diff -Naur ncurses-6.2.orig/c++/Makefile.in ncurses-6.2/c++/Makefile.in
--- ncurses-6.2.orig/c++/Makefile.in	2020-02-02 18:34:34.000000000 -0500
+++ ncurses-6.2/c++/Makefile.in	2020-07-11 09:50:36.623222523 -0400
@@ -63,7 +63,6 @@
 LIBTOOL_CLEAN	= @LIB_CLEAN@
 LIBTOOL_COMPILE	= @LIB_COMPILE@
 LIBTOOL_LINK	= @LIB_LINK@
-LIBTOOL_INSTALL	= @LIB_INSTALL@
 LIBTOOL_UNINSTALL = @LIB_UNINSTALL@
 LIBTOOL_VERSION = @LIBTOOL_VERSION@
 LT_UNDEF	= @LT_UNDEF@