[OS X Emacs] Re: Re: Can't Make Doc-View Work

[John Mark Swafford]

On Fri, Mar 12, 2010 at 7:26 PM, Peter Dyballa <Peter_Dyballa at web.de> wrote:

>
> Am 12.03.2010 um 00:37 schrieb John Mark Swafford:
>
>
>  ./configure --with-gif=no --with-ns
>> make
>> make install
>> sudo cp -r nextstep/Emacs.app /Applications/Emacs.app
>>
>
> The last step has possibly three faults:
>
>  1) the sudo
>  2) the 'cp -r'
>  3) the '/Applications/Emacs.app' target
>
> Final step 1 is *not* needed. When you're allowed to sudo then you're
> automatically, I think, member of the group admin and therefore have write
> privileges in /Applications. I am member and I can easily drag things into
> /Applications or remove other things from there.
>
> Final step 2 looks like a command which might work correctly. I have my
> doubts, based on heuristics gained somewhen in the last, maybe, ten years.
> I'd drag Emacs.app to /Applications:
>
>        open nextstep
>        open /Applications
>        « delete old Emacs.app in Applications »
>        « drag Emacs.app from nextstep to Applications »
>
> Final step 3 is definitely wrong! You can overwrite the old software,
> however this is the source for a cascade of faults. It's not guaranteed that
> old files are removed. It's not guaranteed that a file with the same name is
> moved into another sub-directory as it has happened in the new source, with
> the effect that now two files of different revision exist in Emacs'
> load-path.
>
> When you install the new version of an application then this "application
> bundle" has means to first move the old version into the trash can. Then it
> "installs" itself in /Applications. You have to mimic this on the command
> line, i.e., after 'make install' a '(sudo) rm -rf /Applications/Emacs.app'
> has to happen. Or just drag...
>
>
>  When I have a .tex document open, it says [(LaTeX ht Fill)] in the
>> mode-line.
>>
>
>
> The 'ht' snippet is definitely incorrect. Then the whole Emacs.app cannot
> be right.
>
>
Ok, I reinstalled Emacs according to Peter. Now the mode line in my main.tex
file simply says (LaTeX).

I also installed AUCTeX. I used the following to configure it (via Axel's
suggestion):

./configure
--with-emacs=/Applications/Emacs.app/Contents/MacOS/Emacs
--with-lispdir=/Applications/Emacs.app/Contents/Resources/site-lisp
--without-texmf-dir
make
sudo make install

Like before, I got rid of my customized .emacs file just in case anything in
it was causing an unexpected problem. My new .emacs looks like this:

(setenv "PATH"
    (concat
     "/usr/local/bin" ":"
     "/usr/local/sbin" ":"
     "/usr/local" ":"
     "/bin" ":"
     "/opt/local/bin" ":"
     "/opt/local/sbin" ":"
     "/usr/X11/bin" ":"
     "/usr/X11R6/bin"
     ))

(require 'tex-site)

;; Don't load the startup screen. It's obnoxious
(setq inhibit-startup-message t)
(setq inhibit-splash-screen t)

(load "auctex.el" nil t t)
(load "preview-latex.el" nil t t)

Without the setenv at the top, my Emacs can't find ANYTHING, not latex, not
dvips, not anything. I added the last parts to make sure Emacs was finding
AUCTeX and could load it properly. Next, I opened my main.tex file and
compiled it with LaTeX. This worked fine. When I pressed C-c C-c, Emacs
tried to open my file in xdvi. I can change this later, so I'm not worried
about that. However, when I try and use M-x preview-document (this comes
with the preview-latex.el packaged with AUCTeX, I think) I get this:

error in process sentinel: Searching for program: No such file or directory,
gs

This is probably my problem as to why DocView isn't working, but it doesn't
make much sense to me because gs is in the same directory as everything
else! Is there a way to set the path to gs somewhere else that I'm missing?

Also, I tried simply opening a .dvi and a .pdf file just to see what errors
I was given. When opening a .dvi I get the following:

No PNG support is available, or some conversion utility for dvi files is
missing.
File mode specification error: (wrong-type-argument stringp nil)

When opening a .pdf I get:

No PNG support is available, or some conversion utility for pdf files is
missing.
File mode specification error: (wrong-type-argument stringp nil)

This also makes me think Emacs isn't finding my gs, but when I run:

which gs

in an Emacs shell, it shows me the correct path. Has anyone else has issues
like this setting up their Emacs on OS X to work with DocView properly?

>
>
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