deps: fix V8 build on SmartOS

PR-URL: https://github.com/nodejs/node/pull/44741
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

common.gypi

@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.5',
+    'v8_embedder_string': '-node.6',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/base/platform/memory.h

@@ -23,9 +23,9 @@
 #include <malloc.h>
 #endif  // !V8_OS_DARWIN
 
-#if (V8_OS_POSIX && !V8_OS_AIX) || V8_OS_WIN
+#if (V8_OS_POSIX && !V8_OS_AIX && !V8_OS_SOLARIS) || V8_OS_WIN
 #define V8_HAS_MALLOC_USABLE_SIZE 1
-#endif  // (V8_OS_POSIX && !V8_OS_AIX) || V8_OS_WIN
+#endif  // (V8_OS_POSIX && !V8_OS_AIX && !V8_OS_SOLARIS) || V8_OS_WIN
 
 namespace v8::base {