diff --git a/fc-cache/fc-cache.c b/fc-cache/fc-cache.c
index d265350..deb4aa8 100644
--- a/fc-cache/fc-cache.c
+++ b/fc-cache/fc-cache.c
@@ -22,8 +22,6 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "../src/fcarch.h"
-
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #else
@@ -34,6 +32,7 @@
 #endif
 
 #include <fontconfig/fontconfig.h>
+#include "../src/fcarch.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/src/fcarch.c b/src/fcarch.c
index c69397e..09d24b3 100644
--- a/src/fcarch.c
+++ b/src/fcarch.c
@@ -31,12 +31,12 @@
 
 #ifndef FC_ARCHITECTURE
 
-#include "fcarch.h"
-
 /* Make sure the cache structure is consistent with what we expect */
 
 #include "fcint.h"
 
+#include "fcarch.h"
+
 FC_ASSERT_STATIC (1 == sizeof (char));
 FC_ASSERT_STATIC (2 == sizeof (FcChar16));
 FC_ASSERT_STATIC (4 == sizeof (int));
diff --git a/src/fcarch.h b/src/fcarch.h
index 9cabf04..22e6f8e 100644
--- a/src/fcarch.h
+++ b/src/fcarch.h
@@ -46,9 +46,28 @@
  * be64		1234		8		8
  */
 
-#if defined(WORDS_BIGENDIAN) && WORDS_BIGENDIAN
+#ifdef __APPLE__
+# include <machine/endian.h>
+# undef SIZEOF_VOID_P
+# undef ALIGNOF_DOUBLE
+# ifdef __LP64__
+#  define SIZEOF_VOID_P 8
+#  define ALIGNOF_DOUBLE 8
+# else
+#  define SIZEOF_VOID_P 4
+#  define ALIGNOF_DOUBLE 4
+# endif
+#endif
+
+#if defined(__DARWIN_BYTE_ORDER) && __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
+# define FC_ARCH_ENDIAN "le"
+#elif defined(__DARWIN_BYTE_ORDER) && __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
 # define FC_ARCH_ENDIAN "be"
-#else /* !WORDS_BIGENDIAN */
+#elif defined(__DARWIN_BYTE_ORDER) && __DARWIN_BYTE_ORDER == __DARWIN_PDP_ENDIAN
+# define FC_ARCH_ENDIAN "pe"
+#elif defined(WORDS_BIGENDIAN) && WORDS_BIGENDIAN
+# define FC_ARCH_ENDIAN "be"
+#else
 # define FC_ARCH_ENDIAN "le"
 #endif