(orte|ompi|oshmem)*info tools: convert to opal_dl interface

Noe that this commit removes option:lt_dladvise from the various
"info" tools output.  This technically breaks our CLI "ABI" because
we're not deprecating it / replacing it with an alias to some other
"into" tool output.

Although the dl/libltdl component contains an "have_lt_dladvise" MCA
var that contains the same information, the "option:lt_dladvise"
output from the various "info" tools is *not* an MCA var, and
therefore we can't alias it.  So it just has to die.

ompi/tools/ompi_info/param.c

@@ -118,8 +118,7 @@ void ompi_info_do_config(bool want_all)
     char *fortran_usempif08_profiling;
     char *cxxexceptions;
     char *threads;
-    char *want_libltdl;
-    char *have_ltdl_advise;
+    char *have_dl;
 #if OMPI_RTE_ORTE
     char *mpirun_prefix_by_default;
 #endif
@@ -259,8 +258,7 @@ void ompi_info_do_config(bool want_all)
     fortran_mpifh_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_MPIFH_BINDINGS) ? "yes" : "no";
     fortran_usempi_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_USEMPI_BINDINGS) ? "yes" : "no";
     fortran_usempif08_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_USEMPIF08_BINDINGS) ? "yes" : "no";
-    want_libltdl = OPAL_WANT_LIBLTDL ? "yes" : "no";
-    have_ltdl_advise = OPAL_HAVE_LTDL_ADVISE ? "yes" : "no";
+    have_dl = OPAL_HAVE_DL_SUPPORT ? "yes" : "no";
 #if OMPI_RTE_ORTE
     mpirun_prefix_by_default = ORTE_WANT_ORTERUN_PREFIX_BY_DEFAULT ? "yes" : "no";
 #endif
@@ -620,8 +618,7 @@ void ompi_info_do_config(bool want_all)
     opal_info_out("MPI parameter check", "option:mpi-param-check", paramcheck);
     opal_info_out("Memory profiling support", "option:mem-profile", memprofile);
     opal_info_out("Memory debugging support", "option:mem-debug", memdebug);
-    opal_info_out("libltdl support", "option:dlopen", want_libltdl);
-    opal_info_out("lt_dladvise support", "option:lt_dladvise", have_ltdl_advise);
+    opal_info_out("dl support", "option:dlopen", have_dl);
     opal_info_out("Heterogeneous support", "options:heterogeneous", heterogeneous);
 #if OMPI_RTE_ORTE
     opal_info_out("mpirun default --prefix", "mpirun:prefix_by_default", 

orte/tools/orte-info/param.c

@@ -339,8 +339,7 @@ void orte_info_do_config(bool want_all)
     char *memdebug;
     char *debug;
     char *threads;
-    char *want_libltdl;
-    char *have_ltdl_advise;
+    char *have_dl;
     char *orterun_prefix_by_default;
     char *wtime_support;
     char *symbol_visibility;
@@ -351,8 +350,7 @@ void orte_info_do_config(bool want_all)
     memprofile = OPAL_ENABLE_MEM_PROFILE ? "yes" : "no";
     memdebug = OPAL_ENABLE_MEM_DEBUG ? "yes" : "no";
     debug = OPAL_ENABLE_DEBUG ? "yes" : "no";
-    want_libltdl = OPAL_WANT_LIBLTDL ? "yes" : "no";
-    have_ltdl_advise = OPAL_HAVE_LTDL_ADVISE ? "yes" : "no";
+    have_dl = OPAL_HAVE_DL_SUPPORT ? "yes" : "no";
     orterun_prefix_by_default = ORTE_WANT_ORTERUN_PREFIX_BY_DEFAULT ? "yes" : "no";
     wtime_support = OPAL_TIMER_USEC_NATIVE ? "native" : "gettimeofday";
     symbol_visibility = OPAL_C_HAVE_VISIBILITY ? "yes" : "no";
@@ -423,8 +421,7 @@ void orte_info_do_config(bool want_all)
     orte_info_out("Internal debug support", "option:debug", debug);
     orte_info_out("Memory profiling support", "option:mem-profile", memprofile);
     orte_info_out("Memory debugging support", "option:mem-debug", memdebug);
-    orte_info_out("libltdl support", "option:dlopen", want_libltdl);
-    orte_info_out("lt_dladvise support", "option:lt_dladvise", have_ltdl_advise);
+    orte_info_out("dl support", "option:dlopen", have_dl);
     orte_info_out("Heterogeneous support", "options:heterogeneous", heterogeneous);
     orte_info_out("orterun default --prefix", "orterun:prefix_by_default", 
                   orterun_prefix_by_default);

oshmem/tools/oshmem_info/param.c

@@ -108,8 +108,7 @@ void oshmem_info_do_config(bool want_all)
     char *fortran_usempif08_profiling;
     char *cxxexceptions;
     char *threads;
-    char *want_libltdl;
-    char *have_ltdl_advise;
+    char *have_dl;
 #if OMPI_RTE_ORTE
     char *mpirun_prefix_by_default;
 #endif
@@ -234,8 +233,7 @@ void oshmem_info_do_config(bool want_all)
     fortran_mpifh_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_MPIFH_BINDINGS) ? "yes" : "no";
     fortran_usempi_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_USEMPI_BINDINGS) ? "yes" : "no";
     fortran_usempif08_profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_BUILD_FORTRAN_USEMPIF08_BINDINGS) ? "yes" : "no";
-    want_libltdl = OPAL_WANT_LIBLTDL ? "yes" : "no";
-    have_ltdl_advise = OPAL_HAVE_LTDL_ADVISE ? "yes" : "no";
+    have_dl = OPAL_HAVE_DL_SUPPORT ? "yes" : "no";
 #if OMPI_RTE_ORTE
     mpirun_prefix_by_default = ORTE_WANT_ORTERUN_PREFIX_BY_DEFAULT ? "yes" : "no";
 #endif
@@ -568,8 +566,7 @@ void oshmem_info_do_config(bool want_all)
     opal_info_out("MPI parameter check", "option:mpi-param-check", paramcheck);
     opal_info_out("Memory profiling support", "option:mem-profile", memprofile);
     opal_info_out("Memory debugging support", "option:mem-debug", memdebug);
-    opal_info_out("libltdl support", "option:dlopen", want_libltdl);
-    opal_info_out("lt_dladvise support", "option:lt_dladvise", have_ltdl_advise);
+    opal_info_out("dl support", "option:dlopen", have_dl);
     opal_info_out("Heterogeneous support", "options:heterogeneous", heterogeneous);
 #if OMPI_RTE_ORTE
     opal_info_out("mpirun default --prefix", "mpirun:prefix_by_default",