From mboxrd@z Thu Jan  1 00:00:00 1970
From: beckonsmorbid <beckonsmorbid@gmail.com>
Subject: Re: Bug: CUSTOM_ID property not used in LaTeX-Export [9.1.9
 (release_9.1.9-65-g5e4542 @ /usr/share/emacs/27.0.50/lisp/org/)]
Date: Fri, 6 Apr 2018 10:50:20 +0200
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To: emacs-orgmode@gnu.org

So I just searched the org sources and stumbled upon
org-latex-prefer-user-labels, which needs to be t for this to work in
newer emacs versions.
Sorry for the noise

On Fri, Apr 6, 2018 at 10:28 AM, beckonsmorbid <beckonsmorbid@gmail.com> wrote:
> Emacs  : GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.29)
>  of 2018-04-05
> Package: Org mode version 9.1.9 (release_9.1.9-65-g5e4542 @
> /usr/share/emacs/27.0.50/lisp/org/)
>
> ----------------------------------------------------------------------------------------------
> Hi,
>
> It seems the CUSTOM_ID property isn't being used in the
> Latex-export, for example this org file:
>
> #+BEGIN_SRC org
>   ,* foo
>     :PROPERTIES:
>     :CUSTOM_ID: sec:foo
>     :END:
>   ,* bar
>     :PROPERTIES:
>     :CUSTOM_ID: sec:bar
>     :END:
>   \ref{sec:foo}
>   \ref{sec:bar}
> #+END_SRC
>
> gets exported to this Latex code:
>
> #+BEGIN_SRC latex
> % Created 2018-04-06 Fr 10:19
> % Intended LaTeX compiler: pdflatex
> \documentclass[11pt]{article}
> \usepackage[utf8]{inputenc}
> \usepackage[T1]{fontenc}
> \usepackage{graphicx}
> \usepackage{grffile}
> \usepackage{longtable}
> \usepackage{wrapfig}
> \usepackage{rotating}
> \usepackage[normalem]{ulem}
> \usepackage{amsmath}
> \usepackage{textcomp}
> \usepackage{amssymb}
> \usepackage{capt-of}
> \usepackage{hyperref}
> \date{\today}
> \title{}
> \hypersetup{
>  pdfauthor={},
>  pdftitle={},
>  pdfkeywords={},
>  pdfsubject={},
>  pdfcreator={Emacs 27.0.50 (Org mode 9.1.9)},
>  pdflang={English}}
> \begin{document}
>
> \tableofcontents
>
> \section{foo}
> \label{sec:org6f6b527}
> \section{bar}
> \label{sec:org9cbe09f}
> \ref{sec:foo}
> \ref{sec:bar}
> \end{document}
> #+END_SRC
> which breaks the \ref-links.
> This is in the default config with emacs -Q.
>
> Thanks for your help and all the work on org,
> Simon