introduce build parameters

Containerfile.debian

@@ -25,15 +25,6 @@ FROM docker.io/library/python:${PYTHON_VERSION}-${DEBIAN_VERSION} AS pybuilder
 ENV PYTHONUNBUFFERED=1
 ENV PIP_ROOT_USER_ACTION=ignore
 
-RUN <<EOF
-# install packages
-set -e
-apt update
-apt -y upgrade
-apt -y install libolm-dev
-rm -rf /var/lib/apt/lists/*
-EOF
-
 COPY --from=gobuilder /pygomx-build/libmxclient.so /usr/local/lib/libmxclient.so
 COPY --from=gobuilder /pygomx-build/libmxclient.h /usr/local/include/libmxclient.h
 
@@ -45,7 +36,7 @@ RUN <<EOF
 # build py module
 set -e
 cd /pygomx
-PYGOMX_LINK_OLM=1 python3 build_ffi.py
+PYGOMX_BUILD_MODE=shared python3 build_ffi.py
 ls -la *.so
 EOF