Fix ST_CTIME_NSEC and ST_MTIME_NSEC macros on Android.

diff --git a/compat/posix.h b/compat/posix.h
index 067a00f33b..c839d9ca25 100644
--- a/compat/posix.h
+++ b/compat/posix.h
@@ -476,6 +476,10 @@ int git_qsort_s(void *base, size_t nmemb, size_t size,
 		BUG("qsort_s() failed");			\
 } while (0)
 
+#ifdef __ANDROID__
+#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctime_nsec))
+#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtime_nsec))
+#else
 #ifdef NO_NSEC
 #undef USE_NSEC
 #define ST_CTIME_NSEC(st) 0
@@ -489,6 +493,7 @@ int git_qsort_s(void *base, size_t nmemb, size_t size,
 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
 #endif
 #endif
+#endif
 
 #ifndef va_copy
 /*