From 0370b27ebb9750666b8386d4a202455fc0888b2f 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 1/3] blahtexml: ensure xsltproc is available during build

---
 pkgs/by-name/bl/blahtexml/package.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/bl/blahtexml/package.nix b/pkgs/by-name/bl/blahtexml/package.nix
index 5d146930d141..909010fef9c9 100644
--- a/pkgs/by-name/bl/blahtexml/package.nix
+++ b/pkgs/by-name/bl/blahtexml/package.nix
@@ -3,6 +3,7 @@
   lib,
   stdenv,
   libiconv,
+  libxslt,
   texliveFull,
   xercesc,
 }:
@@ -35,7 +36,10 @@ stdenv.mkDerivation (finalAttrs: {
     "doc"
   ];
 
-  nativeBuildInputs = [ texliveFull ]; # scheme-full needed for ucs package
+  nativeBuildInputs = [
+    libxslt
+    texliveFull # scheme-full needed for ucs package
+  ];
   buildInputs = [ xercesc ] ++ lib.optionals stdenv.hostPlatform.isDarwin [ libiconv ];
 
   buildFlags = [

From 8a3fcf9c9e89ba9ea097436186253e5f2bfb30a3 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 2/3] blahtexml: build with texliveBasic instead of texliveFull

---
 pkgs/by-name/bl/blahtexml/package.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/bl/blahtexml/package.nix b/pkgs/by-name/bl/blahtexml/package.nix
index 909010fef9c9..860fd4abbaa6 100644
--- a/pkgs/by-name/bl/blahtexml/package.nix
+++ b/pkgs/by-name/bl/blahtexml/package.nix
@@ -4,7 +4,7 @@
   stdenv,
   libiconv,
   libxslt,
-  texliveFull,
+  texliveBasic,
   xercesc,
 }:
 
@@ -38,7 +38,10 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [
     libxslt
-    texliveFull # scheme-full needed for ucs package
+    (texliveBasic.withPackages (ps: [
+      ps.cm-super
+      ps.ucs
+    ]))
   ];
   buildInputs = [ xercesc ] ++ lib.optionals stdenv.hostPlatform.isDarwin [ libiconv ];
 

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 3/3] 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 = [