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-rw-r--r--src/tools/linux/md2core/minidump-2-core.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/tools/linux/md2core/minidump-2-core.cc b/src/tools/linux/md2core/minidump-2-core.cc
index 941586e9..a60be323 100644
--- a/src/tools/linux/md2core/minidump-2-core.cc
+++ b/src/tools/linux/md2core/minidump-2-core.cc
@@ -33,6 +33,7 @@
#include <elf.h>
#include <errno.h>
+#include <limits.h>
#include <link.h>
#include <stdio.h>
#include <stdlib.h>
@@ -54,7 +55,7 @@
#include "third_party/lss/linux_syscall_support.h"
#include "tools/linux/md2core/minidump_memory_range.h"
-#if __WORDSIZE == 64
+#if ULONG_MAX == 0xffffffffffffffff
#define ELF_CLASS ELFCLASS64
#else
#define ELF_CLASS ELFCLASS32