Per RFC enable the use of the source directive (relative path) in platform files. The priority of configure options vs platform file options remains the same.

This commit was SVN r26873.

config/ompi_load_platform.m4

@@ -50,7 +50,18 @@ AC_DEFUN([OMPI_LOAD_PLATFORM], [
         # eval into environment
         OPAL_LOG_MSG([Loading environment file $with_platform, with contents below])
         OPAL_LOG_FILE([$with_platform])
-        . "$with_platform"
+
+        # setup by getting full pathname for the platform directories
+        platform_base="`dirname $with_platform`"
+        platform_file="`basename $with_platform`"
+        # get full pathname of where we are so we can return
+        platform_savedir="`pwd`"
+        # go to where the platform file is located
+        cd "$platform_base"
+        # get the full path to this location
+        platform_file_dir=`pwd`
+
+        . "$platform_file"
 
         # see if they left us a name
         if test "$OMPI_PLATFORM_LOADED" != "" ; then
@@ -63,14 +74,6 @@ AC_DEFUN([OMPI_LOAD_PLATFORM], [
 
         # look for default mca param file
 
-        # setup by getting full pathname for the platform directories
-        platform_base="`dirname $with_platform`"
-        # get full pathname of where we are so we can return
-        platform_savedir="`pwd`"
-        # go to where the platform file is located
-        cd "$platform_base"
-        # get the full path to this location
-        platform_file_dir=`pwd`
         # return to where we started
         cd "$platform_savedir"