Is your feature request related to a problem? Please describe.
I want to use mplibre-native in a cross-platform project that also targets OpenHarmony. Currently, there is no clear guidance or support for running on OpenHarmony, and this makes it hard to integrate.
I’m frustrated because I don’t know if the library can be compiled or adapted smoothly for OpenHarmony.

Describe the solution you'd like
It would be great if:

• Official support for OpenHarmony could be added, or
• At least some documentation/guidance could be provided for cross-platform builds (e.g., how to configure or what to modify).

Describe alternatives you've considered

• Trying to manually adjust the CMake/build system, but without documentation, this is trial-and-error.
• Searching community forums, but couldn’t find much information.

Additional context

• OpenHarmony is becoming more popular in IoT and cross-device projects.
• Adding official or partial support could help expand the library’s adoption.
• Even a minimal doc/example would be very helpful.