$OpenBSD: patch-gcc_Makefile_in,v 1.1 2012/09/23 10:32:16 espie Exp $
--- gcc/Makefile.in.orig	Tue Apr  1 23:26:19 2008
+++ gcc/Makefile.in	Sat Sep 22 09:42:04 2012
@@ -3865,8 +3865,8 @@ install-headers: $(INSTALL_HEADERS_DIR)
 
 # Create or recreate the gcc private include file directory.
 install-include-dir: installdirs
-	-rm -rf $(DESTDIR)$(libsubdir)/include
-	mkdir $(DESTDIR)$(libsubdir)/include
+	#-rm -rf $(DESTDIR)$(libsubdir)/include
+	mkdir -p $(DESTDIR)$(libsubdir)/include
 	-chmod a+rx $(DESTDIR)$(libsubdir)/include
 
 # Create or recreate the install-tools include file directory.
