From fc79cbcc80c67dac5c44697ab1b3ec7b548c715c Mon Sep 17 00:00:00 2001
From: Mitchell Kember <mk12360@gmail.com>
Date: Fri, 5 Feb 2021 02:45:25 -0500
Subject: [PATCH] Use -isysroot on Catalina too, not just Big Sur

This amends #7506 to apply to macOS versions since Catalina (10.15),
rather than since Big Sur (11.0).
---
 src/main.zig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index bfe0d6786b..14f63d9911 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1536,8 +1536,9 @@ fn buildOutputType(
         }
 
         const has_sysroot = if (comptime std.Target.current.isDarwin()) outer: {
-            const at_least_big_sur = target_info.target.os.getVersionRange().semver.min.major >= 11;
-            if (at_least_big_sur) {
+            const min = target_info.target.os.getVersionRange().semver.min;
+            const at_least_catalina = min.major >= 11 or (min.major >= 10 and min.minor >= 15);
+            if (at_least_catalina) {
                 const sdk_path = try std.zig.system.getSDKPath(arena);
                 try clang_argv.ensureCapacity(clang_argv.items.len + 2);
                 clang_argv.appendAssumeCapacity("-isysroot");