diff -up pegasus/src/Pegasus/Common/Platform_LINUX_SPARC64_GNU.h.orig pegasus/src/Pegasus/Common/Platform_LINUX_SPARC64_GNU.h
--- pegasus/src/Pegasus/Common/Platform_LINUX_SPARC64_GNU.h.orig	2013-08-27 15:26:50.593740210 +0200
+++ pegasus/src/Pegasus/Common/Platform_LINUX_SPARC64_GNU.h	2013-08-27 15:27:12.543825109 +0200
@@ -90,4 +90,7 @@
 # define PEGASUS_HAS_GETIFADDRS
 #endif
 
+/* use POSIX read-write locks on this platform */
+#define PEGASUS_USE_POSIX_RWLOCK
+
 #endif /* Pegasus_Platform_LINUX_SPARC64_GNU_h */
diff -up pegasus/src/Pegasus/Common/Platform_LINUX_SPARCV9_GNU.h.orig pegasus/src/Pegasus/Common/Platform_LINUX_SPARCV9_GNU.h
--- pegasus/src/Pegasus/Common/Platform_LINUX_SPARCV9_GNU.h.orig	2013-08-27 15:25:59.601542527 +0200
+++ pegasus/src/Pegasus/Common/Platform_LINUX_SPARCV9_GNU.h	2013-08-27 15:26:33.232672955 +0200
@@ -90,4 +90,7 @@
 # define PEGASUS_HAS_GETIFADDRS
 #endif
 
+/* use POSIX read-write locks on this platform */
+#define PEGASUS_USE_POSIX_RWLOCK
+
 #endif /* Pegasus_Platform_LINUX_SPARCV9_GNU_h */