From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Schulte Subject: Re: Problems running C code in org-mode under Windows Date: Tue, 27 Mar 2012 12:06:03 -0400 Message-ID: <87r4wec9lg.fsf@gmx.com> References: <40C7B1BFC291ED4E9D10436D07736A334702B60A32@EXMAIL7.haas.uc.berkeley.edu> <87bonikeaw.fsf@gmx.com> <40C7B1BFC291ED4E9D10436D07736A334702B60B3A@EXMAIL7.haas.uc.berkeley.edu> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([208.118.235.92]:39756) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCamx-0007WI-9g for emacs-orgmode@gnu.org; Tue, 27 Mar 2012 14:06:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SCamq-0002Bn-DR for emacs-orgmode@gnu.org; Tue, 27 Mar 2012 14:06:34 -0400 Received: from mailout-us.gmx.com ([74.208.5.67]:43410) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1SCamq-0002BO-7M for emacs-orgmode@gnu.org; Tue, 27 Mar 2012 14:06:28 -0400 In-Reply-To: <40C7B1BFC291ED4E9D10436D07736A334702B60B3A@EXMAIL7.haas.uc.berkeley.edu> (Richard Stanton's message of "Tue, 27 Mar 2012 10:25:42 -0700") 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: Richard Stanton Cc: "emacs-orgmode@gnu.org" Thanks for tracking down the source of this problem. Unfortunately this is beyond my abilities to address. It would be interesting to hear if others on this list are having issues compiling C code blocks on windows. To the extent that this appears to be a problem with the Emacs `call-process' and the cmdproxy executable maybe a bug report to Emacs would be appropriate. Best, Richard Stanton writes: > I've been tracing through, and a problem occurs when the compilation > gets run, which is at about line 155 in file ob-eval.el, inside > function org-babel-shell-command-on-region, where call-process region > is called. > > As far as I can see, at this point the command being called is > > C:/emacs/emacs-24.0.94/bin/cmdproxy -c "gcc -o \"c:/users/stanton[...]C-bin-10700opx\" \"c:/users/Stanton[...]C-src-10700bfr.c\"" > > (where [...] just means I deleted some more path information, but it's all valid). > > If I execute this exact command at the command line, the compilation > works fine, and creates an executable file C-bin-10700opx.exe (note > that gcc on Windows automatically adds the .exe extension if you omit > it). However, after running the call-process-region command in the .el > file, no executable file is produced, and error-file has the contents > > Access is denied > > Not sure why this should be, but the compilation is not happening. > > > > > >> -----Original Message----- >> From: Eric Schulte [mailto:eric.schulte@gmx.com] >> Sent: Monday, March 26, 2012 6:45 PM >> To: Richard Stanton >> Cc: emacs-orgmode@gnu.org >> Subject: Re: [O] Problems running C code in org-mode under Windows >> >> Richard Stanton writes: >> >> > Here's a simple org file that's supposed to run some C code and print the >> result: >> > >> > ---------------------- >> > >> > * Sample C code >> > >> > #+name: RHS.c >> > #+begin_src C :noweb yes :tangle RHS.c >> > #include >> > <
> >> > #+end_src >> > >> > #+name: main >> > #+begin_src C >> > int main(int argc, char *argv[]) { >> > int lst[argc-1]; >> > int i; >> > for(i=1;i> > lst[i-1] = atoi(argv[i]); >> > for(i=1;i> > printf("%d ", lst[i-1] + 1); >> > printf("\n"); >> > } >> > #+end_src >> > >> > #+call: RHS.c[:cmdline 8 7 6]() >> > >> > ------------------------- >> > >> > It works fine on my Mac, producing the result: >> > >> > #+RESULTS: RHS.c[:cmdline 8 7 6]() >> > : 9 8 7 >> > >> > On my PC, however, running Windows Vista, the output is blank and >> > there's a *Org-babel-error-output* buffer containing the message >> > >> > Access is denied. >> > 'c:/Users/stanton/AppData/Local/Temp/babel-11948MQP/C-bin-11948Nln' >> is >> > not recognized as an internal or external command, operable program or >> > batch file. >> > >> > There is a file called C-bin-11948Nln in that directory, but it has >> > length 0, suggesting that something is going wrong in the compilation >> > process. However, I can also see potential problems with the fact that >> > the file name does not end in .exe, so the Windows shell is not easily >> > going to recognize it as an executable anyway. >> > >> > Does anyone have this running OK under Windows? Alternatively, how can >> > I track down what's going wrong in more detail? >> > >> > Thanks. >> > >> > Richard Stanton >> > >> >> I don't have access to a windows machine so I can't debug this myself, but I >> would suggest stepping through the execution of the `org-babel-C-execute' >> function using edebug. This is done by first placing the cursor inside the `org- >> babel-C-execute' function, evaluating the function with C-u C-M-x, then >> executing a C code block. This should give you some idea of what is going >> wrong where. >> >> Best, >> >> -- >> Eric Schulte >> http://cs.unm.edu/~eschulte/ -- Eric Schulte http://cs.unm.edu/~eschulte/