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

[Jonathan Wakely]

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