feat(build): add initial build.zig

Targets Zig 0.16.

Upstreamed from Neovim; currently only supports compiling and installing
the library.

Author: clason

.github/workflows/ci.yml

@@ -1,7 +1,11 @@
 name: test
 on:
   push:
+    branches:
+      - 'master'
   pull_request:
+    branches:
+      - 'master'
   workflow_dispatch:
 
 permissions:
@@ -50,3 +54,21 @@ jobs:
 
       - name: Run tests
         run: ctest --test-dir build --output-on-failure
+
+  linux-zig:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v7.0.0
+        with:
+          persist-credentials: false
+
+      - uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
+        with:
+          version: 0.16.0
+
+      - name: Install dependencies
+        run: sudo apt --update install build-essential libncurses-dev cmake
+
+      - name: Build
+        run: zig build

build.zig

@@ -0,0 +1,28 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) !void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    var unibilium = b.createModule(.{
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true,
+    });
+
+    const lib: *std.Build.Step.Compile = b.addLibrary(.{
+        .name = "unibilium",
+        .linkage = .static,
+        .root_module = unibilium,
+    });
+
+    lib.installHeader(b.path("unibilium.h"), "unibilium.h");
+
+    unibilium.addCSourceFiles(.{ .root = b.path("."), .files = &.{
+        "unibilium.c",
+        "uninames.c",
+        "uniutil.c",
+    }, .flags = &.{ "-DTERMINFO_DIRS=\"/etc/terminfo:/usr/share/terminfo\"", "-DTERMINFO=\"/usr/share/terminfo\"" } });
+
+    b.installArtifact(lib);
+}

build.zig.zon

@@ -0,0 +1,15 @@
+.{
+    .name = .unibilium,
+    .fingerprint = 0x1d1baa4896ad720,
+    .version = "2.1.3",
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "unibilium.h",
+        "unibilium.c",
+        "uninames.c",
+        "uniutil.c",
+        "README.md",
+        "LICENSE",
+    },
+}