Autoconf 2.69 and mingw

Rempel, Cynthia cynt6007 at
Sat Mar 23 00:31:37 UTC 2013

Hi Chris Johns,

Using Cygwin sounds like a great idea! A quick look at

Indicated some pretty recentish versions of the Autotools (2.69, 1.12.5)... and the link below looks like a tutorial on packaging for Cygwin

If it's feasible, for good 'product placement' we may eventually want to the packages in

Although, we'll have to update the wiki to reflect the move from minGW to Cygwin...

Cynthia Rempel
From: Chris Johns [chrisj at]
Sent: Friday, March 22, 2013 2:50 PM
To: Rempel, Cynthia
Cc: Thomas Dörfler; rtems-devel at
Subject: Re: Autoconf 2.69 and mingw

Rempel, Cynthia wrote:
> Does the source-builder work on minGW? This might be a question for Chris Johns...

Yes and no. I am working on support. I hit this problem ...

This happens after the building phase finishes and things are being
cleaned up. The response in the ticket was disappointing and I am
considering my options. MinGW as a project has lots of life, how-ever
ignoring or burying a bug of this nature is not endearing. MSYS2 has
been on the table for years and not a suitable resolution.

> On Ubuntu it can build the auto-tools, expat (don't know why it's needed), and all the build-tools.

Yes building from source using the Source Builder is a suitable
solution. You get an autoconf and automake matched to your environment.

Expat is needed to build gdb. GDB has the ability to manage XML register
definitions for variants of an architecture. A GDB remote stub/server
can give an arch specific gdb executable a specific register set for a
specific variant of a processor you are using with out the need to patch
gdb. It is a nice feature.

> If it doesn't, we could add that to the "wish-list"

On the wish list and being worked on.

I am looking for a suitable solution to my delete problem. There are
also other problems, namely the -j option with make when Python threads
are running cause problems in MSYS so parallel building is currently

The solutions I have in mind, is to use Python or something other than
'rm' to delete the source tree or look at using a minimal Cygwin shell
set up and to support cross-compiling the RTEMS tools. I am not
interested in Cygwin specific RTEMS tool sets only native Windows tool
sets. Cygwin is a long path to take because I need to create and test
it, how-ever it fixes the parallel build issue and will make building


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