[tbox-l] Weird GCC problem

[Jurjen O. <ju...@st...>]

Hi there,

I have a problem with gcc-3.3.2-5 on AIX 5.3. I'm using the AIX
5.3 version of the package.

I'm trying to compile ucspi-tcp-0.88 (http://cr.yp.to/ucspi-tcp.html),
but there are weird errors, such as GCC complaining about an internal bug:

# make
        ( cat warn-auto.sh;  echo 'main="$1"; shift';  echo exec "`head -1
conf-ld`"  '-o "$main" "$main".o ${1+"$@"}'  ) > load
        chmod 755 load
        ( cat warn-auto.sh;  echo exec "`head -1 conf-cc`" '-c ${1+"$@"}'
) > compile
        chmod 755 compile
        cat warn-auto.sh choose.sh  | sed s}HOME}"`head -1 conf-home`"}g  >
choose
        chmod 755 choose
        ./choose clr trypoll iopause.h1 iopause.h2 > iopause.h
        ./choose clr tryulong64 uint64.h1 uint64.h2 > uint64.h
        ./compile tcpserver.c
In file included from /usr/include/sys/param.h:43,
                 from tcpserver.c:2:
/usr/include/sys/machine.h:289:1: unterminated comment
/usr/include/sys/machine.h:300:1966: missing terminating ' character
In file included from /usr/include/sys/param.h:43,
                 from tcpserver.c:2:
/usr/include/sys/machine.h:-3103: internal compiler error: Segmentation
fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make: The error code from the last command is 1.


Stop.


Were this an i386 system, I'd immediately suspect the hardware. This
happens on a p550 though, and the system doesn't log any hardware errors
and all other applications seem to work fine. Also, it happens in more
than one LPAR. But.... the symptoms are eerily similar to i386 hardware
problems: after the error above, immediately invoking make again will
compile some more of the program until it bombs out again. It's not always
an internal compiler error, but always "weird" in the sense that invoking
"make" resumes compiling as if the error didn't happen, and "weird" because
it complains about things as errors in system headers or syntax errors in
the program source which aren't there.

After typing "make" a few times, the program even compiles successfully. :-)

This behaviour also occurs with other programs, not just ucspi-tcp.

C for AIX (version 6, latest PTF) doesn't have this problem, not even on
the same machine/LPAR. The exact same program consistently compiles just fine,
in one pass, without errors. 

The system is at AIX 5.3 ML2, with critical fixes. Are the symptoms above
familiar to anybody here?

Thanks,
-- 
Jurjen Oskam