mesa @7.10.2 build error with python 3

[ericl54291@…]

I am trying to install mesa on my iBook g4, PowerPC processor, running 10.5.8 leopard, with Xcode 3.1.4 installed. The terminal output is

--->  Building mesa
Error: Target org.macports.build returned: shell command failed
Log for mesa is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/main.log
Error: Status 1 encountered during processing.

[ericl54291@…]

main.log

[jeremyhu@…]

It builds fine for me with Leopard/G5

[kimuraw@…]

The same error was occurred on my Mac. This error was caused by incompatibility of "print" between python 2.x and 3.x.

  print "foo bar"  # 2.x => OK, 3.x => NG
  print("foo bar") # 2.x => OK, 3.x => OK

If `python' is 3.x, then "port install mesa" fails.

  % python --version
  Python 2.6.6
  % python_select -s
  python26
  % sudo port install mesa
  # => OK

  % python --version
  Python 3.1.2
  % python_select -s
  python31
  % sudo port install mesa 
  # => FAIL with the error of util/u_format_table.py

I made a patch to use apple's python (/usr/bin/python) in src/gallium/auxiliary/Makefile.

[kimuraw@…]

use `/usr/bin/python' in building

[kimuraw@…]

CC me!

[swordangel@…]

Why not patch the print statements instead?

[jeremyhu@…]

Can you give me an updated patch for this?

[jeremyhu@…]

#27550 also reporting python31 issues.

[jmr@…]

Replying to swordangel@…:

Why not patch the print statements instead?

Well I just found out why not. (It's a huge pain.)

Attached patch makes mesa build with either python 2.x or 3.x selected (tested with 2.6 and 3.1), and should be suitable for sending upstream.

[ryandesign@…]

Did this issue ever get resolved upstream?

[jeremyhu@…]

I'm pretty sure this is fixed in 7.10.2 ...

[jeremyhu@…]

ugg... no, it didn't ... any much of the patch no longer applies.

Now that we're actually able to use master, they'll probably be more receptive to a patch.

jmr, would you mind updating your patch to mesa master (and hopefully it'll apply to the 7.10 branch):

​http://cgit.freedesktop.org/mesa/mesa/

[jeremyhu@…]

r79299 should fix this by choosing python2

[jmr@…]

Checking the python version and running 2to3 as needed is probably a better approach for upstream. I'll see if I can throw together a patch if I have time.