From: Jan Engelhardt <jengelh@inai.de>
Date: 2018-07-26 14:53:39.797440030 +0200

Eh, do not waste time building static libs which we are not going to
keep.
---
 src/DoConfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: ntl-11.2.1/src/DoConfig
===================================================================
--- ntl-11.2.1.orig/src/DoConfig
+++ ntl-11.2.1/src/DoConfig
@@ -200,7 +200,7 @@ if ($MakeFlag{'SHARED'} eq 'off') {
 
       system("rm -rf libtool-build") and die "Error: libtool build failed\n";
       system("cp -R libtool-origin libtool-build") and die "Error: libtool build failed\n";
-      system("cd libtool-build && ./configure") and die "Error: libtool build failed\n";
+      system("cd libtool-build && ./configure --disable-static") and die "Error: libtool build failed\n";
 
       if (-x "libtool-build/libtool") {
 	 print "\n*** libtool OK\n\n";