diff --git a/bindings/java/src/jni/javasigar.c b/bindings/java/src/jni/javasigar.c
index d29647e8..6d53a099 100644
--- a/bindings/java/src/jni/javasigar.c
+++ b/bindings/java/src/jni/javasigar.c
@@ -20,7 +20,7 @@
 #include "javasigar_generated.h"
 #include "javasigar.h"
 
-#if defined(__osf__) || defined(__LP64__)
+#ifdef SIGAR_64BIT
 #define SIGAR_POINTER_LONG
 #endif
 
diff --git a/include/sigar_private.h b/include/sigar_private.h
index 68768148..31a5b807 100644
--- a/include/sigar_private.h
+++ b/include/sigar_private.h
@@ -1,6 +1,10 @@
 #ifndef SIGAR_PRIVATE_DOT_H
 #define SIGAR_PRIVATE_DOT_H
 
+#if defined(__LP64__) || defined(__powerpc64__) || defined(__osf__)
+#define SIGAR_64BIT
+#endif
+
 #include "sigar_log.h"
 
 #include <stdlib.h>
diff --git a/src/os/linux/linux_sigar.c b/src/os/linux/linux_sigar.c
index 965fc293..a5edf3ee 100644
--- a/src/os/linux/linux_sigar.c
+++ b/src/os/linux/linux_sigar.c
@@ -1573,7 +1573,7 @@ static SIGAR_INLINE unsigned int hex2int(const char *x, int len)
 
 #define HEX_ENT_LEN 8
 
-#ifdef __LP64__
+#ifdef SIGAR_64BIT
 #define ROUTE_FMT "%16s %128s %128s %X %ld %ld %ld %128s %ld %ld %ld\n"
 #else
 #define ROUTE_FMT "%16s %128s %128s %X %lld %lld %lld %128s %lld %lld %lld\n"