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Subject: [OMPI devel] openib Dynamic SL opensm-devel usage
From: TERRY DONTJE (terry.dontje_at_[hidden])
Date: 2012-06-18 07:06:56


I've ran into an issue compiling openib's Dynamic SL support on a RH
6.2 based system with the Oracle Studio compilers.

Turns out if I compile btl_openib_connect_sl.c with the Oracle Studio
compilers with the "-g" option the compiler compiles some static inline
functions in ib_types.h standalone (as opposed to ignoring the functions
since they are not called in the btl_openib_connect_sl.c source). This
creates a dependency on the symbol ib_error_str in
btl_openib_connect_sl.o . Note this symbol is defined in libosmcomp.so.

My question is should btl_openib_connect_sl.c be linking to
libosmcomp.so since btl_openib_connect_sl.c is including ib_types.h or
is there an assumption being made that btl_openib_connect_sl.c is just
using macros/defines provided by the header and nothing requiring access
to libosmcomp.so?

I ask this because I can make my original issue go away on RH 5.X
systems if I link in libosmcomp.so however, this library doesn't exist
on RH 6.2 systems without RH 5 compat headers package and doesn't have a
32 bit version on RH 6.2 systems at all. The point is if I try to fix
the libosmcomp.so dependency by doing an AC_CHECK_LIB that RH 6.X system
will actually stop configuring in Dynamic SL.

-- 
Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle *- Performance Technologies*
95 Network Drive, Burlington, MA 01803
Email terry.dontje_at_[hidden] <mailto:terry.dontje_at_[hidden]>