Ubuntu.cfg does not link with libmpl

[Roland Haas]

mpich2 on ubuntu seems to require an explicit -lmpl to link with libmpl on my test system. The fix is obviously to include this library in MPI_LIBS.

Index: mdb/optionlists/ubuntu.cfg
===================================================================
--- mdb/optionlists/ubuntu.cfg  (revision 1828)
+++ mdb/optionlists/ubuntu.cfg  (working copy)
@@ -79,6 +79,6 @@
 MPI_DIR = /usr
 MPI_INC_DIRS = /usr/include/mpich2
 MPI_LIB_DIRS = /usr/lib
-MPI_LIBS     = mpich fmpich
+MPI_LIBS     = mpich fmpich mpl

 PTHREADS = yes

This makes ubuntu.cfg almost a superset of the options set in debian.cfg. If we either have a willing maintainer for ubuntu.cfg or Frank is willing to take over ubuntu.cfg I'd think it might be a good idea to drop the explicit debian.cfg in favor of ubuntu.cfg since ubuntu is the more populer distribution.

Keyword:

[Frank Löffler]

I agree that both configurations are pretty similar, not surprisingly. I would like to keep both however as long as there are differences. Looking at both I see that both could be improved, but I don't want to play around with that so short before the release if not necessary.

Concerning mpl - if mpich2 in ubuntu needs mpl, then go ahead and commit. I am pretty sure I didn't need it for Debian (look at debian-ET_2012_05.cfg, which has to be used for the current release because of the changes with MPI).

Frank

[Roland Haas]

I'll take this as a "please apply". Indeed for debian (stable) one does not need to specify mpl. I needed for the Ubuntu based Debian mint and suspect that Debian will also need it soon (maybe already needs in in testing): http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653616

The reason is a change in ld's behaviour which causes ld to no longer automatically link in all dependencies of shared libraries.

This is all for the current trunk version (upcoming release), so I did not test with the ET_2012_05.cfg file at all.