Fix endianness checks on ppc64

common/arch.h

@@ -37,6 +37,20 @@
 #endif
 
 #if !(defined(L_ENDIAN) || defined(B_ENDIAN))
+#if defined(__powerpc64__)
+# if defined(__BIG_ENDIAN__)
+#  define B_ENDIAN
+# else
+#  define L_ENDIAN
+# endif
+#endif
+#endif
+
+#if !(defined(L_ENDIAN) || defined(B_ENDIAN))
+#if defined(__sparc__) || defined(__PPC__) || defined(__ppc__) || \
+    defined(__hppa__)
+#define B_ENDIAN
+#else
 # if defined(__sparc__) || defined(__PPC__) || defined(__ppc__) || \
      defined(__hppa__)
 #  define B_ENDIAN
@@ -45,6 +59,7 @@
 # endif
 #endif
 #endif
+#endif
 
 /* check if we need to align data */
 #if !(defined(NEED_ALIGN) || defined(NO_NEED_ALIGN))