diff -up player-3.0.2/cmake/internal/FindOS.cmake.s390x player-3.0.2/cmake/internal/FindOS.cmake
--- player-3.0.2/cmake/internal/FindOS.cmake.s390x	2011-05-04 11:34:18.000000000 +0200
+++ player-3.0.2/cmake/internal/FindOS.cmake	2011-05-04 11:35:21.000000000 +0200
@@ -61,6 +61,9 @@ IF (PLAYER_OS_LINUX)
     ELSEIF (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64")
         MESSAGE (STATUS "Linux ppc64 Detected")
         SET (PLAYER_PROC_64BIT TRUE BOOL INTERNAL)
+    ELSEIF (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "s390x")
+        MESSAGE (STATUS "Linux s390x Detected")
+        SET (PLAYER_PROC_64BIT TRUE BOOL INTERNAL)
     ENDIF (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
 ENDIF (PLAYER_OS_LINUX)