On Wed, Jun 5, 2013 at 9:11 AM, Frank Palazzolo <[email protected]>wrote:
>
> So, I've done some experimenting with an OFDM modem implementation in
> Octave. I still think the idea has a lot of promise, so and I've decided
> it's time to try to build codec2 and FreeDV.
>
> Codec2-dev was no big deal, as it has no dependancies. I didn't have
> trouble getting the mingw/MSYS toolchain going. For FreeDV, I spent a lot
> of time bringing in each dependant package one at a time and trying to
> build or integrate them. I ended up getting surprised and stuck with ctb,
> since it seems to not want to build in the the mingw environment, due to
> slash conventions in the makefile. (even if it is ok on Linux). Has anyone
> made this work on mingw?
>
For codec2 did you use the existing autotools makefile or did you try my
cmake based build? Just curious.
You can try the cmake based build for fdmdv2 and try the USE_STATIC_<DEP>
options. They have only been tested on linux though so some or all are
guaranteed to fail but I need the feedback to make improvements.
The problem with libctb is that it only has pre-generated makefiles (no
configure) and makes some bad assumptions although there are several
makefiles in the build directory and one *might* work.
I submitted a cmake based build upstream and it was well received but I
don't know when or if a new release will be made using it. In the meantime
I can create a tarball of the source with my cmake config and make it
available if you like[2]. It has been tested with mingw under a
cross-compile environment in Fedora linux. I also have an unofficial
installer for FreeDV which includes all dependencies (including wxWidgets
2.9.4) but it sounds like you're going to be playing with the source so
that may not be the best option.
Just in case you (or someone else reading this) doesn't have a lot of
experience with cmake, it is always recommended (but not always
required/enforced) to do an out of source build. If you haven't already go
and download cmake[1] and install it. You can add it to your path and run
the command line version from mingw or use the GUI which will make changing
defaults easier. The README.cmake in fdmdv2 shows a command line example.
> Now I've come to realize that maybe I should have started with cmake.
> Will that make it all easier? Does the cmake build work on mingw ok?
>
Sorry, should have read this first.... YES IT DOES :) One thing you may run
into using MSYS with MinGW is that it's going to want to install things in
typical *nix fashion (/usr/...) instead of the Windows way (C:\Program
Files\...) So you may need to experiment with CMAKE_INSTALL_PREFIX.
This may be blasphemy, but when all is said and done, I am tempted to put
> together a set of project files for devstudio 2010 and binaries for
> everything but codec2 and freedv. I think this would make it a lot easier
> for developers on windows to get their feet wet without going through a
> long startup process. Nothing kills incentive like having to spend a bunch
> of time building third party stuff...
>
Some of the dependencies may provide prebuilt windows binaries if you look
hard enough... Can't tell you what to do here, I'm a Fedora Linux packager
not a programmer so I know just enough to be dangerous but I believe
mingw/gcc can handle importing libraries created by MSVC and derivatives
but perhaps someone on the list knows for sure.
The dependencies are a problem as they are with any project but if you want
to experiment building things yourself then I guess you have to sign
yourself up for dealing with them :)
Richard
KF5OIM
[1] http://www.cmake.org/cmake/resources/software.html
[2] https://dl.dropboxusercontent.com/u/34775202/libctb-0.16.tar.gz
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