vim: fix compilation with macOS

Upstream backport.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/vim/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=vim
 PKG_VERSION:=8.2
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 VIMVER:=82
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2

utils/vim/patches/020-macos.patch

@@ -0,0 +1,39 @@
+From 5289783e0b07cfc3f92ee933261ca4c4acdca007 Mon Sep 17 00:00:00 2001
+From: Bram Moolenaar <Bram@vim.org>
+Date: Thu, 2 Jul 2020 22:50:37 +0200
+Subject: [PATCH] patch 8.2.1119: configure fails with Xcode 12 beta
+
+Problem:    Configure fails with Xcode 12 beta.
+Solution:   use "return" instead of "exit()". (Nico Weber, closes #6381)
+---
+ src/auto/configure | 4 ++--
+ src/configure.ac   | 4 ++--
+ src/version.c      | 2 ++
+ 3 files changed, 6 insertions(+), 4 deletions(-)
+
+--- a/src/auto/configure
++++ b/src/auto/configure
+@@ -14005,8 +14005,8 @@ else
+ main() {
+   uint32_t nr1 = (uint32_t)-1;
+   uint32_t nr2 = (uint32_t)0xffffffffUL;
+-  if (sizeof(uint32_t) != 4 || nr1 != 0xffffffffUL || nr2 + 1 != 0) exit(1);
+-  exit(0);
++  if (sizeof(uint32_t) != 4 || nr1 != 0xffffffffUL || nr2 + 1 != 0) return 1;
++  return 0;
+ }
+ _ACEOF
+ if ac_fn_c_try_run "$LINENO"; then :
+--- a/src/configure.ac
++++ b/src/configure.ac
+@@ -4129,8 +4129,8 @@ AC_TRY_RUN([
+ main() {
+   uint32_t nr1 = (uint32_t)-1;
+   uint32_t nr2 = (uint32_t)0xffffffffUL;
+-  if (sizeof(uint32_t) != 4 || nr1 != 0xffffffffUL || nr2 + 1 != 0) exit(1);
+-  exit(0);
++  if (sizeof(uint32_t) != 4 || nr1 != 0xffffffffUL || nr2 + 1 != 0) return 1;
++  return 0;
+ }],
+ AC_MSG_RESULT(ok),
+ AC_MSG_ERROR([WRONG!  uint32_t not defined correctly.]),