Wednesday, July 11, 2012

How to Build ZeroMQ (and Python binding) on AIX

Okay, so I may be stupid. I'm trying to run a Python script on an AIX box. In order to run it, I need a ZeroMQ (see http://zeromq.org). So, I'm trying to compile the zmq library using the standard compile-link-run thing.

BTW, this is AIX 6.1 using the gcc compiler [ TO START WITH ]

First, I had to get the sysadmins to install gcc and g++. then, I kept getting the error:

...
checking whether we are using clang C compiler... no
checking whether we are using gcc >= 4 C compiler... yes
checking whether the C++ compiler works... no
configure: error: Unable to find a working C++ compiler

Ug. Turns out, I didn't have libm installed. Some sysadmin time playing with puppet and NIM later, I have it. Now, I see:

...
checking alloca.h presence... yes
checking for alloca.h... yes
checking whether SOCK_CLOEXEC is supported... no
configure: creating ./config.status
./config.status: line 765: print: command not found
./config.status: line 765: print: command not found
./config.status: line 765: print: command not found
./config.status: line 765: print: command not found
... (times 200 or so)

Ah, fun with vi. Not vim, which tells you line numbers, just vi. Because IBM doesn't know from modern. So, I look up line number and find it's colon-number for go-to-line-number.

I look in the config.status line 765 (with :765), and I see it's referring to $ECHO shell var, I look for 'print' and find $ECHO is defined as:

...
pic_mode='default'
enable_fast_install='yes'
SHELL='/opt/freeware/bin/bash'
ECHO='print -r --'
host_alias=''
host='powerpc-ibm-aix6.1.0.0'
...

ECHO is 'print -r --' ????? Where did that come from?

So, I tried again, doing export ECHO=/usr/bin/echo first. No go. Next, tried with:

ECHO=/usr/bin/echo ./configure --prefix=/destination/directory

No go again.

-- time passes --

to fix this:

  1. in your ~/.profile or .bashrc, define:
    CONFIG_SHELL=/usr/bin/bash
  2. Then, invoke ./configure as follows:
    ${CONFIG_SHELL} ./configure --prefix=...

Continuing, I found out I had to install:

  • gnu automake
  • gnu libtool
  • gnu M4

Now, I'm stuck with:

[myuser@mybox ~/making/zeromq-2.2.0]: make
Making all in src
make[1]: Entering directory `/home/myuser/making/zeromq-2.2.0/src'
make  all-am
make[2]: Entering directory `/home/myuser/making/zeromq-2.2.0/src'
  CXX      libzmq_la-clock.lo
../libtool: line 880: X--tag=CXX: command not found
../libtool: line 913: libtool: ignoring unknown tag : command not found
../libtool: line 880: X--mode=compile: command not found
../libtool: line 1047: *** Warning: inferring the mode of operation is deprecated.: command not found
../libtool: line 1048: *** Future versions of Libtool will require --mode=MODE be specified.: command not found
../libtool: line 1191: Xg++: command not found
../libtool: line 1191: X-DHAVE_CONFIG_H: command not found
../libtool: line 1191: X-I.: command not found
../libtool: line 1191: X-pedantic: command not found
../libtool: line 1191: X-Werror: command not found
../libtool: line 1191: X-Wall: command not found
../libtool: line 1191: X-D_REENTRANT: command not found
../libtool: line 1191: X-D_THREAD_SAFE: command not found
../libtool: line 1191: X-DZMQ_FORCE_POLL: command not found
../libtool: line 1191: X-g: command not found
../libtool: line 1191: X-O2: command not found
../libtool: line 1191: X-MT: command not found
../libtool: line 1191: Xlibzmq_la-clock.lo: command not found
../libtool: line 1191: X-MD: command not found
../libtool: line 1191: X-MP: command not found
../libtool: line 1191: X-MF: command not found
../libtool: line 1191: X.deps/libzmq_la-clock.Tpo: No such file or directory
../libtool: line 1191: X-c: command not found
../libtool: line 1244: Xlibzmq_la-clock.lo: command not found
../libtool: line 1249: libtool: compile: cannot determine name of library object from `': command not found
make[2]: *** [libzmq_la-clock.lo] Error 1
make[2]: Leaving directory `/home/myuser/making/zeromq-2.2.0/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/myuser/making/zeromq-2.2.0/src'
make: *** [all-recursive] Error 1
[myuser@mybox ~/making/zeromq-2.2.0]: 
So, thinking I might not have a valid C/C++ compiler (silly, it should work), I download gcc source 4.2 and try to compile. Error message is:
checking for .preinit_array/.init_array/.fini_array support... no
checking if mkdir takes one argument... no
*** Configuration rs6000-ibm-aix not supported
make[2]: *** [configure-stage1-gcc] Error 1
make[2]: Leaving directory `/home/myuser/making/gcc-4.2.4/gcc-4.2.4'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/home/myuser/making/gcc-4.2.4/gcc-4.2.4'
make: *** [all] Error 2
so out of luck there, too. Ug.

What to do? Punt.

I went to IBM's site and signed up for a free copy of their XLC compiler. I downloaded it and handed it over to the sysadmins, who did their magic to it. It comes in a package-thing that is only installable by IBM's installer, so this requires sysadmins.

Once I had it, I changed my env vars to be:

export PYTHONPATH=/opt/recon/dcm/platforms/AIX/pylibs:/opt/recon/dcm/platforms/AIX/pylibs/lib/python2.6/site-packages:$PYTHONPATH
export PATH=$PATH:/opt/recon/dcm/bin:/opt/recon/dcm/AIX/bin:/opt/recon/dcm/platforms/AIX/pylibs/bin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/recon/dcm/lib:/opt/recon/dcm/platforms/AIX/lib
export CONFIG_SHELL=/opt/freeware/bin/bash
export CONFIG_ENV_ARGS=/opt/freeware/bin/bash
export PS1="[\u@\H \w]: "

export CONFIG_SHELL=/opt/freeware/bin/bash
export CONFIG_ENV_ARGS=/opt/freeware/bin/bash
export CC=cc
export CFLAGS="-qmaxmem=16384 -DSYSV -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 -D_AIX51 -D_ALL_SOURCE -DFUNCPROTO=15 -O -I/opt/freeware/include"
export CXX=xlC
export CXXFLAGS=$CFLAGS
export F77=xlf
export FFLAGS="-qmaxmem=16384 -O -I/opt/freeware/include"
export LD=ld
export LDFLAGS="-L/opt/freeware/lib -Wl,-bmaxdata:0x80000000"
export PATH=/opt/recon/dcm/platforms/AIX/bin:/usr/bin:/bin:/etc:/usr/sbin:/usr/ucb:/usr/bin/X11:/sbin:/usr/vac/bin:/usr/vacpp/bin:/usr/ccs/bin:/usr/dt/bin:/usr/opt/perl5/bin:/opt/freeware/bin:/opt/freeware/sbin:/usr/local/bin:/usr/lib/instl
then LOGGED OUT and RELOGGED-IN to pick up the env changes, and proceeded.

I then rebuilt libtool (because the aix version was way old) by doing the standard

${CONFIG_SHELL} ./configure --prefix=...
make
make check
make install
(and it worked!),

I re-untarred the zeromq library, and did:

${CONFIG_SHELL} ./configure --prefix=...
make
make check
but this failed. Problem was
make[1]: Entering directory `/opt/recon/making/zeromq-2.2.0/tests'
make  check-TESTS
make[2]: Entering directory `/opt/recon/making/zeromq-2.2.0/tests'
Could not load program /opt/recon/making/zeromq-2.2.0/tests/.libs/lt-test_pair_inproc:
Could not load module /opt/recon/dcm/platforms/AIX/lib/libzmq.a(libzmq.so.1).
        Dependent module /opt/recon/dcm/platforms/AIX/lib/libcrypto.a(libcrypto.so.1.0.0) could not be loaded.
        Member libcrypto.so.1.0.0 is not found in archive 
Could not load module lt-test_pair_inproc.
        Dependent module /opt/recon/dcm/platforms/AIX/lib/libzmq.a(libzmq.so.1) could not be loaded.
Could not load module .
FAIL: test_pair_inproc
Could not load program /opt/recon/making/zeromq-2.2.0/tests/.libs/lt-test_pair_tcp:
Could not load module /opt/recon/dcm/platforms/AIX/lib/libzmq.a(libzmq.so.1).
        Dependent module /opt/recon/dcm/platforms/AIX/lib/libcrypto.a(libcrypto.so.1.0.0) could not be loaded.
        Member libcrypto.so.1.0.0 is not found in archive 
Could not load module lt-test_pair_tcp.
...

Long story short, the fix for this is:

We have to add the /opt/freeware/lib to the LIBPATH **** FIRST ****. Otherwise, it can't know to find the libcrypto.so.1.0.0 there. You'll get this same error if /opt/freeware/lib is there but not first in line.
export LIBPATH="/opt/freeware/lib:/opt/freeware/lib64:/usr/lib:/usr/local/lib"
and
export LDFLAGS="-L/opt/freeware/lib -L/opt/freeware/lib64 -Wl,-bmaxdata:0x80000000"
then, success:
make[1]: Entering directory `/opt/recon/making/zeromq-2.2.0/tests'
make  check-TESTS
make[2]: Entering directory `/opt/recon/making/zeromq-2.2.0/tests'
PASS: test_pair_inproc
PASS: test_pair_tcp
PASS: test_reqrep_inproc
PASS: test_reqrep_tcp
PASS: test_hwm
PASS: test_shutdown_stress
PASS: test_pair_ipc
PASS: test_reqrep_ipc
test_timeo running...
PASS: test_timeo
==================
All 9 tests passed
==================
make[2]: Leaving directory `/opt/recon/making/zeromq-2.2.0/tests'

SUCCESS. Next, it's pyzmq.

Too much good luck now, I know this is going to fail soon.

... And I'm right. Ug. ... Okay, so (some time later) I've gotten it to compile. It kept giving me problems with:

    ******************************************
    building 'zmq.core._poll' extension
    cc -DNDEBUG -O -qmaxmem=16384 -DSYSV -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 -D_AIX51 -D_ALL_SOURCE -DFUNCPROTO=15 -O -I/opt/freeware/include -I/opt/recon/dcm/platforms/AIX/include -I/opt/recon/dcm/platforms/AIX/include -Izmq/utils -Izmq/core -Izmq/devices -I/opt/freeware/include/python2.6 -c zmq/core/_poll.c -o build/temp.aix-6.1-2.6/zmq/core/_poll.o -Wno-unused-function -Wno-strict-aliasing
    cc: 1501-289 (W) Option -Wno-unused-function was incorrectly specified. The option will be ignored.
    cc: 1501-289 (W) Option -Wno-strict-aliasing was incorrectly specified. The option will be ignored.
    "zmq/utils/zmq_compat.h", line 22.11: 1506-189 (S) Floating-point constant 2.2.0 is not valid.
    "zmq/utils/zmq_compat.h", line 30.11: 1506-189 (S) Floating-point constant 3.0.0 is not valid.
    "zmq/utils/zmq_compat.h", line 70.15: 1506-189 (S) Floating-point constant 3.0.0 is not valid.
    "zmq/utils/zmq_compat.h", line 120.11: 1506-189 (S) Floating-point constant 4.0.0 is not valid.
    "zmq/utils/zmq_compat.h", line 132.15: 1506-189 (S) Floating-point constant 4.0.0 is not valid.
    "zmq/utils/zmq_compat.h", line 147.41: 1506-209 (S) Character constants must end before the end of a line.
    "zmq/utils/zmq_compat.h", line 147.31: 1506-076 (W) Character constant 's fd.hpp)' has more than 4 characters. No more than rightmost 4 characters are used.
    "zmq/utils/zmq_compat.h", line 1.1: 1506-046 (S) Syntax error.
    error: command 'cc' failed with exit status 1
there was nothing about this online. Doomed. ug. So, I peeked in the zmq/utils/zmq_compat.h file to see what it was objecting over. The lines were freaking comments. For some unknown inane stupid reason, the IBM cc (c compiler) objected to perfectly valid comment lines "// new in 3.3.0". So, I know how to edit out comment lines!!! I backed up the file and removed them. Success compiling! I see lots of copies to the prefix directory!

Now, to test: invoke python, import zmq...:

: python
Python 2.6.7 (r267:88850, Nov 22 2011, 20:59:18) [C] on aix5
Type "help", "copyright", "credits" or "license" for more information.
>>> import zmq
Traceback (most recent call last):
  File "", line 1, in 
  File "zmq/__init__.py", line 26, in 
    from zmq.utils import initthreads # initialize threads
ImportError: cannot import name initthreads
>>> 
Yuck, but ... memory arises - Ah ha! I've seen this before. This happens BECAUSE I'M IN THE WRONG DIRECTORY. It's picking up something wrong because i"m in the directory I built pyzmq in. So, I go up one dir:
[esm@aixengsb301p ~/making/pyzmq-2.2.0]: cd ..
[esm@aixengsb301p ~/making]: python
Python 2.6.7 (r267:88850, Nov 22 2011, 20:59:18) [C] on aix5
Type "help", "copyright", "credits" or "license" for more information.
>>> import zmq
>>> 
[esm@aixengsb301p ~/making]: 

SUCCESS!!!!

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