Index: otf2-3.0.3/common/utils/src/atomic/UTILS_Atomic.inc.c
===================================================================
--- otf2-3.0.3.orig/common/utils/src/atomic/UTILS_Atomic.inc.c
+++ otf2-3.0.3/common/utils/src/atomic/UTILS_Atomic.inc.c
@@ -61,6 +61,7 @@
 #define INT_TO_PTR( i ) ( i )
 #endif /* ! GCC_ATOMIC_BUILTINS_NEEDS_CASTS */
 
+#include <limits.h>
 
 static const int gcc_memorder[] = {
     __ATOMIC_RELAXED,
@@ -596,6 +597,7 @@ UTILS_Atomic_FetchNand_uint32( uint32_t*
     return __atomic_fetch_nand( ptr, val, gcc_memorder[ memorder ] );
 }
 
+#if UINTPTR_MAX == UINT64_MAX
 STATIC_INLINE uint64_t
 UTILS_Atomic_LoadN_uint64( uint64_t* ptr, UTILS_Atomic_Memorder memorder )
 {
@@ -691,6 +693,7 @@ UTILS_Atomic_FetchNand_uint64( uint64_t*
 {
     return __atomic_fetch_nand( ptr, val, gcc_memorder[ memorder ] );
 }
+#endif
 
 STATIC_INLINE uintptr_t
 UTILS_Atomic_LoadN_uintptr( uintptr_t* ptr, UTILS_Atomic_Memorder memorder )
@@ -1076,6 +1079,7 @@ UTILS_Atomic_FetchNand_int32( int32_t* p
     return __atomic_fetch_nand( ptr, val, gcc_memorder[ memorder ] );
 }
 
+#if UINTPTR_MAX == UINT64_MAX
 STATIC_INLINE int64_t
 UTILS_Atomic_LoadN_int64( int64_t* ptr, UTILS_Atomic_Memorder memorder )
 {
@@ -1171,6 +1175,7 @@ UTILS_Atomic_FetchNand_int64( int64_t* p
 {
     return __atomic_fetch_nand( ptr, val, gcc_memorder[ memorder ] );
 }
+#endif
 
 STATIC_INLINE intptr_t
 UTILS_Atomic_LoadN_intptr( intptr_t* ptr, UTILS_Atomic_Memorder memorder )
