The Makefile implicit archive format ('Archives' in make.info)  from, e.g.
'libfdutils.a($(LIBFILES))' does not support parallel operations. Convert to
parallel-safe structure.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

--- fdutils-5.5-20060227.orig/src/Makefile.in	2019-03-17 13:25:43.891918479 -0700
+++ fdutils-5.5-20060227/src/Makefile.in	2019-03-17 13:30:05.067424657 -0700
@@ -67,7 +67,7 @@
 lex.%.c: %.lex
 	lex -P$* $<

-libfdutils.a: libfdutils.a($(LIBFILES))
-	ranlib libfdutils.a
+libfdutils.a: $(LIBFILES)
+	ar rcs $@ $^
 
 floppycontrol.o getfdprm setfdprm: /usr/include/linux/fd.h