ClusterFuzz: Bundle mimalloc (#7450)

The emsdk's linux builds now include mimalloc, so we must bundle
it for ClusterFuzz, same as we already do for libc++.

Author: kripken

scripts/bundle_clusterfuzz.py

@@ -70,6 +70,7 @@
      up). Note that these may take longer to show up than 1 and 2.
 '''
 
+import glob
 import os
 import subprocess
 import sys
@@ -135,11 +136,15 @@
             tar.add(libbinaryen, arcname=f'lib/libbinaryen{suffix}')
 
             # The emsdk build also includes some more necessary files.
-            for name in [f'libc++{suffix}', f'libc++{suffix}.2', f'libc++{suffix}.2.0']:
-                path = os.path.join(binaryen_lib, name)
-                if os.path.exists(path):
-                    print(f'  ......... : {path}')
-                    tar.add(path, arcname=f'lib/{name}')
+            for lib in ['libc++', 'libmimalloc']:
+                # Include the main name plus any NAME.2.0 and such.
+                # TODO: Using ldd/otool would be better, to find the actual
+                #       dependencies of libbinaryen. Using glob like this will
+                #       pick up stale contents in the directory.
+                full_lib = os.path.join(binaryen_lib, lib) + suffix
+                for path in glob.glob(f'{full_lib}*'):
+                    print(f'  ............. : {path}')
+                    tar.add(path, arcname=f'lib/{os.path.basename(path)}')
 
     # Add tests we will use as initial content under initial/. We put all the
     # tests from the test suite there.