diff --git a/common/platforms/platform_unix.h b/common/platforms/platform_unix.h
index 50f69e941..20e4f2f04 100644
--- a/common/platforms/platform_unix.h
+++ b/common/platforms/platform_unix.h
@@ -51,13 +51,24 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#ifdef __APPLE__
+#include <machine/endian.h>
+#ifndef BYTE_ORDER
+#define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
+#define BIG_ENDIAN __DARWIN_BIG_ENDIAN
+#define PDP_ENDIAN __DARWIN_PDP_ENDIAN
+#define BYTE_ORDER __DARWIN_BYTE_ORDER
+#endif
+#endif
+
 /*
  * osx correctly avoids defining strtoll when compiling in strict ansi mode.
  * c++ 11 standard defines strtoll as well.
  * We require strtoll, and if your embedded pre-c99 compiler lacks one, please
  * implement a shim.
  */
-#if !(defined(__cplusplus) && __cplusplus >= 201103L) && !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
+#if !(defined(__cplusplus) && __cplusplus >= 201103L) && \
+    !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
 long long strtoll(const char *, char **, int);
 #endif
 
diff --git a/mongoose/mongoose.h b/mongoose/mongoose.h
index 7f1ecb0a5..ae34e7810 100644
--- a/mongoose/mongoose.h
+++ b/mongoose/mongoose.h
@@ -342,13 +342,24 @@ typedef struct _stati64 cs_stat_t;
 #include <sys/types.h>
 #include <unistd.h>
 
+#ifdef __APPLE__
+#include <machine/endian.h>
+#ifndef BYTE_ORDER
+#define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
+#define BIG_ENDIAN __DARWIN_BIG_ENDIAN
+#define PDP_ENDIAN __DARWIN_PDP_ENDIAN
+#define BYTE_ORDER __DARWIN_BYTE_ORDER
+#endif
+#endif
+
 /*
  * osx correctly avoids defining strtoll when compiling in strict ansi mode.
  * c++ 11 standard defines strtoll as well.
  * We require strtoll, and if your embedded pre-c99 compiler lacks one, please
  * implement a shim.
  */
-#if !(defined(__cplusplus) && __cplusplus >= 201103L) && !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
+#if !(defined(__cplusplus) && __cplusplus >= 201103L) && \
+    !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
 long long strtoll(const char *, char **, int);
 #endif
 
diff --git a/v7/v7.c b/v7/v7.c
index 629eaa833..cbdec1f7b 100644
--- a/v7/v7.c
+++ b/v7/v7.c
@@ -338,13 +338,24 @@ typedef struct _stati64 cs_stat_t;
 #include <sys/types.h>
 #include <unistd.h>
 
+#ifdef __APPLE__
+#include <machine/endian.h>
+#ifndef BYTE_ORDER
+#define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
+#define BIG_ENDIAN __DARWIN_BIG_ENDIAN
+#define PDP_ENDIAN __DARWIN_PDP_ENDIAN
+#define BYTE_ORDER __DARWIN_BYTE_ORDER
+#endif
+#endif
+
 /*
  * osx correctly avoids defining strtoll when compiling in strict ansi mode.
  * c++ 11 standard defines strtoll as well.
  * We require strtoll, and if your embedded pre-c99 compiler lacks one, please
  * implement a shim.
  */
-#if !(defined(__cplusplus) && __cplusplus >= 201103L) && !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
+#if !(defined(__cplusplus) && __cplusplus >= 201103L) && \
+    !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)
 long long strtoll(const char *, char **, int);
 #endif