[cfarm-users] gcc112/ppc64-le, and undefined reference to __cxa_thread_atexit_impl

[Jeffrey Walton]

On Mon, Feb 19, 2018 at 4:12 PM, Segher Boessenkool
<segher at kernel.crashing.org> wrote:
> Hi,
>
> On Mon, Feb 19, 2018 at 02:49:47PM -0500, Jeffrey Walton via cfarm-users wrote:
>> /opt/cfarm/gcc7rc2/bin/g++ -o cryptest.exe -DNDEBUG -g2 -O3 -fPIC
>> -pthread -pipe adhoc.o test.o bench1.o bench2.o validat0.o validat1.o
>> validat2.o validat3.o validat4.o datatest.o regtest1.o regtest2.o
>> regtest3.o dlltest.o fipsalgt.o ./libcryptopp.a
>> /home/guerby/opt/cfarm/gcc7rc2/bin/../lib/gcc/powerpc64le-unknown-linux-gnu/7.0.1/../../../../lib64/libstdc++.so:
>> undefined reference to `__cxa_thread_atexit_impl at GLIBC_2.18'
>> collect2: error: ld returned 1 exit status
>> make: *** [cryptest.exe] Error 1
>
> How/why do you get anything from /home/guerby?  /opt/cfarm/gcc7rc2 was
> build on a different machine (and it is only there so people can use it
> as an easy starting point for building ada: the system compiler on 112
> does not support that) so there is no way it refers to there.

Hmm, I'm not sure. I'm on GCC112, and it is in /opt/cfarm:

$ ls /opt/cfarm/
autoconf-latest    ftp         krb5-latest  mpfr-latest     python3-latest
bison-latest       gcc7rc2     m4-latest    openssl-latest  release
cyrus-sasl-latest  gcc-latest  make-latest  perl5-latest    zlib-latest
db-latest          gmp-latest  mpc-latest   python2-latest

> I know nothing about the build system you used, but it seems buggy.

I used a GNUmakefile:

    CXX=/opt/cfarm/gcc7rc2/bin/g++ make -j 20

Nothing special, as far as I know. Just using the latest compiler.

Jeff