Do not modify original wheel if name is not changed

manylinux_utils.sh

@@ -10,18 +10,29 @@ function get_platform {
 }
 
 function repair_wheelhouse {
+	# Runs 'auditwheel repair' over all wheels in a directory
+	# If the wheel is not renamed by the repair process,
+	# then the original wheel will be left unmodified
     local in_dir=$1
     local out_dir=${2:-$in_dir}
     for whl in $in_dir/*.whl; do
         if [[ $whl == *none-any.whl ]]; then  # Pure Python wheel
             if [ "$in_dir" != "$out_dir" ]; then cp $whl $out_dir; fi
         else
-            wheel_count=$(find $out_dir -name *.whl | wc -l)
-            auditwheel repair $whl -w $out_dir/
-            if [[ $(find $out_dir -name *.whl | wc -l) -gt $wheel_count ]]; then
+            local tmpdir=$(mktemp -d -t)
+            
+            auditwheel repair $whl -w $tmpdir/
+            
+            local built=$(find $tmpdir -name *.whl)
+            if [ $(basename $built) == $(basename $whl) ]; then
+                if [ "$in_dir" != "$out_dir" ]; then cp $whl $out_dir; fi
+            else
+                cp $built $out_dir
+                
                 # Remove unfixed if writing into same directory
                 if [ "$in_dir" == "$out_dir" ]; then rm $whl; fi
             fi
+            rm -rf $tmpdir
         fi
     done
     chmod -R a+rwX $out_dir