Jamfile

project
   : default-build
      release
   : requirements
      <cxxflags>"-fno-omit-frame-pointer "
      <library>/googlebenchmark # <link>static <runtime-link>static <*>static requires multi  <threading>single <threading>multi
      #<variant>debug:<define>SOMEMACRO # If compiling debug, define SOMEMACRO
      #<cxxflags>"-fsanitize=float-cast-overflow "
      #<variant>release # builds only release versions. It is not possible to build a debug version anymore as requirements can not be overwritten.
;

exe hash : hash.cpp : <optimization>speed ;
exe fast_accum : fast_accum.cpp : <optimization>speed ;

run test_int_overflow.cpp [ obj ftrapv : ftrapv_gcc.cpp ]
   : : : <optimization>speed <variant>release
         <toolset>gcc:<cxxflags>"-ftrapv "
   ;
alias test_int_overflow : : <toolset>msvc ;

exe int_overflow_no_check : test_int_overflow.cpp ftrapv_gcc.cpp : <optimization>speed <variant>release ;
alias int_overflow_no_check : : <toolset>msvc ;

run random_overflow.cpp ;

#error: default build must be identical in all alternatives
#error: main target is ./int_overflow_no_check
#error: with <variant>release
#error: differing from previous default build <optimization>speed <variant>release