Out-of-tree configure (1.0 regression)

Creating the Cygwin package, I noticed that 1.0 can't be compiled
out-of-tree: it doesn't find the files in the "po" directory.

I can tell cygport to first do a recursive symlink of every single file
to simulate building in-tree, or is there an easier patch to Makefile to
solve the problem at the root? =)

-- 
Lapo Luchini - http://lapo.it/