Do not use GNU cp --parents flag

--- Makefile.in.orig	2010-01-12 05:09:19.000000000 +0100
+++ Makefile.in	2010-01-12 05:13:13.000000000 +0100
@@ -37,5 +37,8 @@
 
 	install -g 0 -o 0 -m 755 -d $(prefix)/include
 	install -g 0 -o 0 -m 755 -d $(prefix)/include/colorer
-	cd src/shared; cp --parents `find . -name '*.h'` $(prefix)/include/colorer
+	cd src/shared; for f in `find . -name '*.h'`; do \
+	    mkdir -p $(prefix)/include/colorer/`dirname $$f`; \
+	    cp $$f $(prefix)/include/colorer/`dirname $$f`; \
+	done
 	cd ../..
