Build of Python 2.6.5 on AIX 5.3 fails with the below error message.

The configure line is:
./configure 

[...]
building '_multiprocessing' extension
cc_r -qlanglvl=extc89 -DNDEBUG -O -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/sw_install/python-2.6.5/./Include -I. -IInclude -I./Include -I/usr/local/include -I/sw_install/python-2.6.5/Include -I/sw_install/python-2.6.5 -c /sw_install/python-2.6.5/Modules/_multiprocessing/multiprocessing.c -o build/temp.aix-5.3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/multiprocessing.o
cc_r -qlanglvl=extc89 -DNDEBUG -O -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/sw_install/python-2.6.5/./Include -I. -IInclude -I./Include -I/usr/local/include -I/sw_install/python-2.6.5/Include -I/sw_install/python-2.6.5 -c /sw_install/python-2.6.5/Modules/_multiprocessing/socket_connection.c -o build/temp.aix-5.3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/socket_connection.o
cc_r -qlanglvl=extc89 -DNDEBUG -O -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/sw_install/python-2.6.5/./Include -I. -IInclude -I./Include -I/usr/local/include -I/sw_install/python-2.6.5/Include -I/sw_install/python-2.6.5 -c /sw_install/python-2.6.5/Modules/_multiprocessing/semaphore.c -o build/temp.aix-5.3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/semaphore.o
./Modules/ld_so_aix cc_r -qlanglvl=extc89 -bI:Modules/python.exp build/temp.aix-5.3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/multiprocessing.o build/temp.aix-5./multim3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/socket_connection.o build/temp.aix-5.3-2.6/sw_install/python-2.6.5/Modules/_multiprocessing/semaphore.o -L/usr/local/lib -o build/lib.aix-5.3-2.6/_multiprocessing.so
checking build system type... powerpc-ibm-aix5.3.0.0
checking host system type... powerpc-ibm-aix5.3.0.0
checking target system type... powerpc-ibm-aix5.3.0.0
checking for a BSD-compatible install... /sw_install/python-2.6.5/Modules/_ctypes/libffi/install-sh -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /sw_install/python-2.6.5/Modules/_ctypes/libffi/install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... nawk
checking whether make sets $(MAKE)... yes
checking for gcc... cc_r -qlanglvl=extc89
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... no
checking whether cc_r -qlanglvl=extc89 accepts -g... yes
checking for cc_r -qlanglvl=extc89 option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of cc_r -qlanglvl=extc89... none
checking dependency style of cc_r -qlanglvl=extc89... none
checking whether cc_r -qlanglvl=extc89 and cc understand -c and -o together... yes
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for non-GNU ld... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... no
checking for /usr/bin/ld option to reload object files... -r
checking for BSD-compatible nm... /usr/bin/nm -B
checking whether ln -s works... yes
checking how to recognize dependent libraries... pass_all
checking how to run the C preprocessor... cc_r -qlanglvl=extc89 -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking dlfcn.h usability... yes
checking dlfcn.h presence... yes
checking for dlfcn.h... yes
checking for g++... no
checking for c++... no
checking for gpp... no
checking for aCC... no
checking for CC... no
checking for cxx... no
checking for cc++... no
checking for cl.exe... no
checking for FCC... no
checking for KCC... no
checking for RCC... no
checking for xlC_r... xlC_r
checking whether we are using the GNU C++ compiler... no
checking whether xlC_r accepts -g... yes
checking dependency style of xlC_r... none
checking how to run the C++ preprocessor... xlC_r -E
checking for g77... no
checking for xlf... no
checking for f77... no
checking for frt... no
checking for pgf77... no
checking for cf77... no
checking for fort77... no
checking for fl32... no
checking for af77... no
checking for xlf90... no
checking for f90... no
checking for pgf90... no
checking for pghpf... no
checking for epcf90... no
checking for gfortran... no
checking for g95... no
checking for xlf95... no
checking for f95... no
checking for fort... no
checking for ifort... no
checking for ifc... no
checking for efc... no
checking for pgf95... no
checking for lf95... no
checking for ftn... no
checking whether we are using the GNU Fortran 77 compiler... no
checking whether  accepts -g... no
checking the maximum length of command line arguments... 18432
checking command to parse /usr/bin/nm -B output from cc_r -qlanglvl=extc89 object... ok
checking for objdir... .libs
checking for ar... ar
checking for ranlib... ranlib
checking for strip... strip
checking for cc_r -qlanglvl=extc89 option to produce PIC...
checking if cc_r -qlanglvl=extc89 static flag -bnso -bI:/lib/syscalls.exp works... no
checking if cc_r -qlanglvl=extc89 supports -c -o file.o... yes
checking whether the cc_r -qlanglvl=extc89 linker (/usr/bin/ld) supports shared libraries... yes
checking dynamic linker characteristics... aix5.3.0.0 ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... no
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking whether to enable maintainer-specific portions of Makefiles... no
checking sys/mman.h usability... yes
checking sys/mman.h presence... yes
checking for sys/mman.h... yes
checking for mmap... yes
checking for sys/mman.h... (cached) yes
checking for mmap... (cached) yes
checking whether read-only mmap of a plain file works... yes
checking whether mmap from /dev/zero works... yes
checking for MAP_ANON(YMOUS)... yes
checking whether mmap with MAP_ANON(YMOUS) works... yes
checking for ANSI C header files... (cached) yes
checking for memcpy... yes
checking for working alloca.h... yes
checking for alloca... yes
checking for double... yes
checking size of double... 8
checking for long double... yes
checking size of long double... 8
checking whether byte ordering is bigendian... yes
checking assembler .cfi pseudo-op support... no
checking whether .eh_frame section should be read-only... no
checking for __attribute__((visibility("hidden")))... no
cc_r: 1501-210 command option t contains an incorrect subargument
configure: creating ./config.status
config.status: creating include/ffi.h
sed: Command line is too long.
config.status: creating fficonfig.py
sed: Command line is too long.
config.status: creating fficonfig.h
config.status: linking /sw_install/python-2.6.5/Modules/_ctypes/libffi/src/powerpc/ffitarget.h to include/ffitarget.h
config.status: linking /sw_install/python-2.6.5/Modules/_ctypes/libffi/include/ffi_common.h to include/ffi_common.h
config.status: executing depfiles commands
config.status: executing include commands
config.status: executing src commands
Traceback (most recent call last):
  File "./setup.py", line 1919, in <module>
    main()
  File "./setup.py", line 1914, in main
    'Lib/smtpd.py']
  File "/sw_install/python-2.6.5/Lib/distutils/core.py", line 152, in setup
    dist.run_commands()
  File "/sw_install/python-2.6.5/Lib/distutils/dist.py", line 975, in run_commands
    self.run_command(cmd)
  File "/sw_install/python-2.6.5/Lib/distutils/dist.py", line 995, in run_command
    cmd_obj.run()
  File "/sw_install/python-2.6.5/Lib/distutils/command/build.py", line 134, in run
    self.run_command(cmd_name)
  File "/sw_install/python-2.6.5/Lib/distutils/cmd.py", line 333, in run_command
    self.distribution.run_command(command)
  File "/sw_install/python-2.6.5/Lib/distutils/dist.py", line 995, in run_command
    cmd_obj.run()
  File "/sw_install/python-2.6.5/Lib/distutils/command/build_ext.py", line 340, in run
    self.build_extensions()
  File "./setup.py", line 201, in build_extensions
    build_ext.build_extensions(self)
  File "/sw_install/python-2.6.5/Lib/distutils/command/build_ext.py", line 449, in build_extensions
    self.build_extension(ext)
  File "./setup.py", line 234, in build_extension
    if not self.configure_ctypes(ext):
  File "./setup.py", line 1730, in configure_ctypes
    extra_compile_args = fficonfig['ffi_cflags'].split()
KeyError: 'ffi_cflags'
make: 1254-004 The error code from the last command is 1.


Stop.


Thanks.

Orlando