>>> 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@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.
> Why are you using /opt/cfarm instead of the default system compiler?

I'm trying to reproduce a problem under Fedora 28.

The problem is not present under the default compiler, which is GCC 4.8.5.

> That is special.  /opt/cfarm is not installed as an alternate system
> compiler.  It's not even the latest compiler.  If you choose to
> override the defaults and refer to a random compiler whose origin you
> don't know, you may encounter unintended consequences, as you have
> discovered.

Oh, my bad. I thought the latest stuff was installed in /opt/cfarm.

So I am clear: we are _not_ supposed to use stuff in /opt/cfarm. Is
that correct?

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