$NetBSD: patch-lib_rb_Makefile.in,v 1.1 2016/05/30 16:03:13 taca Exp $

* Avoid to build again on install stage.

--- lib/rb/Makefile.in.orig	2011-08-11 13:19:12.000000000 +0000
+++ lib/rb/Makefile.in
@@ -70,6 +70,7 @@ am__configure_deps = $(am__aclocal_m4_de
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
+CONFIG_STAMP = config.done
 SOURCES =
 DIST_SOURCES =
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
@@ -493,9 +494,12 @@ uninstall-am: uninstall-info-am
 
 DESTDIR ?= /
 
-all-local:
+all-local: ${CONFIG_STAMP}
+
+${CONFIG_STAMP}:
 	if [ -n "$(RUBY_PREFIX)" ] ; then $(RUBY) setup.rb config --prefix=$(DESTDIR)$(RUBY_PREFIX) --rbdir='$$libdir/ruby' --sodir='$$libdir/ruby' ; elif [ -n "$(DESTDIR)" ] ; then $(RUBY) setup.rb config --prefix=$(DESTDIR) ; else $(RUBY) setup.rb config ; fi
 	$(RUBY) setup.rb setup
+	touch $@
 
 install-exec-hook:
 	$(RUBY) setup.rb install --prefix=$(DESTDIR)