[newlib-cygwin] Cygwin: add missing files to 'clean' build rule

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=36b8811c3ec134a8ec06f55813f674b9a978d9b2

commit 36b8811c3ec134a8ec06f55813f674b9a978d9b2
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue May 26 10:19:35 2020 +0200

    Cygwin: add missing files to 'clean' build rule
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/Makefile.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index 3a175c61c..0ec90de58 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -670,7 +670,9 @@ uninstall-man:
 	done
 
 clean distclean realclean:
-	-rm -f *.o *.dll *.dbg *.a *.exp junk *.base version.cc *.exe *.d *stamp* *_magic.h sigfe.s cygwin.def globals.h localtime.patched.c
+	-rm -f *.o *.dll *.dbg *.a *.exp junk *.base version.cc *.exe *.d \
+	       *stamp* *_magic.h sigfe.s cygwin.def cygwin.map cygwin.sc \
+	       globals.h localtime.patched.c
 	-@$(MAKE) -C ${cygserver_blddir} libclean
 
 maintainer-clean: clean