duplicate symbols in static libraries

[Johan Vos]

Hi,

When creating static libraries for the native parts of JavaFX, I ran into
an issue with symbols exposed in more than 1 library:
checkAndClearException() is declared and used in both libjavafx_font.a and
in libprism_sw.a

I have a simple fix for this that adds a prefix to the symbol in the
prism-sw code:
https://github.com/johanvos/jfx/commit/9180a73b51f60b0c6fe6e89184c4cba88fcf1696

However, I'm not sure this is the generally agreed approach. Are there
opinions/guidelines for this?

- Johan