default_pre_build &&
message "${MESSAGE_COLOR}Allow providing our own CXXFLAGS...${DEFAULT_COLOR}" &&
patch $SOURCE_DIRECTORY/tools/build/v2/tools/gcc.jam \
      $SCRIPT_DIRECTORY/boost-use-cxxflags.patch &&
patch -p1 -d $SOURCE_DIRECTORY < $SCRIPT_DIRECTORY/converter_policies_hpp.patch &&
message "patching done"

