1 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/tools/misc/figlet/default.nix b/pkgs/tools/misc/figlet/default.nix
index b297b03d86ba..f959440fc2ea 100644
--- a/pkgs/tools/misc/figlet/default.nix
+++ b/pkgs/tools/misc/figlet/default.nix
@@ -23,6 +23,10 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";
+  };
+
   makeFlags = [ "prefix=$(out)" "CC:=$(CC)" "LD:=$(CC)" ];
 
   postInstall = "cp -ar ${contributed}/* $out/share/figlet/";