Cleaner installation

Makefile

+PREFIX=/usr/local
 
 SOURCES = libfasta/fasta_header_parser.c \
 		  libfasta/fasta_seq_writer.c \
@@ -44,3 +45,12 @@ $(LIBFILE): $(OBJECTS)
 	ar -cr $@ $?
 	$(RANLIB) $@
 
+install: all
+	install -d $(DESTDIR)$(PREFIX)/lib/
+	install -m 644 $(LIBFILE) $(DESTDIR)$(PREFIX)/lib/
+	install -d $(DESTDIR)$(PREFIX)/include/
+	for lib in libfasta liblcs libsse libutils libfile ; do \
+		install -d $(DESTDIR)$(PREFIX)/include/$$lib ; \
+		cp $$lib/*.h $(DESTDIR)$(PREFIX)/include/$$lib ; \
+	done
+