From 50a6dc8496c7c4ccb1ac30ad53da524dd3161c15 Mon Sep 17 00:00:00 2001
From: Cody Tapscott <topolarity@tapscott.me>
Date: Tue, 11 Oct 2022 08:16:27 -0700
Subject: [PATCH] build.zig: Parse CMAKE_PREFIX_PATH with multiple entries

CMAKE_PREFIX_PATH is a semicolon separated list.
---
 build.zig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/build.zig b/build.zig
index 13e9fa1134..7b5cc30605 100644
--- a/build.zig
+++ b/build.zig
@@ -339,7 +339,10 @@ pub fn build(b: *Builder) !void {
             // That means we also have to rely on stage1 compiled c++ files. We parse config.h to find
             // the information passed on to us from cmake.
             if (cfg.cmake_prefix_path.len > 0) {
-                b.addSearchPrefix(cfg.cmake_prefix_path);
+                var it = mem.tokenize(u8, cfg.cmake_prefix_path, ";");
+                while (it.next()) |path| {
+                    b.addSearchPrefix(path);
+                }
             }
 
             try addCmakeCfgOptionsToExe(b, cfg, exe, use_zig_libcxx);