Turn on DEBUG build in CI runs?

[edwardhartnett]

I see this in CMakeLists.txt:

if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g -traceback")
  set(CMAKE_Fortran_FLAGS_RELEASE "-O3 -fp-model precise")
  set(CMAKE_Fortran_FLAGS_DEBUG "-O0 -check -check noarg_temp_created -check nopointer -fp-stack-check -fstack-protector-all -fpe0 -debug -ftrapuv")
elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g -fbacktrace")
  set(CMAKE_Fortran_FLAGS_RELEASE "-O3")
  set(CMAKE_Fortran_FLAGS_DEBUG "-O0 -ggdb -fno-unsafe-math-optimizations -frounding-math -fsignaling-nans -ffpe-trap=invalid,zero,overflow -fbounds-check")
endif()

So it seems that DEBUG builds have some extra checking. We should be running this during CI runs.