diff -Naur js-1.8.5.orig/js/src/assembler/wtf/Platform.h js-1.8.5/js/src/assembler/wtf/Platform.h
--- js-1.8.5.orig/js/src/assembler/wtf/Platform.h
+++ js-1.8.5/js/src/assembler/wtf/Platform.h
@@ -129,16 +129,22 @@
|| defined(__POWERPC__) \
|| defined(_M_PPC) \
|| defined(__PPC)
+#if !defined(__ppc64__) && !defined(__PPC64__)
#define WTF_CPU_PPC 1
+#endif
+#if !defined(__LITTLE_ENDIAN__)
#define WTF_CPU_BIG_ENDIAN 1
#endif
+#endif
/* CPU(PPC64) - PowerPC 64-bit */
#if defined(__ppc64__) \
|| defined(__PPC64__)
#define WTF_CPU_PPC64 1
+#if !defined(__LITTLE_ENDIAN__)
#define WTF_CPU_BIG_ENDIAN 1
#endif
+#endif
/* CPU(SH4) - SuperH SH-4 */
#if defined(__SH4__)
diff -Naur js-1.8.5.orig/js/src/configure.in js-1.8.5/js/src/configure.in
--- js-1.8.5.orig/js/src/configure.in
+++ js-1.8.5/js/src/configure.in
@@ -1498,7 +1498,7 @@
CPU_ARCH=x86
;;
-powerpc64 | ppc64)
+powerpc64 | ppc64 | powerpc64le | ppc64le)
CPU_ARCH=ppc64
;;
diff -Naur js-1.8.5/js/src/Makefile.in.ori js-1.8.5/js/src/Makefile.in
--- js-1.8.5/js/src/Makefile.in.ori
+++ js-1.8.5/js/src/Makefile.in
@@ -382,7 +382,7 @@ CPPSRCS += checks.cc \
# END enclude sources for V8 dtoa
#############################################
-ifeq (,$(filter-out aarch64 powerpc powerpc64 sparc sparc64 s390 s390x,$(TARGET_CPU)))
+ifeq (,$(filter-out aarch64 powerpc powerpc64 powerpc64le sparc sparc64 s390 s390x,$(TARGET_CPU)))
VPATH += $(srcdir)/assembler \
$(srcdir)/assembler/wtf \