"clang++-18"   -fvisibility-inlines-hidden -Wno-c99-extensions -std=c++2b -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_fail8.test/clang-linux-18~c++2b/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_doc_empty_fail8.o" "../libs/vmd/test/test_doc_empty_fail8.cpp"

In file included from ../libs/vmd/test/test_doc_empty_fail8.cpp:7:
../libs/vmd/test/test_doc_empty_fail8.cxx:21:11: error: use of undeclared identifier 'FMACRO3'
   21 |   int x = FMACRO1(FMACRO2);
      |           ^
../libs/vmd/test/test_doc_empty_fail8.cxx:17:30: note: expanded from macro 'FMACRO1'
   17 |   #define FMACRO1(parameter) FMACRO3 parameter()
      |                              ^
1 error generated.