Turn off a new GCC warning that forbids build of older Emacsens

purcell · Jan 1, 2025 · ace2986 · ace2986
1 parent 2cacaf6
commit ace2986
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/emacs.nix b/emacs.nix
@@ -101,6 +101,12 @@ stdenv.mkDerivation rec {
     ''
   ];
 
+  env = lib.optionalAttrs (stdenv.cc.isGNU && lib.versionOlder version "24.3") {
+    NIX_CFLAGS_COMPILE = toString [
+      "-Wno-error=implicit-function-declaration"
+    ];
+  };
+
   installTargets = "tags install";
 
   # Create site-start.el which is needed by the wrapper