Test crashes in aarch64 built with clang++

[sakhnik]

Expected Behavior

Test to pass

Actual Behavior

SIGSEGV is received:

Program received signal SIGSEGV, Segmentation fault.
0x0000aaaaaaf92c58 in boost::ext::ut::v2_0_0::reporter_junit<boost::ext::ut::v2_0_0::printer>::reporter_junit (
    this=0xaaaaad0267a0 <boost::ext::ut::v2_0_0::cfg<boost::ext::ut::v2_0_0::override>>) at _deps/ut-src/include/boost/ut.hpp:1611
1611      std::streambuf* cout_save = std::cout.rdbuf();

This only happened in Manjaro Linux aarch64 when I attempted to build and run https://github.com/sakhnik/adventofcode . The build on x86_64 runs fine.

Steps to Reproduce the Problem

1. git clone https://github.com/sakhnik/adventofcode
2. cd adventofcode
3. ./conf.sh
4. cmake --build BUILD
5. ./BUILD/aoc 2023-01

Specifications

• Version: 2.0.1
• Platform: aarch64, Manjaro Linux
• Compiler: clang++
• Subsystem:

The executable doesn't crash when built with gcc!

[jmafc]

I am seeing something something similar when building/testing 2.0.1 on Debian 12 using clang++-16. I had some very simple tests (like adding integers) that worked fine with ut before. When I tried it on something somewhat more complex (tokenizing some strings) with clang++-16, I got a segfault. Retrying the same simple tests with the latter compiler also resulted in a segfault.

Since the installed version of ut had been built with gcc (12.2.0), I decided to rebuild it with clang++ (16.0.6). Now the build fails as follows:

[8/115] Linking CXX executable example/boost_ut_abort
FAILED: example/boost_ut_abort
: && /usr/bin/clang++-16   example/CMakeFiles/boost_ut_abort.dir/abort.cpp.o -o example/boost_ut_abort && cd .../ut/support/ut/build/example && .../ut/build/example/boost_ut_abort
Segmentation fault

This is really annoying because clang++ 16 AFAIK is the only compiler on Linux that currently supports C++20 modules.