From e918b368d93f61e0af31facfa4bd46f452d827d3 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sun, 24 Aug 2025 02:40:22 -0700
Subject: [PATCH] use sys-libc

---
 licenses.txt |  6 ++++++
 src/lib.zig  | 11 ++++++-----
 zig.mod      |  1 +
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/licenses.txt b/licenses.txt
index d4c94a95e939601ac7a79c42e59b40136b7f73e1..93caa3bb683f69e316307c76fcc3c6eb47084ddc 100644
--- a/licenses.txt
+++ b/licenses.txt
@@ -1,4 +1,10 @@
 MIT:
 = https://spdx.org/licenses/MIT
 - This
+- git https://github.com/nektro/zig-errno
 - git https://github.com/nektro/zig-extras
+- git https://github.com/nektro/zig-libc
+- git https://github.com/nektro/zig-sys-libc
+
+Unspecified:
+- system_lib c
diff --git a/src/lib.zig b/src/lib.zig
index 7c32ffe93cf64105119615873db5ebb6c38b11f7..a6355133ded102568be148b4030743e311b6aadc 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -2,6 +2,7 @@ const std = @import("std");
 const string = []const u8;
 const List = std.ArrayList(string);
 const extras = @import("extras");
+const libc = @import("sys-libc");
 
 var singles: std.StringArrayHashMap(string) = undefined;
 var multis: std.StringArrayHashMap(List) = undefined;
@@ -67,7 +68,7 @@ pub fn parse(k: FlagDashKind) !std.process.ArgIterator {
             }
         }
         std.log.err("Unrecognized argument: {s}{s}", .{ dash, name });
-        std.posix.exit(1);
+        libc.exit(1);
     }
     return argiter;
 }
@@ -78,7 +79,7 @@ pub fn parseEnv() !void {
     for (singles.keys(), singles.values()) |k, *v| {
         const u = try fixNameForEnv(alloc, k);
         defer alloc.free(u);
-        if (std.posix.getenv(u)) |value| {
+        if (libc.getenv(u)) |value| {
             v.* = value;
         }
     }
@@ -87,9 +88,9 @@ pub fn parseEnv() !void {
         while (true) : (n += 1) {
             const u = try fixNameForEnv(alloc, k);
             defer alloc.free(u);
-            const w = try std.fmt.allocPrint(alloc, "{s}_{d}", .{ u, n });
+            const w = try std.fmt.allocPrintZ(alloc, "{s}_{d}", .{ u, n });
             defer alloc.free(w);
-            if (std.posix.getenv(w)) |value| {
+            if (libc.getenv(w)) |value| {
                 try v.append(value);
                 continue;
             }
@@ -98,7 +99,7 @@ pub fn parseEnv() !void {
     }
 }
 
-fn fixNameForEnv(alloc: std.mem.Allocator, input: string) !string {
+fn fixNameForEnv(alloc: std.mem.Allocator, input: string) ![:0]const u8 {
     var ret = try extras.asciiUpper(alloc, input);
     for (0..ret.len) |i| {
         if (ret[i] == '-') {
diff --git a/zig.mod b/zig.mod
index 4f6013c15483e8dabf3b309637cc83122bfa7501..adbb0b96ee0121c2e55fd07764d3c2d1b0ff1d39 100644
--- a/zig.mod
+++ b/zig.mod
@@ -5,3 +5,4 @@ license: MIT
 description: Config management for Zig.
 dependencies:
   - src: git https://github.com/nektro/zig-extras
+  - src: git https://github.com/nektro/zig-sys-libc
-- 
2.54.0