problems building gcc-4.3.5-1 on AIX 6.1 with pthreads

[David Edelsohn]

I am completely confused what Rick is trying to do.

First, do not use GNU Binutils on AIX. I do not understand the
reference to Binutils 2.22.  Remove GNU as and GNU ld from your path.

GCC builds correctly on AIX without all of the extra options.  do not
enable threads, do not specify threads=posix do not disable shared, do
not enable static, do not add -pthread to CFLAGS.

If you stop trying to override everything, GCC will build without problem.

- David

On Fri, Oct 26, 2012 at 10:34 AM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> David, any ideas about this one?
>
> On 26 October 2012 14:01, Rick Springob <rspringob@gmail.com> wrote:
>> On Thu, Oct 18, 2012 at 4:08 PM, Rick Springob <rspringob@gmail.com> wrote:
>>> I need to use an older version of gcc in order to help debug an old,
>>> released build. We will also run new builds with gcc-4.3.5  for
>>> compatibility reasons.  The original build machine is toast. I am
>>> working in a newly provisioned machine running AIX 6.1. The gcc-4.3.5
>>> that is available via rpm uses the aix thread model and I need to
>>> build with pthreads.  I have built pre-req's bintuils-2.22,
>>> mpfr-3.1.1-1, gmp-5.0.5.
>>>
>>> I am currently trying to bootstrap using gcc-4.3.5-1. I have tried the
>>> native compiler, xlc, but had other errors and am back to using gcc.
>>> (Not to mention that the documentation told me that using gcc was an
>>> better path to follow.)
>>>
>>> Question #1) --enable-threads=posix does not seem to work. Is this
>>> flag supported or perhaps I am using it incorrectly?
>>>
>>> Here is my configure statement:
>>>
>>> /opt/gcc_work/gcc-4.3.5-src/
>>> configure --disable-shared --enable-static --enable-threads=posix
>>> --prefix=/opt/freeware/gcc_4_3_5 --exec-prefix=/opt/freeware/gcc_4_3_5
>>> -enable-languages=c,c++ --srcdir=/opt/gcc_work/gcc-4.3.5-src
>>> --includedir=/opt/gcc_work/gcc-4.3.5-src/include "CFLAGS=-pthread"
>>> "CXXFLAGS=-pthread"
>>>
>>> In <build dir>/config.log I see:
>>>
>>> "
>>> Configured with: ../gcc-4.3.5/configure --with-as=/usr/bin/as
>>> --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran --prefix=
>>> /opt/freeware --enable-threads --enable-version-specific-runtime-libs
>>> --disable-nls --enable-decimal-float=dpd --host=powerpc-
>>> ibm-aix6.1.0.0
>>> Thread model: aix
>>> "
>>>
>>> The thread model might have been an omen that leads to my second question.
>>>
>>> Question #2) How can I propagate the use of pthreads into the build?
>>>
>>> The build is currently dying in the intl directory. Here is the
>>> trouble area from <build dir>/intl/config.log:
>>>
>>> "
>>> configure:2092:  /data/gcc_work/gcc-4.3.5-build/./prev-gcc/xgcc
>>> -B/data/gcc_work/gcc-4.3.5-build/./prev-gcc/ -B/opt/freeware/g
>>> cc_4_3_5/powerpc-ibm-aix6.1.0.0/bin/ -V </dev/null >&5
>>> xgcc: '-V' must come at the start of the command line
>>> configure:2095: $? = 1
>>> configure:2118: checking for C compiler default output file name
>>> configure:2121:  /data/gcc_work/gcc-4.3.5-build/./prev-gcc/xgcc
>>> -B/data/gcc_work/gcc-4.3.5-build/./prev-gcc/
>>> -B/opt/freeware/gcc_4_3_5/powerpc-ibm-aix6.1.0.0/bin/ -g -O2
>>> -Wl,-bbigtoc conftest.c  >&5
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_cond_wait
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_cond_broadcast
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutexattr_init
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutexattr_settype
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_init
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutexattr_destroy
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_unlock
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_trylock
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_lock
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_setspecific
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_getspecific
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_key_delete
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_key_create
>>> ld: 0711-317 ERROR: Undefined symbol: .pthread_once
>>> ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
>>> collect2: ld returned 8 exit status
>>> configure:2124: $? = 1
>>> "
>>>
>>> If I add "-lpthread" to the command that configure ran and run it
>>> myself, it works:
>>>
>>> "
>>> bash-3.2# /data/gcc_work/gcc-4.3.5-build/./prev-gcc/xgcc
>>> -B/data/gcc_work/gcc-4.3.5-build/./prev-gcc/
>>> -B/opt/freeware/gcc_4_3_5/powerpc-ibm-aix6.1.0.0/bin/ -g -O2
>>> -Wl,-bbigtoc -lpthread /tmp/conftest.c
>>> bash-3.2# echo $?
>>> 0
>>> "
>>>
>>> Thanks,
>>>  -Rick
>>
>> No takers???
>>
>> I tried using 4.3.5 to bootstrap gcc 4.7.2 and had new problems. (And,
>> 4.7.2 is not the version that I really need.) I tried invoking xlc in
>> a number of ways to bootstrao, c99_r7, xlc_r7, etc. Each invocation
>> fails differently. I might as well keep trying to solve the original
>> problem.
>>
>> So, how do I get pthread support in gcc 4.3.5? If it is a simple
>> configuration item that I missed, I'll take the well-deserved flames
>> along with a pointer in the right direction.
>>
>> Thanks in advance,
>>  -Rick