[newlib-cygwin] Cygwin: create install dir for libs

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5d962bc718381dafd67d02714062a33060a0d449

commit 5d962bc718381dafd67d02714062a33060a0d449
Author: David McFarland via Cygwin-patches <cygwin-patches@cygwin.com>
Date:   Thu Aug 27 09:02:46 2020 -0300

    Cygwin: create install dir for libs
    
    This fixes a race in parallel installs.

Diff:
---
 winsup/cygwin/Makefile.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index 4017481e5..f775f0691 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -608,7 +608,7 @@ install: install-libs install-headers install-man install-ldif install_target \
 uninstall: uninstall-libs uninstall-headers uninstall-man
 
 install-libs: $(TARGET_LIBS)
-	@$(MKDIRP) $(DESTDIR)$(bindir)
+	@$(MKDIRP) $(DESTDIR)$(bindir) $(DESTDIR)$(tooldir)/lib
 	$(INSTALL_PROGRAM) $(TEST_DLL_NAME) $(DESTDIR)$(bindir)/$(DLL_NAME); \
 	for i in $^; do \
 	    $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/lib/`basename $$i` ; \