From 205e793a9bb65f63c04c76c822b068d60f64b0bf Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sat, 4 Apr 2026 21:22:57 +0100
Subject: [PATCH] ht: fix the build against `gcc-15`

Without the chnage the build fails on `master` as
https://hydra.nixos.org/build/324508162:

```
evalparse.c: In function 'yyparse':
evalparse.c:1340:16: error: too many arguments to function 'yylex'; expected 0, have 1
 1340 |       yychar = yylex (&yylval);
      |                ^~~~~  ~~~~~~~
In file included from eval.h:49,
                 from evalparse.y:9:
lex.h:10:5: note: declared here
   10 | int yylex();
      |     ^~~~~
```
---
 pkgs/by-name/ht/ht/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/ht/ht/package.nix b/pkgs/by-name/ht/ht/package.nix
index 6e1e3023128a..822c66253825 100644
--- a/pkgs/by-name/ht/ht/package.nix
+++ b/pkgs/by-name/ht/ht/package.nix
@@ -24,6 +24,11 @@ stdenv.mkDerivation (finalAttrs: {
 
   env.NIX_CFLAGS_COMPILE = toString [ "-Wno-narrowing" ];
 
+  configureFlags = [
+    # Fails to build on -std=gnu23.
+    "CFLAGS=-std=gnu17"
+  ];
+
   meta = {
     description = "File editor/viewer/analyzer for executables";
     homepage = "https://hte.sourceforge.net";