"clang++-6.0"   -fvisibility-inlines-hidden -Wno-c99-extensions -std=c++17 -stdlib=libc++ -isystem/usr/include/libcxxabi -fPIC -pthread -O0 -fno-inline -Wall -fvisibility=hidden -m64 --target=x86_64-pc-linux  -DBOOST_ALL_NO_LIB=1 -DBOOST_COBALT_USE_STD_PMR=1   -I".."  -c -o "/var/boost/run/results/boost/bin.v2/libs/vmd/test/test_doc_empty_fail4.test/clang-linux-6.0~c++17~lc/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_doc_empty_fail4.o" "../libs/vmd/test/test_doc_empty_fail4.cpp"

In file included from ../libs/vmd/test/test_doc_empty_fail4.cpp:7:
../libs/vmd/test/test_doc_empty_fail4.cxx:20:15: error: too few arguments provided to function-like macro invocation
  BOOST_TEST(!BOOST_VMD_IS_EMPTY(some_input FMACRO));
              ^
../boost/vmd/is_empty.hpp:100:5: note: expanded from macro 'BOOST_VMD_IS_EMPTY'
    BOOST_VMD_IS_EMPTY_NO_OPT(__VA_ARGS__) \
    ^
../boost/vmd/is_empty.hpp:113:7: note: expanded from macro 'BOOST_VMD_IS_EMPTY_NO_OPT'
      BOOST_VMD_DETAIL_IS_EMPTY_PROCESS \
      ^
../libs/vmd/test/test_doc_empty_fail4.cxx:18:11: note: macro 'FMACRO' defined here
  #define FMACRO(x,y) any_output
          ^
1 error generated.