From 3f19a5742a9803bd1da6d55e4f96cdcf45b5863b Mon Sep 17 00:00:00 2001
From: Francisco Demartino <demartino.francisco@gmail.com>
Date: Sat, 8 Jan 2022 03:49:30 -0300
Subject: [PATCH] set value for _POSIX_C_SOURCE macro

this fixes the raylib build for me.

https://github.com/raysan5/raylib/commit/c46989a1d961f3d8f898348e25c2b5b948ade9b2
---
 lib.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib.zig b/lib.zig
index 2aead84..9bc32ff 100644
--- a/lib.zig
+++ b/lib.zig
@@ -14,7 +14,7 @@ pub fn Pkg(pkgdir: []const u8) type {
             const raylibFlags = &[_][]const u8{
                 "-std=c99",
                 "-DPLATFORM_DESKTOP",
-                "-D_POSIX_C_SOURCE",
+                "-D_POSIX_C_SOURCE=199309L",
                 "-DGL_SILENCE_DEPRECATION",
             };