[gtkada] GtkAda on mac os x 10.2.8

[Thomas De Contes]

[tdecontes:GtkAda-2Folder/GtkAda-2Folder/GtkAda-2.2.1] thomas% 
./configure --prefix=/Users/thomas/bin/autoinstall
checking build system type... configure: error: cannot guess build 
type; you must specify one
[tdecontes:GtkAda-2Folder/GtkAda-2Folder/GtkAda-2.2.1] thomas%

btw, what should i do, knowing where is gtk ?
i have installed it with darwinports at 
/Users/thomas/Public/essais/gtk/darwinports/res/
so i just did "setenv PATH 
/Users/thomas/Public/essais/gtk/darwinports/res/bin:$PATH" before 
configure