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-rw-r--r--tools/testing/selftests/vDSO/parse_vdso.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c
index 200c534cc70e..902b8f9984a1 100644
--- a/tools/testing/selftests/vDSO/parse_vdso.c
+++ b/tools/testing/selftests/vDSO/parse_vdso.c
@@ -26,7 +26,7 @@
/* And here's the code. */
#ifndef ELF_BITS
-# if ULONG_MAX > 0xffffffffUL
+# if __SIZEOF_LONG__ >= 8
# define ELF_BITS 64
# else
# define ELF_BITS 32