5.5.3 Platform specific functions

The names for functions (both public and private) intended to be used if compiling for a specific platform should use the following name convention:

     pdf_MODULE-NAME[_PART-NAME]_PLATFORM_...

where platform is the canonical name for the target platform:

gnu

For GNU systems.

posix

For POSIX systems.

win32

For Windows systems.

macos

For Macos X systems.