[PVFS-developers] readlink: making PGI 4.0-2 happy

[Robert Latham]

In req.h, the mreq struct defines a 'struct readlink' w/o any members.
The portland group compiler doesn't like this.   Any objections to the
following patch?  PGI-4.0-2 doesn't like the linux header files in
/usr/include, so this patch is not sufficent to build pvfs itself w/
PGI's compiler.  It will, however, make it possible to build
MPICH+ROMIO+PVFS with pgcc.

This introduces yet another change in the network protocol, but leaves
the on-disk format the same. 

==rob

Index: include/req.h
===================================================================
RCS file: /projects/cvsroot/pvfs/include/req.h,v
retrieving revision 1.30
diff -u -w -p -r1.30 req.h
--- include/req.h       22 Oct 2003 11:17:46 -0000      1.30
+++ include/req.h       2 Feb 2004 20:37:57 -0000
@@ -133,6 +133,7 @@ struct mreq {
                        int32_t soft; /* Do we need a hard or soft link? */
                } link;
                struct {
+                                 int64_t dummy;  /* PGI 4.0-2 doesn't like empty structures */
                        /* name of the link follows the mreq */
                } readlink;
        } req;



-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA                B29D F333 664A 4280 315B