From a33463bc5c1287f175c99e5533bdc8271a181187 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Sat, 13 Aug 2022 10:37:02 +0200
Subject: [PATCH] vte: Build developer docs

---
 pkgs/development/libraries/vte/default.nix | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/vte/default.nix b/pkgs/development/libraries/vte/default.nix
index 81b148a9756c..d3b16a08a698 100644
--- a/pkgs/development/libraries/vte/default.nix
+++ b/pkgs/development/libraries/vte/default.nix
@@ -14,6 +14,7 @@
 , gobject-introspection
 , vala
 , python3
+, gi-docgen
 , libxml2
 , gnutls
 , gperf
@@ -31,7 +32,7 @@ stdenv.mkDerivation rec {
   pname = "vte";
   version = "0.69.92";
 
-  outputs = [ "out" "dev" ];
+  outputs = [ "out" "dev" "devdoc" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
@@ -59,6 +60,7 @@ stdenv.mkDerivation rec {
     pkg-config
     vala
     python3
+    gi-docgen
   ];
 
   buildInputs = [
@@ -78,7 +80,9 @@ stdenv.mkDerivation rec {
     pango
   ];
 
-  mesonFlags = lib.optionals (!systemdSupport) [
+  mesonFlags = [
+    "-Ddocs=true"
+  ] ++ lib.optionals (!systemdSupport) [
     "-D_systemd=false"
   ] ++ lib.optionals (gtkVersion == "4") [
     "-Dgtk3=false"
@@ -98,6 +102,11 @@ stdenv.mkDerivation rec {
     patchShebangs src/modes.py
   '';
 
+  postFixup = ''
+    # Cannot be in postInstall, otherwise _multioutDocs hook in preFixup will move right back.
+    moveToOutput "share/doc" "$devdoc"
+  '';
+
   passthru = {
     updateScript = gnome.updateScript {
       packageName = pname;