8E4A0-4476-4949-A738-5E0BF16A8146@gmail.com> (raw)
In-Reply-To: <CAFDswJtsPiuF3Ofb+QDvRWDtZSJ6zqvx2PfA2tXOC6PA=5qGHQ@mail.gmail.com>
On 18.11.2011, at 14:17, Holger Hoefling wrote:
> Hi,
>
> I have a problem/request for org-mode and was looking for help. I am using org-mode to write source code files and tangle them out. I want to compile them using make. My problem now is that org-mode overwrites the old files every time I tangle them out, therefore also updating the time stamp - even if nothing has changed. Subsequently, when I run make, everything gets recompiled, not just the changed source code files as all time stamps have changed.
>
> Is there an option for org-mode to only overwrite source code files that get tangled out if they have truly changed?
How about changing the make file so that the dependence is on the Org file, not on the source file?
You could then arrange for make to call emacs in batch-mode to tangle the source file and then compile it?
Something along the lines of.... (untested, and probably wrong in this way...)
file.o: somefile.org
emacs -batch --eval '(org-babel-tangle-file "somefile.org")'
cc file.o ....
- Carsten
next prev parent reply other threads:[~2011-11-18 17:23 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-18 13:17 Not overwriting unchanged source code files when tangling Holger Hoefling
2011-11-18 14:23 ` Brian Wightman
2011-11-18 16:46 ` Tom Prince
2011-11-18 17:14 ` Brian Wightman
2011-11-18 14:27 ` Sebastien Vauban
2011-11-18 17:02 ` Carsten Dominik [this message]
2011-11-18 17:28 ` Brian Wightman
2011-11-18 19:42 ` Eric Schulte
2011-11-18 20:10 ` Achim Gratz
2011-11-18 20:24 ` Eric Schulte
2011-11-19 0:49 ` Holger Hoefling
2011-11-18 19:01 ` Holger Hoefling
2011-11-18 19:32 ` Nick Dokos
2011-11-19 0:51 ` Holger Hoefling
2011-11-19 4:00 ` Nick Dokos
2011-11-19 6:58 ` Holger Hoefling
2011-11-19 18:32 ` Holger Hoefling
2011-11-22 21:17 ` Allen S. Rout
2011-11-22 21:43 ` Nick Dokos
2011-11-19 18:06 ` cberry
2011-11-18 19:51 ` Achim Gratz
-- strict thread matches above, loose matches on Subject: below --
2011-11-19 15:31 Rustom Mody
2011-11-19 15:51 ` Rustom Mody
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