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From: Michael Hannon <jm_hannon@yahoo.com>
To: Daimrod <daimrod@gmail.com>,
	"emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: Org Babel C/C++
Date: Wed, 28 Mar 2012 18:34:28 -0700 (PDT)	[thread overview]
Message-ID: <1332984868.16913.YahooMailNeo@web161902.mail.bf1.yahoo.com> (raw)
In-Reply-To: <87zkb0qqj0.fsf@gmail.com>

On Wednesday, March 28, 2012 at 4:01 PM Daimrod wrote:

> Eric Schulte <eric.schulte@gmx.com> writes:
>
>> Applied, Thanks!
>>
>> Daimrod <daimrod@gmail.com> writes:
>>
>>> Hi,
>>>
>>> I've made a small patch to ob-C.el so it now includes the current
>>> directory to the list of directories to be searched for header files.
>>> Without this, I cannot include a local header file because the
>>> compilation happens in /tmp and thus gcc or g++ doesn't search for
>>> header files in the directory I currently work.
>>>
>>> diff --git a/lisp/ob-C.el b/lisp/ob-C.el
>>> index f1525aa..4f33fc4 100644
>>> --- a/lisp/ob-C.el
>>> +++ b/lisp/ob-C.el
>>> @@ -96,15 +96,14 @@ or `org-babel-execute:C++'."
>>>         (progn
>>>           (with-temp-file tmp-src-file (insert full-body))
>>>           (org-babel-eval
>>> -        (format "%s -o %s %s %s -I
> \"%s\""
>>> +        (format "%s -o %s %s %s"
>>>               (cond
>>>                 ((equal org-babel-c-variant 'c)
> org-babel-C-compiler)
>>>                 ((equal org-babel-c-variant 'cpp)
> org-babel-C++-compiler))
>>>               (org-babel-process-file-name tmp-bin-file)
>>>               (mapconcat 'identity
>>>                   (if (listp flags) flags (list flags)) " ")
>>> -            (org-babel-process-file-name tmp-src-file)
>>> -            (file-name-directory (expand-file-name
> (buffer-file-name)))) ""))))
>>> +            (org-babel-process-file-name tmp-src-file))
> ""))))
>>>       ((lambda (results)
>>>         (org-babel-reassemble-table
>>>       (if (member "vector" (cdr (assoc :result-params
> params)))
>
> Hum, I'm quite embarrassed, this doesn't work when the block is executed
> during an export. I didn't track it down yet, but (buffer-file-name)
> returns nil during the export probably because the buffer changes.
>
> A workaround would be to use the :flags header argument though it's a
> bit tedious because it doesn't seem possible to eval elisp during the
> export.
>
> i.e.
>
> #+BEGIN_SRC cpp :flags -I (file-name-directory (buffer-file-name))
> ...
> #+END_SRC
>

I ran into this problem a few months ago.  I don't have the elisp skills to
patch Org mode, but I found something that worked for me:

    http://article.gmane.org/gmane.emacs.orgmode/49356/

-- Mike

  reply	other threads:[~2012-03-29  1:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-23 18:12 Org Babel C/C++ Daimrod
2012-03-26 11:39 ` Eric Schulte
2012-03-28 23:01   ` Daimrod
2012-03-29  1:34     ` Michael Hannon [this message]
2012-03-30 11:17       ` Daimrod
2012-03-31 15:47     ` URGENT " Eric Schulte

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