DPI compile fail because of strdup

strdup is not included in C99.

OS: manjaro
GCC: 15.2.1
CLANG: 22.1.1

<img width="1794" height="330" alt="Image" src="https://github.com/user-attachments/assets/b43ca9e3-e911-446f-95a7-80dbe165b03e" />