Fix the fix -- if we're not compiling the profiling layer, then we

cannot include the PMPI_WTIME|WTICK functions in the external and
double precision statements because some compilers complain about
this.  Instead, we need to use the macro that is defined by
configure.ac (MPIF_H_PMPI_W_FUNCS).  This unfortunately means that we
need to generate mpif.h (in addition to mpif-config.h) because the
"external" statement is toxic to F90 compilers.

This commit was SVN r10464.

configure.ac

@@ -1107,6 +1107,7 @@ AC_CONFIG_FILES([
     ompi/Makefile
     ompi/etc/Makefile
     ompi/include/Makefile
+    ompi/include/mpif.h
     ompi/include/mpif-config.h
 
     ompi/datatype/Makefile

ompi/include/mpif.h.in

@@ -74,6 +74,6 @@
 !     
 !     double precision functions
 !     
-      external MPI_WTIME, MPI_WTICK
+      external MPI_WTIME, MPI_WTICK @MPIF_H_PMPI_W_FUNCS@
-      double precision MPI_WTIME, MPI_WTICK
+      double precision MPI_WTIME, MPI_WTICK @MPIF_H_PMPI_W_FUNCS@