From c0315605ed323e6260f7ffa7a618434bbb4a8d2b Mon Sep 17 00:00:00 2001
From: Kevin Nakamura <grinkers@grinkers.net>
Date: Fri, 25 Apr 2025 20:16:39 +0900
Subject: [PATCH] Explicitly set -std=gnu99 (via CMAKE_C_STANDARD) for linux
 targets when using the bundled feature.

---
 sdl2-sys/build.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sdl2-sys/build.rs b/sdl2-sys/build.rs
index 4831846995..052896d6fe 100644
--- a/sdl2-sys/build.rs
+++ b/sdl2-sys/build.rs
@@ -128,6 +128,8 @@ fn compile_sdl2(sdl2_build_path: &Path, target_os: &str) -> PathBuf {
                     cfg.cflag("-fcommon");
                 }
             }
+            // The bundled SDL uses `bool`, `false`, and `true` which are reserved keywords in c23
+            cfg.define("CMAKE_C_STANDARD", "99");
         }
     }