Disable some threads tests on m68k for now due to missing TLS.

A backport from downstream at Debian:

perl (5.14.0-1) debian/m68k_thread_stress.diff

Subject: Disable some threads tests on m68k for now due to missing TLS.
Closes: #495826, #517938

2 files changed, 10 insertions, 0 deletions

diff --git a/dist/threads-shared/t/stress.t b/dist/threads-shared/t/stress.t
index adfd1eda95..8573f1abd8 100644
--- a/dist/threads-shared/t/stress.t
+++ b/dist/threads-shared/t/stress.t
@@ -11,6 +11,10 @@ BEGIN {
         print("1..0 # SKIP Broken under HP-UX 10.20\n");
         exit(0);
     }
+    if ($^O eq 'linux' && $Config{archname} =~ /^m68k/) {
+        print("1..0 # Skip: no TLS on m68k yet <http://bugs.debian.org/495826>\n");
+        exit(0);
+    }
 }
 
 use ExtUtils::testlib;
diff --git a/dist/threads-shared/t/waithires.t b/dist/threads-shared/t/waithires.t
index 3c3e85263f..349c5b41ca 100644
--- a/dist/threads-shared/t/waithires.t
+++ b/dist/threads-shared/t/waithires.t
@@ -16,6 +16,12 @@ BEGIN {
     if (! eval 'use Time::HiRes "time"; 1') {
         Test::skip_all('Time::HiRes not available');
     }
+
+    if ($^O eq 'linux' && $Config{archname} =~ /^m68k/) {
+        print("1..0 # Skip: no TLS on m68k yet <http://bugs.debian.org/495826>\n");
+        exit(0);
+    }
+
 }
 
 use ExtUtils::testlib;