projects/guix·blob python-team · refs

133 lines · 5.9 KiB

1From ef7d97a722260e0a4fbd110625355b556c7ab8e3 Mon Sep 17 00:00:00 2001
2From: Hilton Chain <[email protected]>
3Date: Fri, 29 Nov 2024 14:13:30 +0800
4Subject: [PATCH] Use system paths.
5
6Prefer Guix search paths and support Guix cross builds.
7---
8 lib/std/zig/system.zig | 25 +++++++++++---
9 lib/std/zig/system/NativePaths.zig | 53 ++++++++++++++++++++++++++++++
10 src/main.zig | 3 +-
11 3 files changed, 76 insertions(+), 5 deletions(-)
12
13diff --git a/lib/std/zig/system.zig b/lib/std/zig/system.zig
14index 83c798c342..138d43f2e1 100644
15--- a/lib/std/zig/system.zig
16+++ b/lib/std/zig/system.zig
17@@ -1123,10 +1123,27 @@ fn defaultAbiAndDynamicLinker(cpu: Target.Cpu, os: Target.Os, query: Target.Quer
18 .os = os,
19 .abi = abi,
20 .ofmt = query.ofmt orelse Target.ObjectFormat.default(os.tag, cpu.arch),
21- .dynamic_linker = if (query.dynamic_linker.get() == null)
22- Target.DynamicLinker.standard(cpu, os.tag, abi)
23- else
24- query.dynamic_linker,
25+ .dynamic_linker = if (query.dynamic_linker.get() == null) blk: {
26+ var standard_linker = Target.DynamicLinker.standard(cpu, os.tag, abi);
27+ if (standard_linker.get()) |standard_linker_path| {
28+ if (builtin.os.tag != .windows and builtin.os.tag != .wasi) {
29+ if (posix.getenv("CROSS_LIBRARY_PATH") orelse posix.getenv("LIBRARY_PATH")) |library_path| {
30+ const linker_basename = fs.path.basename(standard_linker_path);
31+ var buffer: [255]u8 = undefined;
32+ var it = mem.tokenizeScalar(u8, library_path, ':');
33+ while (it.next()) |dir| {
34+ const linker_fullpath = std.fmt.bufPrint(&buffer, "{s}{s}{s}", .{ dir, fs.path.sep_str, linker_basename }) catch "";
35+ const guix_linker_path = fs.cwd().realpath(linker_fullpath, &buffer) catch "";
36+ if (guix_linker_path.len != 0) {
37+ standard_linker.set(guix_linker_path);
38+ break;
39+ }
40+ }
41+ }
42+ }
43+ }
44+ break :blk standard_linker;
45+ } else query.dynamic_linker,
46 };
47 }
48
49diff --git a/lib/std/zig/system/NativePaths.zig b/lib/std/zig/system/NativePaths.zig
50index 2a50e27b0c..f4cc0e8b3a 100644
51--- a/lib/std/zig/system/NativePaths.zig
52+++ b/lib/std/zig/system/NativePaths.zig
53@@ -15,6 +15,51 @@ warnings: std.ArrayListUnmanaged([]const u8) = .{},
54
55 pub fn detect(arena: Allocator, native_target: std.Target) !NativePaths {
56 var self: NativePaths = .{ .arena = arena };
57+ if (isGuix(arena)) {
58+ inline for ([_][]const u8{ "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH" }) |env_var| {
59+ if (process.getEnvVarOwned(arena, env_var)) |include_path| {
60+ var it = mem.tokenizeScalar(u8, include_path, ':');
61+ while (it.next()) |dir|
62+ try self.addIncludeDir(dir);
63+ } else |err| switch (err) {
64+ error.InvalidWtf8 => unreachable,
65+ error.EnvironmentVariableNotFound => {},
66+ error.OutOfMemory => |e| return e,
67+ }
68+ }
69+ if (process.getEnvVarOwned(arena, "CROSS_LIBRARY_PATH")) |library_path| {
70+ var it = mem.tokenizeScalar(u8, library_path, ':');
71+ while (it.next()) |dir|
72+ try self.addLibDir(dir);
73+ } else |err| switch (err) {
74+ error.InvalidWtf8 => unreachable,
75+ error.EnvironmentVariableNotFound => {},
76+ error.OutOfMemory => |e| return e,
77+ }
78+ if (!isCrossGuix(arena)) {
79+ inline for ([_][]const u8{ "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH" }) |env_var| {
80+ if (process.getEnvVarOwned(arena, env_var)) |include_path| {
81+ var it = mem.tokenizeScalar(u8, include_path, ':');
82+ while (it.next()) |dir|
83+ try self.addIncludeDir(dir);
84+ } else |err| switch (err) {
85+ error.InvalidWtf8 => unreachable,
86+ error.EnvironmentVariableNotFound => {},
87+ error.OutOfMemory => |e| return e,
88+ }
89+ }
90+ if (process.getEnvVarOwned(arena, "LIBRARY_PATH")) |library_path| {
91+ var it = mem.tokenizeScalar(u8, library_path, ':');
92+ while (it.next()) |dir|
93+ try self.addLibDir(dir);
94+ } else |err| switch (err) {
95+ error.InvalidWtf8 => unreachable,
96+ error.EnvironmentVariableNotFound => {},
97+ error.OutOfMemory => |e| return e,
98+ }
99+ }
100+ return self;
101+ }
102 var is_nix = false;
103 if (process.getEnvVarOwned(arena, "NIX_CFLAGS_COMPILE")) |nix_cflags_compile| {
104 is_nix = true;
105@@ -208,3 +253,11 @@ pub fn addWarningFmt(self: *NativePaths, comptime fmt: []const u8, args: anytype
106 pub fn addRPath(self: *NativePaths, s: []const u8) !void {
107 try self.rpaths.append(self.arena, s);
108 }
109+
110+pub fn isCrossGuix(arena: Allocator) bool {
111+ return process.hasEnvVar(arena, "CROSS_LIBRARY_PATH") catch false;
112+}
113+
114+pub fn isGuix(arena: Allocator) bool {
115+ return isCrossGuix(arena) or process.hasEnvVar(arena, "LIBRARY_PATH") catch false;
116+}
117diff --git a/src/main.zig b/src/main.zig
118index 5b0e211647..d27b63d5a3 100644
119--- a/src/main.zig
120+++ b/src/main.zig
121@@ -3706,7 +3706,8 @@ fn createModule(
122 }
123
124 // Trigger native system library path detection if necessary.
125- if (create_module.sysroot == null and
126+ if (std.zig.system.NativePaths.isCrossGuix(arena) or
127+ create_module.sysroot == null and
128 resolved_target.is_native_os and resolved_target.is_native_abi and
129 create_module.want_native_include_dirs)
130 {
131--
1322.46.0
133