message: pass extra cflags to abigen
diff: @@ -82,6 +82,7 @@ function generate_abi {
  -extra-arg=-I${EOSIO_INSTALL_DIR}/include/libc++/upstream/include \
  -extra-arg=-I${EOSIO_INSTALL_DIR}/include/musl/upstream/include \
  -extra-arg=-I${BOOST_INCLUDE_DIR} \
  + -extra-arg=${EOSIOCPP_CFLAGS} \
  -extra-arg=-I${EOSIO_INSTALL_DIR}/include -extra-arg=-I$context_folder \
  -extra-arg=-fparse-all-comments -destination-file=${outname} -verbose=0 \
  -context=$context_folder $1 --
  