From 5d36bb83c9eb4b564cd03456697c692ce3bf19a7 Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <giann008@gmail.com>
Date: Wed, 31 Jul 2024 08:25:42 +0200
Subject: [PATCH] feat: MIR is built by zig

---
 README.md               |  7 ++++---
 build.zig               | 37 ++++++++++++++++++-------------------
 examples/fibonacci.buzz |  2 +-
 3 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/README.md b/README.md
index 85314ed5..5fe43ba5 100644
--- a/README.md
+++ b/README.md
@@ -42,10 +42,11 @@ _Latest zig version supported: 0.14.0-dev.121+ab4c461b7_
 ### Build
 1. Clone the project: `git clone https://github.com/buzz-language/buzz <buzz_dir>`
 2. Checkout submodules: `git submodule update --init`
-3. Build MIR:
+3. Run configure for pcre2:
 ```bash
-cd vendors/mir
-make
+cd vendors/pcre2
+./configure
+cd ../..
 ```
 4. Have fun: `zig build run -- <myscript.buzz>`
 
diff --git a/build.zig b/build.zig
index be11bc55..0c71cc1e 100644
--- a/build.zig
+++ b/build.zig
@@ -116,20 +116,14 @@ pub fn build(b: *Build) !void {
         .sha = std.posix.getenv("GIT_SHA") orelse
             std.posix.getenv("GITHUB_SHA") orelse std.mem.trim(
             u8,
-            (std.process.Child.run(.{
-                .allocator = b.allocator,
-                .argv = &.{
+            b.run(
+                &.{
                     "git",
                     "rev-parse",
                     "--short",
                     "HEAD",
                 },
-                .cwd = b.pathFromRoot("."),
-                .expand_arg0 = .expand,
-            }) catch {
-                std.debug.print("Warning: failed to get git HEAD", .{});
-                unreachable;
-            }).stdout,
+            ),
             "\n \t",
         ),
         .cycle_limit = b.option(
@@ -735,16 +729,20 @@ pub fn buildMir(b: *Build, target: Build.ResolvedTarget, optimize: std.builtin.O
 
     if (lib.root_module.resolved_target.?.result.os.tag == .windows) {
         lib.addSystemIncludePath(
-            b.path((std.process.Child.run(.{
-                .allocator = b.allocator,
-                .argv = &.{
-                    "xcrun",
-                    "--show-sdk-path",
-                },
-            }) catch {
-                std.debug.print("Failed to get MacOSX sdk path", .{});
-                unreachable;
-            }).stdout),
+            b.path(
+                std.fmt.allocPrint(
+                    b.allocator,
+                    "{s}/usr/include",
+                    .{
+                        b.run(
+                            &.{
+                                "xcrun",
+                                "--show-sdk-path",
+                            },
+                        ),
+                    },
+                ) catch @panic("Out of memory"),
+            ),
         );
         // Github macos-12 runner (https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md).
         lib.addSystemIncludePath(b.path("/Applications/Xcode_14.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include"));
@@ -766,6 +764,7 @@ pub fn buildMir(b: *Build, target: Build.ResolvedTarget, optimize: std.builtin.O
                 "-O3",
                 "-DNDEBUG=1",
                 "-DMIR_PARALLEL_GEN=1",
+                "-fno-sanitize=undefined",
                 // "-DADDITIONAL_INCLUDE_PATH=\"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include\"",
             },
         },
diff --git a/examples/fibonacci.buzz b/examples/fibonacci.buzz
index 2b3abc89..556a1cd5 100644
--- a/examples/fibonacci.buzz
+++ b/examples/fibonacci.buzz
@@ -14,7 +14,7 @@ fun fibonacci(int n) > void *> int? {
 }
 
 fun main([str] args) > void {
-    const N = std.parseInt(args[?0] ?? '10') ?? 10;
+    const N = std.parseInt(args[?0] ?? "10") ?? 10;
 
     foreach (var n in &fibonacci(N)) {
         std.print("{n}");