fortran: Fix ident warning

On OS X, where #pragma ident and #ident aren't supported, the
use of a static const star that was never used was generating
a warning (and, it should be noted, was useless, because the
compiler would optimize it away).  Fix up the ident declaration
so that it is only created once in libmpi_mpifh.la.

Signed-off-by: Brian Barrett <bbarrett@amazon.com>

ompi/mpi/fortran/mpif-h/init_f.c

@@ -22,13 +22,16 @@
 
 #include "ompi_config.h"
 
+#if (OPAL_HAVE_WEAK_SYMBOLS || ! OMPI_BUILD_MPI_PROFILING)
 #if OPAL_CC_USE_PRAGMA_IDENT
 #pragma ident OMPI_IDENT_STRING
 #elif OPAL_CC_USE_IDENT
 #ident OMPI_IDENT_STRING
 #else
-static const char ident[] = OMPI_IDENT_STRING;
+const char ident[] = OMPI_IDENT_STRING;
 #endif
+#endif
+
 
 #include "ompi/mpi/fortran/mpif-h/bindings.h"