mimalloc: Hide C++ STL allocator implementation on Android

kdrag0n · Gelbpunkt · commit ce361d249f81 · 2022-05-01T14:55:52.000+02:00
When mimalloc is used as the system allocator and compiled as part of
Bionic libc on Android, this header is included in C++ code without the
STL.

Hide the std::allocator interface to fix the build errors.
diff --git a/include/mimalloc.h b/include/mimalloc.h
@@ -397,7 +397,7 @@ mi_decl_nodiscard mi_decl_export void* mi_new_reallocn(void* p, size_t newcount,
 // Implement the C++ std::allocator interface for use in STL containers.
 // (note: see `mimalloc-new-delete.h` for overriding the new/delete operators globally)
 // ---------------------------------------------------------------------------------------------
-#ifdef __cplusplus
+#if defined(__cplusplus) && !defined(ANDROID)
 
 #include <cstddef>     // std::size_t
 #include <cstdint>     // PTRDIFF_MAX
