[ctbignum] fix build (#39851)

ports/ctbignum/no-boost.patch

@@ -0,0 +1,23 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a5070b1..b60462b 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -19,18 +19,6 @@ cmake_minimum_required(VERSION 3.0.0)
+ ##
+ project(ctbignum VERSION 0.1 LANGUAGES CXX)
+ 
+-##
+-## INCLUDE
+-##
+-##
+-include(ExternalProject)
+-
+-## External dependencies
+-find_package(Boost 1.61 REQUIRED)
+-if(Boost_FOUND)
+-  include_directories(${Boost_INCLUDE_DIRS})
+-endif()
+-
+ ##
+ ## OPTIONS
+ ##

ports/ctbignum/portfile.cmake

@@ -4,6 +4,8 @@ vcpkg_from_github(
     REF cf3233d8b7dcff59f29a7389204959ee2228a4af
     SHA512 8cd5e187836f48165a088a171c87ce438393e66f7362af1b67a253ae6ef0b17c41468e21e0dfe337094796f2b2a2fa5062cc9a9231afc377f187baf1ead1257e
     HEAD_REF master
+    PATCHES
+        no-boost.patch
 )
 
 vcpkg_cmake_configure(

ports/ctbignum/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "ctbignum",
   "version-date": "2019-08-02",
-  "port-version": 4,
+  "port-version": 5,
   "description": "This is a header-only template library for fixed-width \"small big-integer\" computations, for use during run-time as well as compile-time.",
   "homepage": "https://github.com/niekbouman/ctbignum",
   "dependencies": [

versions/baseline.json

@@ -2054,7 +2054,7 @@
     },
     "ctbignum": {
       "baseline": "2019-08-02",
-      "port-version": 4
+      "port-version": 5
     },
     "ctemplate": {
       "baseline": "2020-09-14",

versions/c-/ctbignum.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "6906803a0f8c9dc9c86a05bf2cc726a5064208e5",
+      "version-date": "2019-08-02",
+      "port-version": 5
+    },
     {
       "git-tree": "e343f08ae948a498ea8aba148c3dacda6da0fb3f",
       "version-date": "2019-08-02",