installing gFTP with gtk12 instead of gtk20

[Marco Beishuizen]

I'm trying to install gFTP from the ports. When I do a make install, it 
constantly wants to install gtk20 instead of gtk12. Gtk20 isn't installed 
on my machine due to errors during the build, but gtk12 is installed.

According to the gFTP website it shouldn't be a problem to install gFTP 
with gtk12, so how do I force the gFTP-port to install it with gtk12 
instead of gtk20?

PS I'm running FreeBSD-i386 4.10-STABLE.

Thanks in advance,
Marco

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