Merge branch 'master' into jgrpp

# Conflicts:
#	.github/workflows/release.yml
#	bin/CMakeLists.txt
#	src/dock_gui.cpp
#	src/lang/brazilian_portuguese.txt
#	src/lang/catalan.txt
#	src/lang/czech.txt
#	src/lang/dutch.txt
#	src/lang/english.txt
#	src/lang/english_US.txt
#	src/lang/estonian.txt
#	src/lang/finnish.txt
#	src/lang/french.txt
#	src/lang/german.txt
#	src/lang/hungarian.txt
#	src/lang/indonesian.txt
#	src/lang/italian.txt
#	src/lang/japanese.txt
#	src/lang/korean.txt
#	src/lang/lithuanian.txt
#	src/lang/luxembourgish.txt
#	src/lang/norwegian_bokmal.txt
#	src/lang/polish.txt
#	src/lang/portuguese.txt
#	src/lang/romanian.txt
#	src/lang/russian.txt
#	src/lang/serbian.txt
#	src/lang/simplified_chinese.txt
#	src/lang/slovak.txt
#	src/lang/spanish.txt
#	src/lang/spanish_MX.txt
#	src/lang/swedish.txt
#	src/lang/tamil.txt
#	src/lang/ukrainian.txt
#	src/lang/vietnamese.txt
#	src/newgrf.cpp
#	src/newgrf_gui.cpp
#	src/object_gui.cpp
#	src/pathfinder/yapf/yapf_costrail.hpp
#	src/pathfinder/yapf/yapf_node_rail.hpp
#	src/rail_cmd.cpp
#	src/roadveh_cmd.cpp
#	src/town_cmd.cpp
#	src/vehicle.cpp
#	src/water_cmd.cpp

src/spritecache.cpp

@@ -279,7 +279,9 @@ static void ResizeSpriteOut(SpriteLoader::Sprite *sprite, ZoomLevel zoom)
 
 	SpriteLoader::CommonPixel *dst = sprite[zoom].data;
 	const SpriteLoader::CommonPixel *src = sprite[zoom - 1].data;
+#ifdef WITH_ASSERT
 	const SpriteLoader::CommonPixel *src_end = src + sprite[zoom - 1].height * sprite[zoom - 1].width;
+#endif
 
 	for (uint y = 0; y < sprite[zoom].height; y++) {
 		const SpriteLoader::CommonPixel *src_ln = src + sprite[zoom - 1].width;