diff -up oneTBB-2020.2/src/tbbmalloc/proxy.cpp.orig oneTBB-2020.2/src/tbbmalloc/proxy.cpp
--- oneTBB-2020.2/src/tbbmalloc/proxy.cpp.orig	2020-03-31 06:40:13.752296189 -0600
+++ oneTBB-2020.2/src/tbbmalloc/proxy.cpp	2020-03-31 06:42:52.611900760 -0600
@@ -146,15 +146,7 @@ static inline void initPageSize()
    1) detection that the proxy library is loaded
    2) check that dlsym("malloc") found something different from our replacement malloc
 */
-// Starting from GCC 9, the -Wmissing-attributes warning was extended for alias below
-#if __GNUC__ == 9
-    #pragma GCC diagnostic push
-    #pragma GCC diagnostic ignored "-Wmissing-attributes"
-#endif
-extern "C" void *__TBB_malloc_proxy(size_t) __attribute__ ((alias ("malloc")));
-#if __GNUC__ == 9
-    #pragma GCC diagnostic pop
-#endif
+extern "C" void *__TBB_malloc_proxy(size_t) __attribute__ ((alias ("malloc"), copy (malloc)));
 
 static void *orig_msize;
 
@@ -296,25 +288,17 @@ struct mallinfo mallinfo() __THROW
 size_t dlmalloc_usable_size(const void *ptr) __attribute__ ((alias ("malloc_usable_size")));
 #else // __ANDROID__
 // C11 function, supported starting GLIBC 2.16
-void *aligned_alloc(size_t alignment, size_t size) __attribute__ ((alias ("memalign")));
+void *aligned_alloc(size_t alignment, size_t size) __attribute__ ((alias ("memalign"), copy (memalign)));
 // Those non-standard functions are exported by GLIBC, and might be used
 // in conjunction with standard malloc/free, so we must ovberload them.
 // Bionic doesn't have them. Not removing from the linker scripts,
 // as absent entry points are ignored by the linker.
 
-// Starting from GCC 9, the -Wmissing-attributes warning was extended for aliases below
-#if __GNUC__ == 9
-    #pragma GCC diagnostic push
-    #pragma GCC diagnostic ignored "-Wmissing-attributes"
-#endif
-void *__libc_malloc(size_t size) __attribute__ ((alias ("malloc")));
-void *__libc_calloc(size_t num, size_t size) __attribute__ ((alias ("calloc")));
-void *__libc_memalign(size_t alignment, size_t size) __attribute__ ((alias ("memalign")));
-void *__libc_pvalloc(size_t size) __attribute__ ((alias ("pvalloc")));
-void *__libc_valloc(size_t size) __attribute__ ((alias ("valloc")));
-#if __GNUC__ == 9
-    #pragma GCC diagnostic pop
-#endif
+void *__libc_malloc(size_t size) __attribute__ ((alias ("malloc"), copy (malloc)));
+void *__libc_calloc(size_t num, size_t size) __attribute__ ((alias ("calloc"), copy (calloc)));
+void *__libc_memalign(size_t alignment, size_t size) __attribute__ ((alias ("memalign"), copy (memalign)));
+void *__libc_pvalloc(size_t size) __attribute__ ((alias ("pvalloc"), copy (pvalloc)));
+void *__libc_valloc(size_t size) __attribute__ ((alias ("valloc"), copy (valloc)));
 
 // call original __libc_* to support naive replacement of free via __libc_free etc
 void __libc_free(void *ptr)

Diff finished.  Tue Mar 31 06:43:27 2020