From 3f3a7e2ce0689e0c9b003c7804d35f51e9dcfe14 Mon Sep 17 00:00:00 2001
From: Gabriel Corona <gabriel.corona@loria.fr>
Date: Thu, 21 Apr 2016 14:42:39 +0200
Subject: [PATCH] [doc] Add documentation about compiling to 32bit on Linux
 64bit multiarch

---
 doc/doxygen/install.doc | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/doc/doxygen/install.doc b/doc/doxygen/install.doc
index 1e0ef4ec62..38eb09172f 100644
--- a/doc/doxygen/install.doc
+++ b/doc/doxygen/install.doc
@@ -382,4 +382,26 @@ computer.
 export LD_LIBRARY_PATH=/opt/simgrid/lib
 @endverbatim
 
+@subsection install_src_32 Compiling a 32 bit version
+
+On a multiarch x86_64 Linux, it should be possible to compile a 32 bit
+version of SimGrid with something like:
+
+@verbatim
+CFLAGS=-m32 \
+CXXFLAGS=-m32 \
+PKG_CONFIG_LIBDIR=/usr/lib/i386-linux-gnu/pkgconfig/ \
+cmake . \
+-DCMAKE_SYSTEM_PROCESSOR=i386 \
+-DCMAKE_Fortran_COMPILE=/some/path/to/i686-linux-gnu-gfortran \
+-DGFORTRAN_EXE=/some/path/to/i686-linux-gnu-gfortran
+@endverbatim
+
+where i686-linux-gnu-gfortran can be implemented as:
+
+@verbatim
+#!/bin/sh
+exec gfortran -m32 "$@"
+@endverbatim
+
 */
-- 
2.20.1