$NetBSD: patch-Makefile,v 1.1 2017/03/31 17:19:23 fhajny Exp $

Avoid in-place sed for better portability.

--- Makefile.orig	2017-03-31 17:05:44.915188459 +0000
+++ Makefile
@@ -290,11 +290,12 @@ install: obj/libre2.a obj/so/libre2.$(SO
 	$(INSTALL) obj/so/libre2.$(SOEXT) $(DESTDIR)$(libdir)/libre2.$(SOEXTVER00)
 	ln -sf libre2.$(SOEXTVER00) $(DESTDIR)$(libdir)/libre2.$(SOEXTVER)
 	ln -sf libre2.$(SOEXTVER00) $(DESTDIR)$(libdir)/libre2.$(SOEXT)
-	$(INSTALL_DATA) re2.pc $(DESTDIR)$(libdir)/pkgconfig/re2.pc
-	$(SED_INPLACE) -e "s#@prefix@#${prefix}#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
-	$(SED_INPLACE) -e "s#@exec_prefix@#${exec_prefix}#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
-	$(SED_INPLACE) -e "s#@includedir@#${includedir}#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
-	$(SED_INPLACE) -e "s#@libdir@#${libdir}#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
+	sed \
+		-e "s#@prefix@#${prefix}#" \
+		-e "s#@exec_prefix@#${exec_prefix}#" \
+		-e "s#@includedir@#${includedir}#" \
+		-e "s#@libdir@#${libdir}#" \
+		re2.pc > $(DESTDIR)$(libdir)/pkgconfig/re2.pc
 
 testinstall: static-testinstall shared-testinstall
 	@echo