[GRASS5] 5.7: making Freetype optional

[Glynn Clements]

Markus Neteler wrote:

> I have made several changes, now it seems to work (please test with and
> without Freetype). However, I was not quite lucky with defining functions
> static. So I used ifdefs there as well (sorry, I'm still geographer).

I've committed a less invasive fix, that only changes Text3.c and the
Makefile.

-- 
Glynn Clements <glynn at gclements.plus.com>