From: Eric Schulte <eric.schulte@gmx.com>
To: Daimrod <daimrod@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: URGENT Org Babel C/C++
Date: Sat, 31 Mar 2012 11:47:52 -0400 [thread overview]
Message-ID: <87vclkojpz.fsf_-_@gmx.com> (raw)
In-Reply-To: <87zkb0qqj0.fsf@gmail.com> (daimrod@gmail.com's message of "Thu, 29 Mar 2012 01:01:07 +0200")
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Daimrod <daimrod@gmail.com> writes:
> 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.
>
I've reverted this commit, I should have been more cautious in its
application. I've reverted this commit in both the hotfix-7.8.06 branch
and the master branch.
>
> 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 don't believe the above statement is true, for example the following
code block evaluates its header argument on export.
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Example of code eval during export.
#+headers: :exports results
#+begin_src emacs-lisp :var this=(file-name-directory (buffer-file-name))
this
#+end_src
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Best,
--
Eric Schulte
http://cs.unm.edu/~eschulte/
prev parent reply other threads:[~2012-03-31 17:48 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
2012-03-30 11:17 ` Daimrod
2012-03-31 15:47 ` Eric Schulte [this message]
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