"g++-9"   -fvisibility-inlines-hidden -std=c++17 -fPIC -m64 -pthread -O0 -fno-inline -Wall -fvisibility=hidden  -DBOOST_ALL_NO_LIB=1 -DBOOST_COBALT_USE_STD_PMR=1   -I".." -I"/var/boost/run/boost_root/libs/predef/include"  -c -o "/var/boost/run/results/boost/bin.v2/libs/predef/test/tested_at_outdated.test/gcc-9~c++17/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/tested_at_outdated.o" "../libs/predef/test/tested_at_outdated.cpp"

In file included from ../libs/predef/test/tested_at_outdated.cpp:9:
../boost/predef/other/workaround.h:88:17: error: division by zero in #if
   88 |             : (1%0) )
      |                 ^
../libs/predef/test/tested_at_outdated.cpp:13:5: note: in expansion of macro 'BOOST_PREDEF_TESTED_AT'
   13 | #if BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(2,0,0),1,0,0)
      |     ^~~~~~~~~~~~~~~~~~~~~~
(failed-as-expected) /var/boost/run/results/boost/bin.v2/libs/predef/test/tested_at_outdated.test/gcc-9~c++17/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/tested_at_outdated.o

    echo failed as expected > "/var/boost/run/results/boost/bin.v2/libs/predef/test/tested_at_outdated.test/gcc-9~c++17/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/tested_at_outdated.o"