From fc4c062ffaf28f5aba63b287f3e44f90dfc8d0cb Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Sat, 8 Oct 2011 17:11:10 +0200
Subject: tests: avoid false-positive failures on linux/sparc64

* tests/init.cfg (require_strace_): Detect a version of strace
that fails on linux/sparc64 for 64-bit executables.  Report and
most of the suggested fix from Bruno Haible:
http://thread.gmane.org/gmane.comp.gnu.coreutils.general/1726/focus=1728
---
 tests/init.cfg | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/init.cfg b/tests/init.cfg
index 04abe4faf..915f38a8d 100644
--- a/tests/init.cfg
+++ b/tests/init.cfg
@@ -128,6 +128,15 @@ require_strace_()
 
   strace -qe "$1" echo > /dev/null 2>&1 ||
     skip_ 'strace -qe "'"$1"'" does not work'
+
+  # On some linux/sparc64 systems, strace works fine on 32-bit executables,
+  # but prints only one line of output for every 64-bit executable.
+  strace -o log-help ls --help >/dev/null || framework_failure_
+  n_lines_help=$(wc -l < log-help)
+  rm -f log-help
+  if test $n_lines_help = 0 || test $n_lines_help = 1; then
+    skip_ 'strace produces no more than one line of output'
+  fi
 }
 
 require_setfacl_()
-- 
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