First version, lets go

build.zig

@@ -0,0 +1,29 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const upstream = b.dependency("spdlog", .{});
+    const lib = b.addStaticLibrary(.{
+        .name = "spdlog",
+        .target = b.standardTargetOptions(.{}),
+        .optimize = b.standardOptimizeOption(.{}),
+    });
+    lib.linkLibCpp();
+    lib.addIncludePath(upstream.path("include"));
+    lib.addCSourceFiles(.{
+        .root = upstream.path("src"),
+        .files = &.{
+            "async.cpp",
+            "bundled_fmtlib_format.cpp",
+            "cfg.cpp",
+            "color_sinks.cpp",
+            "file_sinks.cpp",
+            "spdlog.cpp",
+            "stdout_sinks.cpp",
+        },
+        .flags = &.{
+            "-DSPDLOG_COMPILED_LIB",
+        },
+    });
+    lib.installHeadersDirectory(upstream.path("include/spdlog"), "spdlog", .{});
+    b.installArtifact(lib);
+}