gentoo-overlay/dev-util/mingw-runtime/files/mingw-runtime-3.12-DESTDIR.patch

--- Makefile.in
+++ Makefile.in
@@ -58,5 +58,11 @@
 endif
 
+inst_bindir:=$(DESTDIR)$(inst_bindir)
+inst_includedir:=$(DESTDIR)$(inst_includedir)
+inst_libdir:=$(DESTDIR)$(inst_libdir)
+inst_docdir:=$(DESTDIR)$(inst_docdir)
+mandir:=$(DESTDIR)$(mandir)
+
 # The Mingw headers are installed under a subdirectory of
 # $(tooldir)/include when configuring in Cygwin.
 HEADER_SUBDIR = @HEADER_SUBDIR@
@@ -199,6 +199,6 @@
 all_dlls_host: $(DLLS)
 
-install_dlls_host:
+install_dlls_host: install-dirs
 	for i in $(DLLS); do \
 		$(INSTALL_PROGRAM) $$i $(inst_bindir)/$$i ; \
 	done