From 72b5b9ee5c2a5af9bf06c4a9d0cda4e0846ae243 Mon Sep 17 00:00:00 2001
From: Vincenzo Mantova <1962985+xworld21@users.noreply.github.com>
Date: Sat, 23 May 2026 22:02:04 +0100
Subject: [PATCH] blahtexml: change --replace into --replace-fail

---
 pkgs/by-name/bl/blahtexml/package.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/bl/blahtexml/package.nix b/pkgs/by-name/bl/blahtexml/package.nix
index 860fd4abbaa6..b4992424228d 100644
--- a/pkgs/by-name/bl/blahtexml/package.nix
+++ b/pkgs/by-name/bl/blahtexml/package.nix
@@ -22,13 +22,13 @@ stdenv.mkDerivation (finalAttrs: {
   postPatch =
     lib.optionalString stdenv.cc.isClang ''
       substituteInPlace makefile \
-        --replace "\$(CXX)" "\$(CXX) -std=c++98"
+        --replace-fail "\$(CXX)" "\$(CXX) -std=c++98"
     ''
     +
     # fix the doc build on TeX Live 2023
     ''
       substituteInPlace Documentation/manual.tex \
-        --replace '\usepackage[utf8x]{inputenc}' '\usepackage[utf8]{inputenc}'
+        --replace-fail '\usepackage[utf8x]{inputenc}' '\usepackage[utf8]{inputenc}'
     '';
 
   outputs = [