Merge pull request #283 from jinzhongjia/build.zig

add `build.zig` to support zig build system

Author: hassandraga

build.zig

@@ -0,0 +1,94 @@
+const std = @import("std");
+const builtin = @import("builtin");
+
+const Build = std.Build;
+const OptimizeMode = std.builtin.OptimizeMode;
+const CrossTarget = std.zig.CrossTarget;
+const Compile = Build.Step.Compile;
+const Module = Build.Module;
+
+const min_zig_string = "0.11.0";
+
+const default_isStatic = true;
+const default_enableTLS = false;
+
+const current_zig = builtin.zig_version;
+
+comptime {
+    const min_zig = std.SemanticVersion.parse(min_zig_string) catch unreachable;
+    if (current_zig.order(min_zig) == .lt) {
+        @compileError(std.fmt.comptimePrint("Your Zig version v{} does not meet the minimum build requirement of v{}", .{ current_zig, min_zig }));
+    }
+}
+
+pub fn build(b: *std.Build) void {
+    const isStatic = b.option(bool, "is_static", "whether lib is static") orelse default_isStatic;
+    const enableTLS = b.option(bool, "enable_tls", "whether lib enable tls") orelse default_enableTLS;
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    if (enableTLS) {
+        std.log.info("enable TLS support", .{});
+        if (!target.isNative()) {
+            std.log.info("when enable tls, not support cross compile", .{});
+            std.os.exit(1);
+        }
+    }
+
+    const webui = build_webui(b, optimize, target, isStatic, enableTLS);
+    webui.linkLibrary(build_civetweb(b, optimize, target, isStatic, enableTLS));
+
+    webui.installHeader("include/webui.h", "webui.h");
+
+    b.installArtifact(webui);
+}
+
+fn build_webui(b: *Build, optimize: OptimizeMode, target: CrossTarget, is_static: bool, enable_tls: bool) *Compile {
+    const name = "webui";
+    const webui = if (is_static) b.addStaticLibrary(.{ .name = name, .target = target, .optimize = optimize }) else b.addSharedLibrary(.{ .name = name, .target = target, .optimize = optimize });
+
+    webui.addCSourceFile(.{
+        .file = .{ .path = "src/webui.c" },
+        .flags = if (enable_tls)
+            &[_][]const u8{ "-DNO_SSL", "-DWEBUI_TLS", "-DNO_SSL_DL", "-DOPENSSL_API_1_1" }
+        else
+            &[_][]const u8{"-DNO_SSL"},
+    });
+
+    webui.linkLibC();
+
+    webui.addIncludePath(.{ .path = "include" });
+
+    return webui;
+}
+
+fn build_civetweb(b: *Build, optimize: OptimizeMode, target: CrossTarget, is_static: bool, enable_tls: bool) *Compile {
+    const name = "civetweb";
+    const civetweb = if (is_static) b.addStaticLibrary(.{ .name = name, .target = target, .optimize = optimize }) else b.addSharedLibrary(.{ .name = name, .target = target, .optimize = optimize });
+
+    civetweb.addIncludePath(.{ .path = "include" });
+
+    const extra_flags = if (target.os_tag == .windows) "-DMUST_IMPLEMENT_CLOCK_GETTIME" else "";
+
+    const cflags = if (enable_tls) [_][]const u8{ "-DNDEBUG", "-DNO_CACHING", "-DNO_CGI", "-DUSE_WEBSOCKET", "-DWEBUI_TLS", "-DNO_SSL_DL", "-DOPENSSL_API_1_1", extra_flags } else [_][]const u8{ "-DNDEBUG", "-DNO_CACHING", "-DNO_CGI", "-DUSE_WEBSOCKET", "-DNO_SSL", extra_flags, "", "" };
+
+    civetweb.addCSourceFile(.{
+        .file = .{ .path = "src/civetweb/civetweb.c" },
+        .flags = &cflags,
+    });
+
+    civetweb.linkLibC();
+
+    if (target.os_tag == .windows) {
+        civetweb.linkSystemLibrary("ws2_32");
+        if (enable_tls) {
+            civetweb.linkSystemLibrary("bcrypt");
+        }
+    }
+    if (enable_tls) {
+        civetweb.linkSystemLibrary("ssl");
+        civetweb.linkSystemLibrary("crypto");
+    }
+
+    return civetweb;
+}

build.zig.zon

@@ -0,0 +1,8 @@
+.{
+    .name = "webui",
+    .version = "2.4.2",
+    .dependencies = .{},
+    .paths = .{
+        "",
+    },
+}