mesa upgrade fails due to "missing" libxml2

[aeronova]

Hello,

I'm using Mac 10.6.7, and I had the following error when I update the mesa library.

mklib: Making Darwin shared library:  libGL.1.2.dylib
mklib: Installing libGL.1.2.dylib libGL.1.dylib libGL.dylib in ../../../lib
python -t -O -O main/es_generator.py -S main/APIspec.xml -V GLES1.1 > main/api_exec_es1.c
python -t -O -O main/es_generator.py -S main/APIspec.xml -V GLES2.0 > main/api_exec_es2.c
Traceback (most recent call last):
  File "main/es_generator.py", line 26, in <module>
    import APIspecutil as apiutil
  File "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/Mesa-7.10.2/src/mesa/main/APIspecutil.py", line 28, in <module>
    import libxml2
ImportError: No module named libxml2
Traceback (most recent call last):
  File "main/es_generator.py", line 26, in <module>
    import APIspecutil as apiutil
  File "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/Mesa-7.10.2/src/mesa/main/APIspecutil.py", line 28, in <module>
    import libxml2
ImportError: No module named libxml2
make[2]: *** No rule to make target `depend', needed by `default'.  Stop.
make[1]: *** [subdirs] Error 1
make: *** [default] Error 1
shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/Mesa-7.10.2" && /usr/bin/make -j2 default INSTALL_DIR=/opt/local RC_CFLAGS="-arch x86_64" CC="/usr/bin/gcc-4.2 " CXX="/usr/bin/g++-4.2 " " returned error 2
Error: Target org.macports.build returned: shell command failed (see log for details)
Warning: the following items did not execute (for mesa): org.macports.destroot org.macports.build
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: Unable to upgrade port: 1
To report a bug, see <http://guide.macports.org/#project.tickets>

The error says there is no libxml2, but I think I have it installed from the following check:

$ port installed | grep libxml2
  libxml2 @2.7.8_0 (active)
  py26-libxml2 @2.6.21_0 (active)
  py27-libxml2 @2.6.21_0 (active)

Please help me with this problem. Thank you in adv.

11. Lee.

[ryandesign (Ryan Carsten Schmidt)]

Which version of python is selected (with "port select python")?

[michelle.lynn.gill@…]

Same issue here. I'm using python 2.6.

[ryandesign (Ryan Carsten Schmidt)]

Replying to michelle.lynn.gill@…:

Same issue here. I'm using python 2.6.

MacPorts python 2.6 or Apple python 2.6? And do you have py26-libxml2 installed?

[jendave@…]

The build fails for me as well

:info:build /usr/bin/gcc-4.2  -c -I../../../include -I../../../src/mapi -I../../../src/mesa -ggdb3 -Os -Wall -Wmissing-prototypes -std=c99 -ffast-math -fno-strict-aliasing -I/opt/local/include -I/opt/local/include  -fPIC -arch x86_64 -arch i386  -D_DARWIN_C_SOURCE -DPTHREADS -D_GNU_SOURCE -DGLX_ALIAS_UNSUPPORTED -DGLX_DIRECT_RENDERING -DGLX_USE_APPLEGL -DMAPI_GLAPI_CURRENT ../../../src/mapi/mapi/u_thread.c -o u_thread.o
:info:build mklib: Making Darwin static library:  libglapi.a
:info:build ar: creating archive libglapi.a
:info:build /usr/bin/ranlib: archive library: libglapi.a will be fat and ar(1) will not be able to operate on it
:info:build python -t -O -O ../../../src/mapi/mapi/mapi_abi.py \
:info:build             --printer vgapi --mode lib vgapi.csv > vgapi_tmp.h
:info:build   File "../../../src/mapi/mapi/mapi_abi.py", line 398
:info:build     print self.c_header()
:info:build              ^
:info:build SyntaxError: invalid syntax
:info:build make[2]: *** No rule to make target `depend', needed by `default'.  Stop.
:info:build make[1]: *** [subdirs] Error 1
:info:build make: *** [default] Error 1
:info:build shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/Mesa-7.10.2" && /usr/bin/make -j2 default INSTALL_DIR=/opt/local RC_CFLAGS="-arch x86_64 -arch i386" CC="/usr/bin/gcc-4.2 " CXX="/usr/bin/g++-4.2 " " returned error 2

[jeremyhu (Jeremy Huddleston Sequoia)]

jendave: Your issue is completely unrelated to this one. Please file a new bug report including the full build log

[dershow]

I can't update on a dual G4 PPC with 10.5.8. I get the error log that is attached. But, I tried the upgrade on a dual G5 machine, also with 10.5.8, and that upgrade succeeded. I also don't have a problem on an Intel machine with 10.6.

[sewebster@…]

I have this problem too.

[sewebster@…]

Cc Me!

[jeremyhu (Jeremy Huddleston Sequoia)]

Rather than everyone "me too"ing, could someone please answer Ryan's question above about which python you have installed and selected. Run the following:

port installed | grep libxml2
port select python

[sewebster@…]

[/Users/swebster@skadi]$ port installed | grep libxml2
  libxml2 @2.7.8_0+universal (active)
  py26-libxml2 @2.6.21_0 (active)
  py27-libxml2 @2.6.21_0 (active)
[/Users/swebster@skadi]$  port select python
Available versions for python:
	none (active)
	python25-apple
	python26
	python26-apple
	python27
[/Users/swebster@skadi]$ 

[dershow]

The one that fails reports:

$ port installed | grep libxml2
  libxml2 @2.7.8_0 (active)
  py25-libxml2 @2.6.21_1 (active)
  py26-libxml2 @2.6.21_0 (active)
  py27-libxml2 @2.6.21_0 (active)
$ port select python
Available versions for python:
	none
	python25
	python25-apple (active)
	python26
	python27

While the PPC computer that does update reports:

$ port installed | grep libxml2
  libxml2 @2.7.8_0 (active)
  py25-libxml2 @2.6.21_1 (active)
  py26-libxml2 @2.6.21_0 (active)
  py27-libxml2 @2.6.21_0 (active)
$ port select python
Available versions for python:
	none
	python25 (active)
	python25-apple
	python26
	python27

[ryandesign (Ryan Carsten Schmidt)]

Ok, so what's been shown above confirms that mesa needs a python with the libxml2 module. Apple's presumably doesn't come with it. So mesa needs a dependency on a py*-libxml2 port, and needs to use the corresponding versioned python binary (and not just use "python" as it does currently).

[sewebster@…]

yeah it works once I just select python27

[afb@…]

Replying to ryandesign@…:

Ok, so what's been shown above confirms that mesa needs a python with the libxml2 module. Apple's presumably doesn't come with it.

Apple disables python in their libxml2, unless you rebuild it:

Extra_Configure_Flags = --enable-static=no --with-python=no --with-iconv=no --with-icu=yes

10.6: ​http://opensource.apple.com/source/libxml2/libxml2-21.11.1/ 10.5: ​http://opensource.apple.com/source/libxml2/libxml2-17.7.8/

[gallafent]

So just to help others who find this bug before it's fixed, to get things working you need to install and select a macports version of python (not an apple one):

$ port install python26
$ port select python python26
$ port install py26-libxml2

… then the mesa build will succeed.

[michelle.lynn.gill@…]

A quick note that "port select python python26" MUST be run even if python26 is the only python installed from MacPorts AND it is set as the default via $PYTHONHOME in a .bashrc/.zshrc:

 % port installed python26
The following ports are currently installed:
  python26 @2.6.6_1+universal
  python26 @2.6.6_2+universal
  python26 @2.6.6_3+universal (active)
% port installed py26-libxml2
The following ports are currently installed:
  py26-libxml2 @2.6.21_0 (active)
% which python
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/python
% echo $PYTHONHOME
/opt/local/Library/Frameworks/Python.framework/Versions/2.6
% sudo echo $PYTHONHOME
/opt/local/Library/Frameworks/Python.framework/Versions/2.6

Despite having met all requirements except the seemingly arbitrary "python select," my mesa installation was failing. After running the command, it worked.

[jeremyhu (Jeremy Huddleston Sequoia)]

r79299 should fix this problem. Please confirm.

[jeremyhu (Jeremy Huddleston Sequoia)]

Closing since someone confirmed this fix via email. Thanks.