Result of 20070421 snapshot on ppc64

[Srinivasa Ds <srinivasa at in dot ibm dot com>]

Since we are encountering some problem in systemtap.syscall tests. I
have modified the script "testsuite/systemtap.syscall/syscall.exp".

I have added "set flags "additional_flags=-m64"" for 64-bit compilation.
 Now I have 3 less errors.  Iam not sure,if this is the right way or not.
=========================
if {$srcdir == ""} {
        set pattern "*.c"
    } else {
        set pattern "$srcdir/$subdir/*.c"
    }
        set flags "additional_flags=-m64"  ===> added this stmt.
    foreach filename [lsort [glob $pattern]] {
        set file [file tail [string range $filename 0 end-2]]
        if {![installtest_p]} { untested $file; continue }
        target_compile $filename $wd/$file executable $flags
        send_log "Testing ${file}\n"
        set res [exec $srcdir/$subdir/test.tcl $file $filename]
        if {$res == "PASS"} {
==================================
===============================================================
Date: 200704230439
User: root
Kernel: Linux 2.6.21-rc7 #5 SMP Mon Apr 23 09:48:27 IST 2007 ppc64 ppc64
ppc64 GNU/Linux

Testsuite summary of failed tests
FAIL: probefunc:kernel.function("context_switch").inline compilation
(PR 2436)
FAIL: buildok/lket.stp (PR 3833)
FAIL: buildok/process_test.stp
FAIL: buildok/socket.stp
FAIL: systemtap.samples/lket(semantic error)
FAIL: sysopen (1)   (PR 3429)
FAIL: mmap          (PR 4088)
FAIL: readwrite
FAIL: signal
FAIL: statfs
FAIL: 32-bit alarm   (PR 4332)
FAIL: 32-bit clock    (PR 4332)
FAIL: 32-bit mmap     (PR 4088)
FAIL: 32-bit readwrite
FAIL: 32-bit signal   (PR 4332)
FAIL: 32-bit stat     (PR 4332)
FAIL: 32-bit statfs   (PR 4332)
                === systemtap Summary ===

# of expected passes            332
# of unexpected failures        17
# of expected failures          129
# of known failures             4
# of untested testcases         7
# of unsupported tests          2
runtest completed at Mon Apr 23 12:16:54 2007
========================================================