Re: Building on MinGW using MXE-built dependencies [WAS: Re: mxe-installer try 2]

[John W. Eaton]

On 06/12/2013 03:20 AM, Philip Nienhuis wrote:

> ...and that MinGW build (on WinXP 32b) ended in building postgres
> complaining about cpio, just like John D reported earlier. So that looks
> to be a consistent result. (BTW I changed the postgres configure option
> in postgres.mk into "--without-zlib" to get past the zlib error that
> J.D. reported as well)
>
> Just out of curiosity: why are postgres and libodbc required anyway?

I don't know that they are really needed.  Are they?  They were listed 
as dependencies of qt when I created my fork of MXE.  If they are not 
needed, then we should drop the dependencies and stop trying to build them.

> Same for llvm, if it isn't going to be used for the next stable release
> (as you suggested)? - llvm isn't called in octave.mk (no --enable-jit
> configure option.) Together these builds make up for around 15 % of
> total build time, so it should help speeding up this first stage of
> getting the native MinGW to succeed if we could (temporarily) avoid
> building them. Especially as multi-core builds don't work on native MinGW.

I fixed this.  MXE-Octave now has a simple configure script that accepts 
arguments like --enable-jit --with-system-gcc, --enable-64, and some 
others (use configure --help or look at the configure.ac file to see 
what's available).  This configure script is not meant to check for a 
lot of things.  It's just that I was getting tired of editing the 
Makefile by hand.

When you check out mxe-octave from hg now, you'll need to run

  autoconf
  ./configure ...  ## out of tree builds are not supported yet
  make JOBS=N

Using configure without any arguments sets up the default build as 
before, cross compiling for mingw.

I also added a dist target to the Makefile, so we can create and 
distribute mxe-octave-VERSION.tar.gz files instead of requiring 
mercurial to check out the sources.  To keep the dist target working 
properly, you have to edit dist-files.mk if you add or remove files from 
MXE-Octave.

jwe