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-rw-r--r--cpukit/posix/src/pthreadattrcompare.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/cpukit/posix/src/pthreadattrcompare.c b/cpukit/posix/src/pthreadattrcompare.c
index 6a3b625be1..26ab28db33 100644
--- a/cpukit/posix/src/pthreadattrcompare.c
+++ b/cpukit/posix/src/pthreadattrcompare.c
@@ -32,7 +32,10 @@ int rtems_pthread_attribute_compare(
if ( attr1->is_initialized != attr2->is_initialized )
return 1;
- if ( attr1->stackaddr != attr2->stackaddr )
+ if (
+ attr1->stackaddr != NULL &&
+ attr2->stackaddr != NULL &&
+ attr1->stackaddr != attr2->stackaddr )
return 1;
if ( attr1->stacksize != attr2->stacksize )