config: fix --enable-mca-dso: correct the AS_VAR macro

Fix bug introduced in 000f7e8.

AS_VAR_COPY(dest, source) interprets the 'source' argument as a variable name.
So, before this patch, the value was not '1', but '$1', which evaluated to
garbage and broke the --enable-mca-dso argument.

Signed-off-by: Alexei Colin <acolin@isi.edu>

Author: acolinisi

config/opal_mca.m4

@@ -103,10 +103,10 @@ AC_DEFUN([OPAL_MCA],[
                 type=$item
             fi
             if test -z $comp ; then
-                AS_VAR_COPY([AS_TR_SH([DISABLE_$type])], [1])
+                AS_VAR_SET([AS_TR_SH([DISABLE_$type])], [1])
                 msg="$item $msg"
             else
-                AS_VAR_COPY([AS_TR_SH([DISABLE_$type_$comp])], [1])
+                AS_VAR_SET([AS_TR_SH([DISABLE_$type_$comp])], [1])
                 msg="$item $msg"
             fi
         done
@@ -149,7 +149,7 @@ AC_DEFUN([OPAL_MCA],[
                 AC_MSG_ERROR([*** The enable-mca-direct flag requires a
 *** list of type-component pairs.  Invalid input detected.])
             else
-                AS_VAR_COPY([AS_TR_SH([DIRECT_$type])], [AS_TR_SH([$comp])])
+                AS_VAR_SET([AS_TR_SH([DIRECT_$type])], [AS_TR_SH([$comp])])
                 msg="$item $msg"
             fi
         done
@@ -184,7 +184,7 @@ AC_DEFUN([OPAL_MCA],[
         IFS="${IFS}$PATH_SEPARATOR,"
         msg=
         for item in $enable_mca_dso; do
-            AS_VAR_COPY([AS_TR_SH([DSO_$item])], [1])
+            AS_VAR_SET([AS_TR_SH([DSO_$item])], [1])
             msg="$item $msg"
         done
         IFS="$ifs_save"
@@ -212,7 +212,7 @@ AC_DEFUN([OPAL_MCA],[
         IFS="${IFS}$PATH_SEPARATOR,"
         msg=
         for item in $enable_mca_static; do
-            AS_VAR_COPY([AS_TR_SH([STATIC_$item])], [1])
+            AS_VAR_SET([AS_TR_SH([STATIC_$item])], [1])
             msg="$item $msg"
         done
         IFS="$ifs_save"