On Fri, Aug 23, 2013 at 8:14 AM, Matt Terry matt.te...@gmail.com wrote:
I'm banging away at installing MPL on top of python.org's python.
This is why binary installers are good idea!
the libfreetype/freetype issue.
yeah, that's kind of uglyand where is doesn't just work for me...
1) install libpng[1] and freetype[2] from source
libpng and freetype are different, though install from source may be
the way to go:
libpng is there, but is not properly installed, I'm not sure it's got
the header for the same version as the lib, and libpng-config is
either not there or not for the right version or somethign ugly. It
look, form messages at build time, that someone has hacked some code
into the MPL build that figures all that out, but for other stuff I'm
doing, I just punt and build libpng -- that's pretty straighforward,
at least. But teh solution in the MPL code now seems to work.
2) install XQuartz[3] and twiddle /opt/X11, /usr/X11 (per Russell's
directions[4]) so MPL finds XQuartz's libpng/freetype
I _think_ that OS-X now ships with X11, which has freetype (though
installed weirdly once again...) we certainly should NOT expect people
to install anything big to build MPL, and binaries should not depend
on anything not shipped by Apple by default.
According to Russell, you do need to install something, so I think that's out.
4) create the MPL binary installer and use that
That's what most people should do -- but one of us needs to build it.
Option 1 seems simple-est, but installing freetype requires more than
./configure make sudo make install.
darn. But hopefully we can figure it out.
Option 4: This would require some input from whoever (Gohlke?, Owen?) makes
the binary installers.
I think Russell has been doing it for MPL lately.
My thoughts:
We want to support two user-bases:
1) folks that don't mind a little command line work, and probably need
other scientific libs, etc anyway, an want an MPL that runs on their
machine:
- these folks should use homebrew or macports to build the
dependencies (or even hand-compile them). Ideally we have setup.py
that will find those libs, and test to see that the builds work once
in a while.
2) folks that just want to use it and/or want a binary they can
re-distribute via py2app, etc.
- for these folks, we need to provide binaries. These binaries should:
1) Match the python.org python builds. (probably only the Intel ones now...)
2) statically link the non-sytem libs
This has been done for a while, off and on, most recently by Russell, AFAIK.
But this is not a problem unique to MPL. All sorts of python packages
need this, and only some of the package maintainers do it (well).
Also, a bunch of packages require the same dependencies (i.e. PIL and
MPL both need png and freetype)
So, rather than re-inventing the wheel over and over again, It would
be great to have a central repository where we can develop build
scripts, etc that share an infrustructure for building these binaries.
I've started one:
https://github.com/MacPython/mac-builds
there is not much there, only a couple things I'm working on at the
moment (netCDF4, which is of interest to scipy folks, and py_gd, which
is my own simple drawing lib, that no one else uses (yet?)
If anyone wants to join the project let me know -- if I know you from
your work with this community, I'll gladly add you.
I'm using the gattai build system:
(https://sourceforge.net/projects/gattai/). I decided to do that, as I
was sick of re-writing essentially the same build scripts, and I kept
adding features to mine that would have resulted in re-implementing
gattai anyway. I've been hacking at gattai, and its author is quite
open to moving it forward.
That being said, there is no reason that we need to use the same build
system -- we could easily have custom build scripts for a project, and
still have it share the dependencies.
I was planning on getting it all further along before announcing the
project and looking for help, but since is came up...
-Chris
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