message: Keep frame pointer in debug builds
diff: @@ -302,7 +302,7 @@ if(NOT CMAKE_CXX_FLAGS)
  set(CMAKE_CXX_FLAGS "-std=c++11 -Wextra -Wall -pedantic ${EXTRA_FLAGS}")
  endif()
  if(NOT CMAKE_CXX_FLAGS_DEBUG)
  - set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g")
  + set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g -fno-omit-frame-pointer")
  endif()
  if(NOT CMAKE_CXX_FLAGS_MINSIZEREL)
  set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os")
  @@ -311,7 +311,7 @@ if(NOT CMAKE_CXX_FLAGS_RELEASE)
  set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG")
  endif()
  if(NOT CMAKE_CXX_FLAGS_RELWITHDEBINFO)
  - set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g")
  + set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -fno-omit-frame-pointer")
  endif()
  # set build default build type to RelWithDebInfo if not set
  if(NOT CMAKE_BUILD_TYPE)
  