diff --git a/src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp b/src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp
index 3a74f8c0cf..bbd87cde72 100644
--- a/src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp
+++ b/src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp
@@ -47,7 +47,9 @@
 #include "opto/runtime.hpp"
 #endif
 
+#ifndef _ALLBSD_SOURCE
 #include <alloca.h>
+#endif
 
 #define __ masm->
 
diff --git a/src/hotspot/cpu/ppc/vm_version_ppc.cpp b/src/hotspot/cpu/ppc/vm_version_ppc.cpp
index e5a6238380..b6a6a29482 100644
--- a/src/hotspot/cpu/ppc/vm_version_ppc.cpp
+++ b/src/hotspot/cpu/ppc/vm_version_ppc.cpp
@@ -37,7 +37,9 @@
 #include "utilities/globalDefinitions.hpp"
 #include "vm_version_ppc.hpp"
 
+#ifndef _ALLBSD_SOURCE
 #include <sys/sysinfo.h>
+#endif
 
 #if defined(LINUX) && defined(VM_LITTLE_ENDIAN)
 #include <sys/auxv.h>