[GitHub] [incubator-nuttx] yamt commented on a change in pull request #3149: arch/sim/src/sim/up_hostmemory.c: build fix for older macOS versions

[GitBox <gi...@apache.org>]

yamt commented on a change in pull request #3149:
URL: https://github.com/apache/incubator-nuttx/pull/3149#discussion_r599294845



##########
File path: arch/sim/src/sim/up_hostmemory.c
##########
@@ -140,5 +140,22 @@ void *host_calloc(size_t n, size_t elem_size)
 
 void *host_memalign(size_t alignment, size_t size)
 {
+  /* Note: macOS prior to 10.15 (Catalina) doesn't have aligned_alloc().  */
+
+#if !defined(__APPLE__) || \
+   (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
+    __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101500)
   return aligned_alloc(alignment, size);
+#else

Review comment:
       do all other relevant platforms have posix_memalign?




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