diff --git a/gnu/local.mk b/gnu/local.mk
index 4516ebf25d..f06bd7cba1 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -2384,6 +2384,9 @@ dist_patch_DATA = \
%D%/packages/patches/zig-0.12-use-system-paths.patch \
%D%/packages/patches/zig-0.13-build-respect-PKG_CONFIG-env-var.patch \
%D%/packages/patches/zig-0.13-fix-runpath.patch \
+ %D%/packages/patches/zig-0.14-fix-runpath.patch \
+ %D%/packages/patches/zig-0.14-use-baseline-cpu-by-default.patch \
+ %D%/packages/patches/zig-0.14-use-system-paths.patch \
%D%/packages/patches/zsh-egrep-failing-test.patch \
%D%/packages/patches/zuo-bin-sh.patch
diff --git a/gnu/packages/patches/zig-0.14-fix-runpath.patch b/gnu/packages/patches/zig-0.14-fix-runpath.patch
new file mode 100644
index 0000000000..324544165e
--- /dev/null
+++ b/gnu/packages/patches/zig-0.14-fix-runpath.patch
@@ -0,0 +1,118 @@
+From d5c31f6d99a3d02c8b0efba13e1a1e82e0e36f96 Mon Sep 17 00:00:00 2001
+From: Hilton Chain <hako@ultrarare.space>
+Date: Fri, 29 Nov 2024 14:13:46 +0800
+Subject: [PATCH] Fix RUNPATH issue.
+
+Add needed libraries and libc to RUNPATH when CROSS_LIBRARY_PATH or LIBRARY_PATH
+is set.
+---
+ lib/std/Build/Step/Compile.zig | 3 +++
+ src/link/Elf.zig | 14 ++++++++++++++
+ src/main.zig | 34 +++++++++++++++++++++++++++++++++-
+ 3 files changed, 50 insertions(+), 1 deletion(-)
+
+diff --git a/lib/std/Build/Step/Compile.zig b/lib/std/Build/Step/Compile.zig
+index 1dd444abf2..df7f4a56db 100644
+--- a/lib/std/Build/Step/Compile.zig
++++ b/lib/std/Build/Step/Compile.zig
+@@ -778,6 +778,9 @@ fn runPkgConfig(compile: *Compile, lib_name: []const u8) !PkgConfigResult {
+ try zig_cflags.appendSlice(&[_][]const u8{ "-D", macro });
+ } else if (mem.startsWith(u8, arg, "-D")) {
+ try zig_cflags.append(arg);
++ } else if (mem.startsWith(u8, arg, "-Wl,-rpath=")) {
++ const dir = arg["-Wl,-rpath=".len..];
++ try zig_libs.appendSlice(&[_][]const u8{ "-L", dir });
+ } else if (b.debug_pkg_config) {
+ return compile.step.fail("unknown pkg-config flag '{s}'", .{arg});
+ }
+diff --git a/src/link/Elf.zig b/src/link/Elf.zig
+index 608ff2fe3a..2b9fe803fd 100644
+--- a/src/link/Elf.zig
++++ b/src/link/Elf.zig
+@@ -1037,6 +1037,13 @@ fn dumpArgvInit(self: *Elf, arena: Allocator) !void {
+ try argv.appendSlice(gpa, &.{ "-rpath", rpath });
+ }
+
++ if (std.zig.system.NativePaths.isGuix(arena) and comp.config.link_libc and comp.config.link_mode == .dynamic) {
++ if (self.base.comp.libc_installation) |libc_installation| {
++ try argv.append(gpa, "-rpath");
++ try argv.append(gpa, libc_installation.crt_dir.?);
++ }
++ }
++
+ try argv.appendSlice(gpa, &.{
+ "-z",
+ try std.fmt.allocPrint(arena, "stack-size={d}", .{self.base.stack_size}),
+@@ -1857,6 +1864,13 @@ fn linkWithLLD(self: *Elf, arena: Allocator, tid: Zcu.PerThread.Id, prog_node: s
+ try argv.appendSlice(&.{ "-rpath", rpath });
+ }
+
++ if (std.zig.system.NativePaths.isGuix(arena) and comp.config.link_libc and link_mode == .dynamic) {
++ if (self.base.comp.libc_installation) |libc_installation| {
++ try argv.append("-rpath");
++ try argv.append(libc_installation.crt_dir.?);
++ }
++ }
++
+ for (self.symbol_wrap_set.keys()) |symbol_name| {
+ try argv.appendSlice(&.{ "-wrap", symbol_name });
+ }
+diff --git a/src/main.zig b/src/main.zig
+index 79493aa624..505bb7570a 100644
+--- a/src/main.zig
++++ b/src/main.zig
+@@ -3901,7 +3901,7 @@ fn createModule(
+ create_module.want_native_include_dirs = true;
+ }
+
+- if (create_module.each_lib_rpath orelse resolved_target.is_native_os) {
++ if (create_module.each_lib_rpath orelse false) {
+ try create_module.rpath_list.ensureUnusedCapacity(arena, create_module.lib_directories.items.len);
+ for (create_module.lib_directories.items) |lib_directory| {
+ create_module.rpath_list.appendAssumeCapacity(lib_directory.path.?);
+@@ -3976,6 +3976,28 @@ fn createModule(
+ else => {},
+ };
+
++ if (std.zig.system.NativePaths.isGuix(arena)) {
++ for (create_module.link_inputs.items) |link_input| {
++ if (link_input.path()) |lib| {
++ const lib_name = lib.sub_path;
++ if (Compilation.classifyFileExt(lib_name) == .shared_library) {
++ if (fs.path.isAbsolute(lib_name)) {
++ const lib_dir_path = fs.path.dirname(lib_name).?;
++ try create_module.rpath_list.append(arena, lib_dir_path);
++ continue;
++ }
++ for (create_module.lib_directories.items) |lib_dir| {
++ const lib_dir_path = lib_dir.path.?;
++ if (try libPathExists(arena, lib_dir_path, lib_name)) {
++ try create_module.rpath_list.append(arena, lib_dir_path);
++ break;
++ }
++ }
++ }
++ }
++ }
++ }
++
+ create_module.resolved_options = Compilation.Config.resolve(create_module.opts) catch |err| switch (err) {
+ error.WasiExecModelRequiresWasi => fatal("only WASI OS targets support execution model", .{}),
+ error.SharedMemoryIsWasmOnly => fatal("only WebAssembly CPU targets support shared memory", .{}),
+@@ -7495,3 +7517,13 @@ fn addLibDirectoryWarn2(
+ .path = path,
+ });
+ }
++
++fn libPathExists(arena: Allocator, lib_dir_path: []const u8, lib_name: []const u8) !bool {
++ const lib_path = try std.fmt.allocPrint(arena, "{s}{s}{s}", .{
++ lib_dir_path,
++ fs.path.sep_str,
++ lib_name,
++ });
++ fs.cwd().access(lib_path, .{}) catch return false;
++ return true;
++}
+--
+2.46.0
+
diff --git a/gnu/packages/patches/zig-0.14-use-baseline-cpu-by-default.patch b/gnu/packages/patches/zig-0.14-use-baseline-cpu-by-default.patch
new file mode 100644
index 0000000000..ccbf2fcb47
--- /dev/null
+++ b/gnu/packages/patches/zig-0.14-use-baseline-cpu-by-default.patch
@@ -0,0 +1,36 @@
+From 7da6d5e31e3f99fef7e669e2dbe4104ae0f12073 Mon Sep 17 00:00:00 2001
+From: Ekaitz Zarraga <ekaitz@elenq.tech>
+Date: Sat, 18 Nov 2023 15:04:16 +0100
+Subject: [PATCH] Use `baseline` cpu by default.
+
+This helps Guix tune the package later. Tunning will only add
+`-Dcpu=whatever` which should override the standard behaviour.
+
+Zig by default uses `native`, which interferes with our build process.
+In our previous zig-build-system we chose to add `-Dcpu=baseline` flag
+in each `zig build` execution, but that doesn't allow us to tune the
+package later. Tunning is only designed to add extra flags in the
+command line call, and we already had one set for the baseline case.
+With this patch we set the standard behavior to `baseline` so we don't
+need to add the `-Dcpu=baseline` flag in the zig-build-system and we can
+tune with no issues.
+---
+ lib/std/Target/Query.zig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/std/Target/Query.zig b/lib/std/Target/Query.zig
+index 144b2d60af..5a496b531d 100644
+--- a/lib/std/Target/Query.zig
++++ b/lib/std/Target/Query.zig
+@@ -6,7 +6,7 @@
+ /// `null` means native.
+ cpu_arch: ?Target.Cpu.Arch = null,
+
+-cpu_model: CpuModel = CpuModel.determined_by_arch_os,
++cpu_model: CpuModel = CpuModel.baseline,
+
+ /// Sparse set of CPU features to add to the set from `cpu_model`.
+ cpu_features_add: Target.Cpu.Feature.Set = Target.Cpu.Feature.Set.empty,
+--
+2.46.0
+
diff --git a/gnu/packages/patches/zig-0.14-use-system-paths.patch b/gnu/packages/patches/zig-0.14-use-system-paths.patch
new file mode 100644
index 0000000000..5ece0c0cdd
--- /dev/null
+++ b/gnu/packages/patches/zig-0.14-use-system-paths.patch
@@ -0,0 +1,133 @@
+From 813993ef425ba24e7a18d3cdf700c0589a333943 Mon Sep 17 00:00:00 2001
+From: Hilton Chain <hako@ultrarare.space>
+Date: Fri, 29 Nov 2024 14:13:30 +0800
+Subject: [PATCH] Use system paths.
+
+Prefer Guix search paths and support Guix cross builds.
+---
+ lib/std/zig/system.zig | 25 +++++++++++---
+ lib/std/zig/system/NativePaths.zig | 53 ++++++++++++++++++++++++++++++
+ src/main.zig | 3 +-
+ 3 files changed, 76 insertions(+), 5 deletions(-)
+
+diff --git a/lib/std/zig/system.zig b/lib/std/zig/system.zig
+index 48b195dc3e..b636c46656 100644
+--- a/lib/std/zig/system.zig
++++ b/lib/std/zig/system.zig
+@@ -1176,10 +1176,27 @@ fn defaultAbiAndDynamicLinker(cpu: Target.Cpu, os: Target.Os, query: Target.Quer
+ .os = os,
+ .abi = abi,
+ .ofmt = query.ofmt orelse Target.ObjectFormat.default(os.tag, cpu.arch),
+- .dynamic_linker = if (query.dynamic_linker.get() == null)
+- Target.DynamicLinker.standard(cpu, os, abi)
+- else
+- query.dynamic_linker,
++ .dynamic_linker = if (query.dynamic_linker.get() == null) blk: {
++ var standard_linker = Target.DynamicLinker.standard(cpu, os, abi);
++ if (standard_linker.get()) |standard_linker_path| {
++ if (builtin.os.tag != .windows and builtin.os.tag != .wasi) {
++ if (posix.getenv("CROSS_LIBRARY_PATH") orelse posix.getenv("LIBRARY_PATH")) |library_path| {
++ const linker_basename = fs.path.basename(standard_linker_path);
++ var buffer: [255]u8 = undefined;
++ var it = mem.tokenizeScalar(u8, library_path, ':');
++ while (it.next()) |dir| {
++ const linker_fullpath = std.fmt.bufPrint(&buffer, "{s}{s}{s}", .{ dir, fs.path.sep_str, linker_basename }) catch "";
++ const guix_linker_path = fs.cwd().realpath(linker_fullpath, &buffer) catch "";
++ if (guix_linker_path.len != 0) {
++ standard_linker.set(guix_linker_path);
++ break;
++ }
++ }
++ }
++ }
++ }
++ break :blk standard_linker;
++ } else query.dynamic_linker,
+ };
+ }
+
+diff --git a/lib/std/zig/system/NativePaths.zig b/lib/std/zig/system/NativePaths.zig
+index 3c96134556..90f31b17c1 100644
+--- a/lib/std/zig/system/NativePaths.zig
++++ b/lib/std/zig/system/NativePaths.zig
+@@ -15,6 +15,51 @@ warnings: std.ArrayListUnmanaged([]const u8) = .empty,
+
+ pub fn detect(arena: Allocator, native_target: std.Target) !NativePaths {
+ var self: NativePaths = .{ .arena = arena };
++ if (isGuix(arena)) {
++ inline for ([_][]const u8{ "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH" }) |env_var| {
++ if (process.getEnvVarOwned(arena, env_var)) |include_path| {
++ var it = mem.tokenizeScalar(u8, include_path, ':');
++ while (it.next()) |dir|
++ try self.addIncludeDir(dir);
++ } else |err| switch (err) {
++ error.InvalidWtf8 => unreachable,
++ error.EnvironmentVariableNotFound => {},
++ error.OutOfMemory => |e| return e,
++ }
++ }
++ if (process.getEnvVarOwned(arena, "CROSS_LIBRARY_PATH")) |library_path| {
++ var it = mem.tokenizeScalar(u8, library_path, ':');
++ while (it.next()) |dir|
++ try self.addLibDir(dir);
++ } else |err| switch (err) {
++ error.InvalidWtf8 => unreachable,
++ error.EnvironmentVariableNotFound => {},
++ error.OutOfMemory => |e| return e,
++ }
++ if (!isCrossGuix(arena)) {
++ inline for ([_][]const u8{ "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH" }) |env_var| {
++ if (process.getEnvVarOwned(arena, env_var)) |include_path| {
++ var it = mem.tokenizeScalar(u8, include_path, ':');
++ while (it.next()) |dir|
++ try self.addIncludeDir(dir);
++ } else |err| switch (err) {
++ error.InvalidWtf8 => unreachable,
++ error.EnvironmentVariableNotFound => {},
++ error.OutOfMemory => |e| return e,
++ }
++ }
++ if (process.getEnvVarOwned(arena, "LIBRARY_PATH")) |library_path| {
++ var it = mem.tokenizeScalar(u8, library_path, ':');
++ while (it.next()) |dir|
++ try self.addLibDir(dir);
++ } else |err| switch (err) {
++ error.InvalidWtf8 => unreachable,
++ error.EnvironmentVariableNotFound => {},
++ error.OutOfMemory => |e| return e,
++ }
++ }
++ return self;
++ }
+ var is_nix = false;
+ if (process.getEnvVarOwned(arena, "NIX_CFLAGS_COMPILE")) |nix_cflags_compile| {
+ is_nix = true;
+@@ -208,3 +253,11 @@ pub fn addWarningFmt(self: *NativePaths, comptime fmt: []const u8, args: anytype
+ pub fn addRPath(self: *NativePaths, s: []const u8) !void {
+ try self.rpaths.append(self.arena, s);
+ }
++
++pub fn isCrossGuix(arena: Allocator) bool {
++ return process.hasEnvVar(arena, "CROSS_LIBRARY_PATH") catch false;
++}
++
++pub fn isGuix(arena: Allocator) bool {
++ return isCrossGuix(arena) or process.hasEnvVar(arena, "LIBRARY_PATH") catch false;
++}
+diff --git a/src/main.zig b/src/main.zig
+index 0d239f1f99..79493aa624 100644
+--- a/src/main.zig
++++ b/src/main.zig
+@@ -3909,7 +3909,8 @@ fn createModule(
+ }
+
+ // Trigger native system library path detection if necessary.
+- if (create_module.sysroot == null and
++ if (std.zig.system.NativePaths.isCrossGuix(arena) or
++ create_module.sysroot == null and
+ resolved_target.is_native_os and resolved_target.is_native_abi and
+ create_module.want_native_include_dirs)
+ {
+--
+2.46.0
+
diff --git a/gnu/packages/zig.scm b/gnu/packages/zig.scm
index d5ae5ff789..409836ee87 100644
--- a/gnu/packages/zig.scm
+++ b/gnu/packages/zig.scm
@@ -1578,4 +1578,171 @@ (define-public zig-0.13
(properties `((max-silent-time . 9600)
,@(clang-compiler-cpu-architectures "18")))))
+
+;;;
+;;; Bootstrap path for Zig 0.14.
+;;;
+
+(define zig-0.13.0-286
+ (let ((commit "d72a8db2db1a5c77af2deb713248dc53f9adcb73")
+ (revision "286")
+ (base zig-0.13))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "1rnpv4lwc2jxz5yymrb4hlfy4iii48bn94rjpr3vll8yyydinpnb"))
+ ;; zig2
+ (arguments (package-arguments zig-0.10.0-851))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "zig" `(,base "zig1")))))))
+
+(define zig-0.13.0-503
+ (let ((commit "25198810c88d474c63ff537e3647f12e7df6297c")
+ (revision "503")
+ (base zig-0.13.0-286))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "1i2baqav7qxv7ll94win6xfsm45dpzrwkwpayzrdll1aq9k4ywvb"))
+ ;; zig1
+ (arguments (package-arguments zig-0.10.0-747))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "zig" `(,base "out")))))))
+
+(define zig-0.13.0-1323
+ (let ((commit "457c94d353b77b08786aa8794e1afc6a62d5c34a")
+ (revision "1323")
+ (base zig-0.13.0-503))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "1kh4iy7mk86s7fpqgrp5i2m1a3d8vhz5plmhkglzykdr3calqqhi"))
+ ;; zig2
+ (arguments (package-arguments zig-0.10.0-851))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "zig" `(,base "zig1")))))))
+
+(define zig-0.13.0-1528
+ (let ((commit "8ec68c63fa1d0f7e267ff92c054e8aa335f91da4")
+ (revision "1528")
+ (base zig-0.13.0-1323))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "1a7q20wbadjqj0xmajq6f3kk9mlkz9wqgvw4zm62r5bn1xzcs5kd"))
+ ;; zig1
+ (arguments (package-arguments zig-0.10.0-747))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "zig" `(,base "out")))))))
+
+(define zig-0.13.0-1951
+ (let ((commit "8573836892ba1b7cd34d377b46258930161256c3")
+ (revision "1951")
+ (base zig-0.13.0-1528))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "094yxy3db6sjvcni4jl1d6nf46hlarhw6hnxhcw7vwq4qaj9w9xq"))
+ ;; zig2
+ (arguments
+ (substitute-keyword-arguments (package-arguments zig-0.10.0-851)
+ ((#:phases phases '%standard-phases)
+ #~(modify-phases #$phases
+ ;; See also upstream commit
+ ;; f1f804e532e603a3f58d559d32a1c8120691d891.
+ (add-after 'unpack 'fix-compilation
+ (lambda _
+ (substitute* "src/zig_llvm.cpp"
+ ((".*LastEnvironmentType.*") ""))))))))
+ (inputs
+ (modify-inputs (package-inputs base)
+ (replace "clang" clang-19)
+ (replace "lld" lld-19)))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "llvm" llvm-19)
+ (replace "zig" `(,base "zig1"))))
+ (properties `((max-silent-time . 9600)
+ ,@(clang-compiler-cpu-architectures "19"))))))
+
+(define zig-0.13.0-1952
+ (let ((commit "51706af908e0c6acb822ef36760b7fe31faf62a6")
+ (revision "1952")
+ (base zig-0.13.0-1951))
+ (package
+ (inherit base)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source (zig-source
+ version commit
+ "1ypwd8is0zmnq042qzya34jks1sfkk1grdi1asymbqnmp0c3p4m7"))
+ ;; zig1
+ (arguments (package-arguments zig-0.10.0-747))
+ (native-inputs
+ (modify-inputs (package-native-inputs base)
+ (replace "zig" `(,base "out")))))))
+
+(define zig-0.14-glibc-abi-tool
+ (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url "https://github.com/ziglang/glibc-abi-tool")
+ (commit "23fa2936e21ef8573d0a7c244523284fc3a17567")))
+ (file-name "zig-0.14-glibc-abi-tool-checkout")
+ (sha256
+ (base32 "18s08rqv457fs9jaiqf3smlkqbmpsan2rl0w6p3d59j0v1jf9cvq"))
+ (modules '((guix build utils)))
+ (snippet
+ #~(substitute* "consolidate.zig"
+ (("(const new_inc = ).*" _ prefix)
+ (string-append prefix "Inclusion {"))))))
+
+(define zig-0.14
+ (let ((commit "aa7d138462602e086aacf738e4b92bfa3372bebe")
+ (revision "2367"))
+ (package
+ (inherit zig-0.13)
+ (name "zig")
+ (version (git-version "0.13.0" revision commit))
+ (source
+ (origin
+ (inherit (zig-source
+ version commit
+ "17z55qk1hp6ghap9mkblsbm0ivda5niy3cwxcyrbkwr3xhmc7qvz"))
+ (patches
+ (search-patches
+ "zig-0.14-use-baseline-cpu-by-default.patch"
+ "zig-0.14-use-system-paths.patch"
+ "zig-0.14-fix-runpath.patch"))))
+ (inputs
+ (modify-inputs (package-inputs zig-0.13)
+ (replace "clang" clang-19)
+ (replace "lld" lld-19)))
+ (native-inputs
+ (modify-inputs (package-native-inputs zig-0.13)
+ (replace "glibc-abi-tool" zig-0.14-glibc-abi-tool)
+ (replace "llvm" llvm-19)
+ (replace "zig" `(,zig-0.13.0-1952 "zig1"))))
+ (properties `((max-silent-time . 9600)
+ ,@(clang-compiler-cpu-architectures "19"))))))
+
(define-public zig zig-0.13)