[Mesa-dev] [PATCH mesa 1/2] docs: add meson cross compilation instructions

[Eric Engestrom]

Signed-off-by: Eric Engestrom <eric.engestrom at intel.com>
---
The 32-bit linux one is tested, but the other two are "I think this
should be right".
---
 docs/meson.html | 83 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)

diff --git a/docs/meson.html b/docs/meson.html
index 68f80d6ac42d6f48d359..baa1f0f327e99d86e9a5 100644
--- a/docs/meson.html
+++ b/docs/meson.html
@@ -16,6 +16,11 @@ <h1>The Mesa 3D Graphics Library</h1>
 
 <h1>Compilation and Installation using Meson</h1>
 
+<ul>
+  <li><a href="#basic">Basic Usage</a></li>
+  <li><a href="#cross-compilation">Cross-compilation and 32-bit builds</a></li>
+</ul>
+
 <h2 id="basic">1. Basic Usage</h2>
 
 <p><strong>The Meson build system is generally considered stable and ready
@@ -190,6 +195,84 @@ <h2 id="basic">1. Basic Usage</h2>
 </dd>
 </dl>
 
+<h2 id="cross-compilation">2. Cross-compilation and 32-bit builds</h2>
+
+<p><a href="https://mesonbuild.com/Cross-compilation.html">Meson supports
+cross-compilation</a> by specifying a number of binary paths and
+settings in a file and passing this file to <code>meson</code> or
+<code>meson configure</code> with the <code>--cross-file</code>
+parameter.</p>
+
+<p>This file can live at any location, but you can use the bare filename
+(without the folder path) if you put it in $XDG_DATA_HOME/meson/cross or
+~/.local/share/meson/cross</p>
+
+<p>Below are a few example of cross files, but keep in mind that you
+will likely have to alter them for your system.</p>
+
+<p>
+32-bit build on x86 linux:
+<pre>
+[binaries]
+c = '/usr/bin/gcc'
+cpp = '/usr/bin/g++'
+ar = '/usr/bin/ar'
+strip = '/usr/bin/strip'
+pkgconfig = '/usr/bin/pkg-config-32'
+llvm-config = '/usr/bin/llvm-config'
+
+[properties]
+c_args = ['-m32']
+c_link_args = ['-m32']
+cpp_args = ['-m32']
+cpp_link_args = ['-m32']
+
+[host_machine]
+system = 'linux'
+cpu_family = 'x86'
+cpu = 'i686'
+endian = 'little'
+</pre>
+</p>
+
+<p>
+64-bit build on ARM linux:
+<pre>
+[binaries]
+c = '/usr/bin/aarch64-linux-gnu-gcc'
+cpp = '/usr/bin/aarch64-linux-gnu-g++'
+ar = '/usr/bin/aarch64-linux-gnu-ar'
+strip = '/usr/bin/aarch64-linux-gnu-strip'
+pkgconfig = '/usr/bin/aarch64-linux-gnu-pkg-config'
+exe_wrapper = '/usr/bin/qemu-aarch64-static'
+
+[host_machine]
+system = 'linux'
+cpu_family = 'arm'
+cpu = 'aarch64'
+endian = 'little'
+</pre>
+</p>
+
+<p>
+64-bit build on x86 windows:
+<pre>
+[binaries]
+c = '/usr/bin/x86_64-w64-mingw32-gcc'
+cpp = '/usr/bin/x86_64-w64-mingw32-g++'
+ar = '/usr/bin/x86_64-w64-mingw32-ar'
+strip = '/usr/bin/x86_64-w64-mingw32-strip'
+pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
+exe_wrapper = 'wine'
+
+[host_machine]
+system = 'windows'
+cpu_family = 'x86_64'
+cpu = 'i686'
+endian = 'little'
+</pre>
+</p>
+
 </div>
 </body>
 </html>
-- 
Cheers,
  Eric