pkg: remove all old build.zig files

pkg/zlib/build.old.zig

@@ -1,74 +0,0 @@
-const std = @import("std");
-
-/// Directories with our includes.
-const root = thisDir() ++ "../../../vendor/zlib/";
-const include_path = root;
-
-pub const include_paths = .{include_path};
-
-pub const pkg = std.build.Pkg{
-    .name = "zlib",
-    .source = .{ .path = thisDir() ++ "/main.zig" },
-};
-
-fn thisDir() []const u8 {
-    return std.fs.path.dirname(@src().file) orelse ".";
-}
-
-pub fn link(b: *std.build.Builder, step: *std.build.LibExeObjStep) !*std.build.LibExeObjStep {
-    const lib = try buildLib(b, step);
-    step.linkLibrary(lib);
-    step.addIncludePath(.{ .path = include_path });
-    return lib;
-}
-
-pub fn buildLib(
-    b: *std.build.Builder,
-    step: *std.build.LibExeObjStep,
-) !*std.build.LibExeObjStep {
-    const lib = b.addStaticLibrary(.{
-        .name = "z",
-        .target = step.target,
-        .optimize = step.optimize,
-    });
-
-    // Include
-    lib.addIncludePath(.{ .path = include_path });
-
-    // Link
-    lib.linkLibC();
-
-    // Compile
-    var flags = std.ArrayList([]const u8).init(b.allocator);
-    defer flags.deinit();
-
-    try flags.appendSlice(&.{
-        "-DHAVE_SYS_TYPES_H",
-        "-DHAVE_STDINT_H",
-        "-DHAVE_STDDEF_H",
-        "-DZ_HAVE_UNISTD_H",
-    });
-
-    // C files
-    lib.addCSourceFiles(srcs, flags.items);
-
-    return lib;
-}
-
-const srcs = &.{
-    root ++ "adler32.c",
-    root ++ "compress.c",
-    root ++ "crc32.c",
-    root ++ "deflate.c",
-    root ++ "gzclose.c",
-    root ++ "gzlib.c",
-    root ++ "gzread.c",
-    root ++ "gzwrite.c",
-    root ++ "inflate.c",
-    root ++ "infback.c",
-    root ++ "inftrees.c",
-    root ++ "inffast.c",
-    root ++ "trees.c",
-    root ++ "uncompr.c",
-    root ++ "zutil.c",
-};