leveldb.patch

--- port/port_posix.h	2018-03-18 14:43:36.000000000 +0100
+++ port/port_posix2.h	2018-03-18 14:33:01.000000000 +0100
@@ -8,7 +8,7 @@
 #define STORAGE_LEVELDB_PORT_PORT_POSIX_H_
 
 #undef PLATFORM_IS_LITTLE_ENDIAN
-#if defined(OS_MACOSX)
+#if defined(__APPLE__) || defined(MAC_OSX)
   #include <machine/endian.h>
   #if defined(__DARWIN_LITTLE_ENDIAN) && defined(__DARWIN_BYTE_ORDER)
     #define PLATFORM_IS_LITTLE_ENDIAN \
@@ -50,7 +50,7 @@
 #define PLATFORM_IS_LITTLE_ENDIAN (__BYTE_ORDER == __LITTLE_ENDIAN)
 #endif
 
-#if defined(OS_MACOSX) || defined(OS_SOLARIS) || defined(OS_FREEBSD) ||\
+#if defined(__APPLE__) || defined(OS_MACOSX) || defined(OS_SOLARIS) || defined(OS_FREEBSD) ||\
     defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD) ||\
     defined(OS_ANDROID) || defined(OS_HPUX) || defined(CYGWIN)
 // Use fread/fwrite/fflush on platforms without _unlocked variants
@@ -65,7 +65,7 @@
 #define fdatasync fsync
 #endif
 
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) || defined(__APPLE__)
 #define fdatasync(fd) fcntl(fd, F_FULLFSYNC, 0)
 #endif