Merge pull request open-mpi#12055 from hppritcha/dso_accelerators

accelerator: build components as dso's by default

Author: hppritcha

config/opal_mca.m4

@@ -13,7 +13,7 @@ dnl                         All rights reserved.
 dnl Copyright (c) 2010-2021 Cisco Systems, Inc.  All rights reserved
 dnl Copyright (c) 2013-2017 Intel, Inc. All rights reserved.
 dnl Copyright (c) 2018-2022 Amazon.com, Inc. or its affiliates.  All Rights reserved.
-dnl Copyright (c) 2021      Triad National Security, LLC. All rights
+dnl Copyright (c) 2021-2023 Triad National Security, LLC. All rights
 dnl                         reserved.
 dnl $COPYRIGHT$
 dnl
@@ -167,32 +167,36 @@ of type-component pairs.  For example, --enable-mca-no-build=pml-ob1])
     # Second, set the DSO_all and STATIC_all variables.  conflict
     # resolution (prefer static) is done in the big loop below
     #
+    # Exception here is the components of the accelerator framework,
+    # which by default are built to be dynamic, except for null.
+    #
     AC_MSG_CHECKING([which components should be run-time loadable])
     if test "$enable_static" != "no"; then
         DSO_all=0
         msg="none (static libraries built)"
     elif test "$OPAL_ENABLE_DLOPEN_SUPPORT" = 0; then
         DSO_all=0
         msg="none (dlopen disabled)"
-    elif test -z "$enable_mca_dso"; then
-        DSO_all=0
-        msg=default
     elif test "$enable_mca_dso" = "no"; then
         DSO_all=0
         msg=none
     elif test "$enable_mca_dso" = "yes"; then
         DSO_all=1
         msg=all
     else
-        DSO_all=0
-        ifs_save="$IFS"
-        IFS="${IFS}$PATH_SEPARATOR,"
-        msg=
-        for item in $enable_mca_dso; do
-            AS_VAR_SET([AS_TR_SH([DSO_$item])], [1])
-            msg="$item $msg"
-        done
-        IFS="$ifs_save"
+       msg=
+       if test -z "$enable_mca_dso"; then
+           enable_mca_dso="accelerator-cuda,accelerator-rocm,accelerator-ze,btl-smcuda,rcache-gpusm,rcache-rgpusm"
+           msg="(default)"
+       fi
+       DSO_all=0
+       ifs_save="$IFS"
+       IFS="${IFS}$PATH_SEPARATOR,"
+       for item in $enable_mca_dso; do
+           AS_VAR_SET([AS_TR_SH([DSO_$item])], [1])
+           msg="$item $msg"
+       done
+       IFS="$ifs_save"
     fi
     AC_MSG_RESULT([$msg])
     unset msg