PJproject version macro

[dan@xxxxxxxxxxxx (Dan Arrhenius)]

Is there some '#define' to use for compile-time check for the version of pjproject. I want 
to make code that's compatible with both version 1.0.3 and version 1.4.

for example:

#if PJPROJECT_VERSION >= x
/* do something */
#else
/* do something else */
#endif


Thanks
/Dan