From 0f97b892681839cebf0863a3a15b3be0c68419e8 Mon Sep 17 00:00:00 2001
From: sharpobject <sharpobject@gmail.com>
Date: Sun, 3 Jan 2021 20:11:59 +0900
Subject: Handle MACOSX versions >10 or with 2 dots

Fixes #1238.
---
 src/luarocks/build.lua    | 12 +++++-------
 src/luarocks/core/cfg.lua | 18 +++++++++++-------
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/src/luarocks/build.lua b/src/luarocks/build.lua
index c410fbde..0e8e7f58 100644
--- a/src/luarocks/build.lua
+++ b/src/luarocks/build.lua
@@ -9,6 +9,7 @@ local fs = require("luarocks.fs")
 local dir = require("luarocks.dir")
 local deps = require("luarocks.deps")
 local cfg = require("luarocks.core.cfg")
+local vers = require("luarocks.core.vers")
 local repos = require("luarocks.repos")
 local writer = require("luarocks.manif.writer")
 local deplocks = require("luarocks.deplocks")
@@ -82,9 +83,6 @@ end
 
 local function check_macosx_deployment_target(rockspec)
    local target = rockspec.build.macosx_deployment_target
-   local function minor(version) 
-      return tonumber(version and version:match("^[^.]+%.([^.]+)"))
-   end
    local function patch_variable(var)
       if rockspec.variables[var]:match("MACOSX_DEPLOYMENT_TARGET") then
          rockspec.variables[var] = (rockspec.variables[var]):gsub("MACOSX_DEPLOYMENT_TARGET=[^ ]*", "MACOSX_DEPLOYMENT_TARGET="..target)
@@ -94,10 +92,10 @@ local function check_macosx_deployment_target(rockspec)
    end
    if cfg.is_platform("macosx") and rockspec:format_is_at_least("3.0") and target then
       local version = util.popen_read("sw_vers -productVersion")
-      local versionminor = minor(version)
-      local targetminor = minor(target)
-      if targetminor > versionminor then
-         return nil, ("This rock requires Mac OSX 10.%d, and you are running 10.%d."):format(targetminor, versionminor)
+      if version:match("^%d+%.%d+%.%d+$") or version:match("^%d+%.%d+$") then
+         if vers.compare_versions(target, version) then
+            return nil, ("This rock requires Mac OSX %s, and you are running %s."):format(targetversion, version)
+         end
       end
       patch_variable("CC")
       patch_variable("LD")
diff --git a/src/luarocks/core/cfg.lua b/src/luarocks/core/cfg.lua
index fada3048..4ac5ee28 100644
--- a/src/luarocks/core/cfg.lua
+++ b/src/luarocks/core/cfg.lua
@@ -16,6 +16,7 @@ local next, table, pairs, require, os, pcall, ipairs, package, tonumber, type, a
 local util = require("luarocks.core.util")
 local persist = require("luarocks.core.persist")
 local sysdetect = require("luarocks.core.sysdetect")
+local vers = require("luarocks.core.vers")
 
 --------------------------------------------------------------------------------
 
@@ -457,16 +458,19 @@ local function make_defaults(lua_version, target_cpu, platforms, home)
       defaults.arch = "macosx-"..target_cpu
       defaults.variables.LIBFLAG = "-bundle -undefined dynamic_lookup -all_load"
       local version = util.popen_read("sw_vers -productVersion")
-      version = tonumber(version and version:match("^[^.]+%.([^.]+)")) or 3
-      if version >= 10 then
-         version = 8
-      elseif version >= 5 then
-         version = 5
+      if not (version:match("^%d+%.%d+%.%d+$") or version:match("^%d+%.%d+$")) then
+         version = "10.3"
+      end
+      version = vers.parse_version(version)
+      if version >= vers.parse_version("10.10") then
+         version = vers.parse_version("10.8")
+      elseif version >= vers.parse_version("10.5") then
+         version = vers.parse_version("10.5")
       else
          defaults.gcc_rpath = false
       end
-      defaults.variables.CC = "env MACOSX_DEPLOYMENT_TARGET=10."..version.." gcc"
-      defaults.variables.LD = "env MACOSX_DEPLOYMENT_TARGET=10."..version.." gcc"
+      defaults.variables.CC = "env MACOSX_DEPLOYMENT_TARGET="..tostring(version).." gcc"
+      defaults.variables.LD = "env MACOSX_DEPLOYMENT_TARGET="..tostring(version).." gcc"
       defaults.web_browser = "open"
    end
 
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