References to LaTeX equations using Doxygen - c

Question

I am currently documenting some advanced simulation tools using Doxygen. I would like to be able to refer to equations within the HTML documentation.
To illustrate the problem. Perform the following
doxygen -g Doxyfile
sed -i 's/^EXTRA_PACKAGES.*/EXTRA_PACKAGES = amsmath amsfonts/g' Doxyfile
sed -i 's/^LATEX_BATCHMODE.*/LATEX_BATCHMODE = YES/g' Doxyfile
You now have a Doxyfile, which can be used for a project containing formulas.
In the same directory put the following
sample.h:
/**
* #file sample.h
*/
/**
* #mainpage Some example
*
* Some complicated math:
* \f{equation}{\label{eq:1}
* p(\vec{r}_{0},t) = \ldots
* \f}
*/
/**
* The function computes the pressure based on \f$\ref{eq:1}\f$
*
* #param rho
* #param v
* #param r
* #param t
*
* #return
*/
int CalcPressure(float rho, float v[3], float r[3], float t);
Execute the following to generate LaTeX documentation.
doxygen Doxyfile
cd latex
make
A reference to equation (1.1) is put in the documentation for the CalcPressure function.
The HTML documentation on the other hand contains a '??' reference to the formula. Is it possible to tweak doxygen to run twice for the generation of formulas, such that the image created contains the reference '(1.1)' rather than '??'.
Another solution may also work. I know how to include references to functions in another LaTeX document by using the xr package, http://www.cheshirekow.com/wordpress/?p=335
I could use this procedure, if I could tell Doxygen to not delete the _formulas.aux file, rename the file and pass this as input using the xr package, but I have no idea of how to tell Doxygen not to delete temporary files.
I hope there is a solution for creating references to formulas. Help please

Answer 1

A partial answer. To remove the ?? from html, make the link only in latex
/**
* The function computes the pressure based on #latexonly\ref{eq:1}#endlatexonly
*/
But this way you won't get a link in html.

Answer 2

I managed to find a solution myself.
I created a script
Linux: latex2
#!/bin/bash
if [ $# -lt 1]; then
echo $0: usage: latex2 args
exit 1
fi
latex $*
latex $*
Windows: latex2.bat
#echo off
call latex %*
call latex %*
and changed the LATEX_CMD_NAME in Doxyfile to execute this script or actually use a definition set by CMake
Doxyfile.in
LATEX_CMD_NAME = #LATEX_CMD_NAME#
CMakeLists.txt
if (UNIX OR CYGWIN)
set( LATEX_CMD_NAME "${PROJECT_SOURCE_DIR}/bin/latex2")
else()
set( LATEX_CMD_NAME "${PROJECT_SOURCE_DIR}/bin/latex2.bat")
endif()