🚀 go-pugleaf

Here is a strange gotcha that will probably only affect people who
link Fortran packages (like HBOOK) into non-Fortran (C, C++) code, and
possibly some others.  It caused me some temporary confusion, so I
thought I would share the solution.

The Fortran run-time library file "libxlf.a" is not present in the
/usr/lib directories of any of the pinto machines that I have checked.
Therefore, although AIX allows for you to link to this library as a
"sharable" (thereby reducing the size of your executable), you must
not do this, or else your code will not run when submitted via bsub.
You will get error messages like the following:
  Could not load program /u/ei/gas/my_analysis/pedestals 
  Could not load library libxlf.a[shr.o]
  Error was: No such file or directory

The xlf command itself links in libxlf.a statically be default, so
pure Fortran code should work fine, unless you've made a special
effort to have the library linked in the sharable manner.  On the
other hand, it seems that "g++" links in libraries as sharables
whenever it can, unless you specify the "-static" option.  Therefore,
my C++ code which calls HBOOK failed as above when bsub'ed (but ran
fine on morgan05) until I re-created the executable with the -static
option.

Hope that's helpful to someone.
							-Glenn