Clang compilation with --enable-coverage fails.

[torque59]

Im trying to compile the ATS:master with clang (clang version 10.0.0-4ubuntu1) with flags --enable-coverage on ubuntu 20.04. It fails with the following error message.

/usr/bin/ld: .libs/traffic_api_cli_remote: hidden symbol `atexit' in /usr/lib/x86_64-linux-gnu/libc_nonshared.a(atexit.oS) is referenced by DSO
/usr/bin/ld: final link failed: bad value
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [Makefile:832: traffic_api_cli_remote] Error 1
make[3]: Leaving directory '/tmp/installtrafficserver/trafficserver/mgmt/api'
make[2]: *** [Makefile:895: install-recursive] Error 1
make[2]: Leaving directory '/tmp/installtrafficserver/trafficserver/mgmt/api'
make[1]: *** [Makefile:806: install-recursive] Error 1
make[1]: Leaving directory '/tmp/installtrafficserver/trafficserver/mgmt'
make: *** [Makefile:853: install-recursive] Error 1

Build command is basically this
CC=clang CXX=clang++ ./configure --enable-coverage=yes && make -j(nproc)

P.S this works fine when compiled with gcc. Any help/pointers to fix would be helpful.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.

[bryancall]

This was specific to the autotools build (--enable-coverage / configure.ac) and the old mgmt/api layout. Autotools was removed in 2023 (#10794) and ATS is CMake-only now, so this configuration and the failing target no longer exist and the issue is no longer reproducible. Closing as obsolete. If you hit a coverage-build problem under the current CMake build, please open a fresh issue with the CMake details.

Update: autotools was removed as of the 10.0.0 release, so this is moot from 10.0.0 onward (current: 10.1.2).