Regression test portability: batch of bugs (volume 2)

Fix various regression test portability in tests/bugs.

bug-861542.t
- Avoid syntax specific to GNU sed.

bug-860663.t
- Command argument length is system dependent, and specifying 1000 file
  path may overflow it. Use a C program to do the job in a portable and
  efficient way.
- Add a test that we created the specified amount of files.

bug-858242.c, bug-808400-fcntl.c, bug-808400-flock.c
- fstat64() is Linux-specific. Define it as fstat for other systems.

bug-823081.t
- Use portable tail -n instead of tail --lines

In many tests:
- Do not assume python interpreter name. Use $PYTHON as defined
  in env.rc by configure.

utils/libcxattr.py
- If python version is 2.6 or higher, use a portable mechanism to
  recover errno. The original version is retained for python version
  2.5 and earlier but it only works on Linux.

BUG: 1129939
Change-Id: If2fea1ffec5cc6ab2de426fb200e884450afe61b
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/9097
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/bugs/bug-853258.t b/tests/bugs/bug-853258.t
index 3d4cfba00a2..21e48bd1a8f 100755
--- a/tests/bugs/bug-853258.t
+++ b/tests/bugs/bug-853258.t
@@ -38,7 +38,7 @@ for i in $(seq 0 3); do
 	xattrs="$xattrs $(dht_get_layout $B0/${V0}$i)"
 done
 
-overlap=$(python2 $(dirname $0)/overlap.py $xattrs)
+overlap=$( $PYTHON $(dirname $0)/overlap.py $xattrs)
 # 2863311531 = 0xaaaaaaab = 2/3 overlap
 TEST [ "$overlap" -ge 2863311531 ]