sawfish-2.0 didn't want to compile on my configuration.
 
i found a typo in gtk_style.c line 100:
 
98:  /* If GTK_MINOR_VERSION is not set 2 we are using gtk+ 1.3.x or 2.0
99:     so these two members are no more */
100: #if (GTK_MINOR_VERSION == 0)
 
i believe the author meant:
 
100: #if (GTK_MINOR_VERSION != 0)
 
 
i changed it and it compiled just fine