revert back some of the changes and be more close to NESSI

EESSI-install-software.sh

@@ -252,6 +252,10 @@ if command_exists "nvidia-smi"; then
     ${EESSI_PREFIX}/scripts/gpu_support/nvidia/link_nvidia_host_libraries.sh
 fi
 
+# Don't run the Lmod GPU driver check when doing builds (may not have a GPU, and it's not relevant for vanilla builds anyway)
+echo "EESSI_OVERRIDE_GPU_CHECK='${EESSI_OVERRIDE_GPU_CHECK}'"
+export EESSI_OVERRIDE_GPU_CHECK=1
+
 # use PR patch file to determine in which easystack files stuff was added
 changed_easystacks=$(cat ${pr_diff} | grep '^+++' | cut -f2 -d' ' | sed 's@^[a-z]/@@g' | grep '^easystacks/.*yml$' | egrep -v 'known-issues|missing') 
 if [ -z "${changed_easystacks}" ]; then

bot/build.sh

@@ -223,7 +223,7 @@ mkdir -p ${TARBALL_TMP_BUILD_STEP_DIR}
 BUILD_STEP_ARGS+=("--save" "${TARBALL_TMP_BUILD_STEP_DIR}")
 BUILD_STEP_ARGS+=("--storage" "${STORAGE}")
 # add options required to handle NVIDIA support
-BUILD_STEP_ARGS+=("--nvidia" "install")
+BUILD_STEP_ARGS+=("--nvidia" "all")
 if [[ ! -z ${SHARED_FS_PATH} ]]; then
     BUILD_STEP_ARGS+=("--host-injections" "${SHARED_FS_PATH}/host-injections")
 fi

eessi_container.sh

@@ -467,6 +467,11 @@ if [[ ${SETUP_NVIDIA} -eq 1 ]]; then
             # No GPU so we need to "trick" Lmod to allow us to load CUDA modules even without a CUDA driver
             # (this variable means EESSI_OVERRIDE_GPU_CHECK=1 will be set inside the container)
             export SINGULARITYENV_EESSI_OVERRIDE_GPU_CHECK=1
+            # We need to "trick" our LMOD_RC file to allow us to load CUDA modules even without a CUDA driver
+            # (this works because we build within a container and the LMOD_RC recognises that)
+            touch ${EESSI_TMPDIR}/libcuda.so
+            export SINGULARITY_CONTAINLIBS="${EESSI_TMPDIR}/libcuda.so"
+            echo "Applied hacks to trick Lmod to allow us to load CUDA modules"
         fi
     fi
 fi