package/qt6/qt6tools: allow building linguist tools without printsupport

This fixes a regression in qttools that would not build the qt linuguist
tools (lupdate, lrelease, etc.) when CUPS is not available.

Signed-off-by: Christian Hitz <christian.hitz@bbv.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/qt6/qt6tools/0001-CMake-Re-enable-lupdate-lconvert-lrelease-in-no-gui-builds.patch

@@ -0,0 +1,56 @@
+From 4be1823e4d459c89717e791ef27fd463ad04cb2b Mon Sep 17 00:00:00 2001
+From: Joerg Bornemann <joerg.bornemann@qt.io>
+Date: Tue, 11 Jun 2024 10:47:18 +0200
+Subject: [PATCH] CMake: Re-enable lupdate/lconvert/lrelease in no-gui builds
+
+This reverts 8dba0e48a0f7d3487b318a74f80f2d8e59c320f9 which disabled the
+'linguist' feature if the 'printsupport' feature wasn't available.
+However, the 'linguist' feature controls not only the Qt Linguist
+application but also the command line tools lupdate, lconvert, and
+lrelease. In no-gui builds, which also disable printsupport, the command
+line tools were unexpectedly missing.
+
+Fix the issue by extending the feature condition in
+src/linguist/CMakeLists.txt. As drive-by, fix the FEATURE_png condition
+that was still in QMake form from the initial conversion.
+
+Fixes: QTBUG-126189
+Task-number: QTBUG-125066
+Pick-to: 6.7 6.8
+Change-Id: I59ebb82fd5823165b307ffbc967d7fd89a071ede
+Reviewed-by:  Alexey Edelev <alexey.edelev@qt.io>
+Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
+
+Upstream: https://github.com/qt/qttools/commit/4be1823e4d459c89717e791ef27fd463ad04cb2b
+Signed-off-by: Christian Hitz <christian.hitz@bbv.ch>
+---
+ configure.cmake             | 1 -
+ src/linguist/CMakeLists.txt | 3 ++-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure.cmake b/configure.cmake
+index 51a5196da6..e0facf0b90 100644
+--- a/configure.cmake
++++ b/configure.cmake
+@@ -74,7 +74,6 @@ qt_feature("kmap2qmap" PRIVATE
+ qt_feature("linguist" PRIVATE
+     LABEL "Qt Linguist"
+     PURPOSE "Qt Linguist can be used by translator to translate text in Qt applications."
+-    CONDITION TARGET Qt::PrintSupport
+ )
+ qt_feature("pixeltool" PRIVATE
+     LABEL "pixeltool"
+diff --git a/src/linguist/CMakeLists.txt b/src/linguist/CMakeLists.txt
+index ef28c0ff3a..ee11963039 100644
+--- a/src/linguist/CMakeLists.txt
++++ b/src/linguist/CMakeLists.txt
+@@ -14,7 +14,8 @@ add_subdirectory(lrelease)
+ add_subdirectory(lrelease-pro)
+ add_subdirectory(lupdate)
+ add_subdirectory(lupdate-pro)
+-if(QT_FEATURE_process AND QT_FEATURE_pushbutton AND QT_FEATURE_toolbutton AND TARGET Qt::Widgets AND NOT no-png)
++if(QT_FEATURE_process AND QT_FEATURE_pushbutton AND QT_FEATURE_toolbutton
++    AND QT_FEATURE_png AND QT_FEATURE_printsupport AND TARGET Qt::Widgets)
+     add_subdirectory(linguist)
+ endif()
+ 

package/qt6/qt6tools/Config.in.host

@@ -18,7 +18,6 @@ if BR2_PACKAGE_HOST_QT6TOOLS
 
 config BR2_PACKAGE_HOST_QT6TOOLS_LINGUIST_TOOLS
 	bool "host linguist tools"
-	select BR2_PACKAGE_HOST_QT6BASE_PRINTSUPPORT
 	help
 	  Translate Qt C++ and Qt Quick applications into local
 	  languages.