Fix libomp.a copy logic to handle multiple glob matches

Iterate over expanded glob patterns and select the first regular file
to avoid "cp: target 'libomp.a' is not a directory" errors when
multiple GCC versions are present.

Author: taoeffect

src/quickjs/dune

@@ -63,10 +63,12 @@
       /usr/lib/gcc/aarch64-redhat-linux/*/libgomp.a
     \"
     for p in $PAWTHS; do
-      if ls $p >/dev/null 2>&1; then
-        cp $p \"$OUT\"
-        exit 0
-      fi
+      for matched_path in $p; do
+        if [ -f "$matched_path" ]; then
+          cp "$matched_path" "$OUT"
+          exit 0
+        fi
+      done
     done
     echo \"Error: Could not find libomp.a or libgomp.a\" >&2
     exit 1