diff --git a/config.lib b/config.lib
index 3e0ab706f2..2abf190c2d 100644
--- a/config.lib
+++ b/config.lib
@@ -1407,7 +1407,9 @@ make_cflags_and_ldflags() {
 	# Also make makedepend aware of compiler's built-in defines.
 	if [ "$with_makedepend" != "0" ]; then
 		cflags_makedep="`echo | $cxx_host -E -x c++ -dM - | sed 's@.define @-D@g;s@ .*@ @g;s@(.*)@@g' | tr -d '\r\n'`"
-		cflags_makedep="$cflags_makedep `echo "$CFLAGS" | sed 's@ /@ -@g;s@-I[ ]*[^ ]*@@g'`"
+
+		# Please escape ALL " within ` because e.g. "" terminates the string in some sh implementations
+		cflags_makedep="$cflags_makedep `echo \"$CFLAGS\" | sed 's@ /@ -@g;s@-I[ ]*[^ ]*@@g'`"
 	else
 		makedepend=""
 	fi
diff --git a/configure b/configure
index 710c02163d..1c54a7b44d 100755
--- a/configure
+++ b/configure
@@ -85,7 +85,7 @@ if [ ! -f "$LANG_DIR/english.txt" ]; then
 fi
 
 # Read the source.list and process it
-SRCS="`< $ROOT_DIR/source.list tr '\r' '\n' | $awk '
+AWKCOMMAND='
 	{  }
 	/^(	*)#end/  { if (deep == skip) { skip -= 1; } deep -= 1; next; }
 	/^(	*)#else/ { if (deep == skip) { skip -= 1; } else if (deep - 1 == skip) { skip += 1; } next; }
@@ -130,13 +130,17 @@ SRCS="`< $ROOT_DIR/source.list tr '\r' '\n' | $awk '
 			print $0;
 		}
 	}
-' | $PIPE_SORT`"
+'
 
-OBJS_C="`  echo \"$SRCS\" | $awk ' { ORS = " " } /\.c$/   { gsub(".c$",   ".o", $0); print $0; }'`"
-OBJS_CPP="`echo \"$SRCS\" | $awk ' { ORS = " " } /\.cpp$/ { gsub(".cpp$", ".o", $0); print $0; }'`"
-OBJS_MM="` echo \"$SRCS\" | $awk ' { ORS = " " } /\.mm$/  { gsub(".mm$",  ".o", $0); print $0; }'`"
-OBJS_RC="` echo \"$SRCS\" | $awk ' { ORS = " " } /\.rc$/  { gsub(".rc$",  ".o", $0); print $0; }'`"
-SRCS="`    echo \"$SRCS\" | $awk ' { ORS = " " } { print $0; }'`"
+# Read the source.list and process it
+# Please escape ALL " within ` because e.g. "" terminates the string in some sh implementations
+SRCS="`< $ROOT_DIR/source.list tr '\r' '\n' | $awk \"$AWKCOMMAND\" | $PIPE_SORT`"
+
+OBJS_C="`  echo \"$SRCS\" | $awk ' { ORS = \" \" } /\.c$/   { gsub(\".c$\",   \".o\", $0); print $0; }'`"
+OBJS_CPP="`echo \"$SRCS\" | $awk ' { ORS = \" \" } /\.cpp$/ { gsub(\".cpp$\", \".o\", $0); print $0; }'`"
+OBJS_MM="` echo \"$SRCS\" | $awk ' { ORS = \" \" } /\.mm$/  { gsub(\".mm$\",  \".o\", $0); print $0; }'`"
+OBJS_RC="` echo \"$SRCS\" | $awk ' { ORS = \" \" } /\.rc$/  { gsub(\".rc$\",  \".o\", $0); print $0; }'`"
+SRCS="`    echo \"$SRCS\" | $awk ' { ORS = \" \" } { print $0; }'`"
 
 # In makefiles, we always use -u for sort
 if [ -z "$sort" ]; then
diff --git a/readme.txt b/readme.txt
index a4103bdd24..aec1296768 100644
--- a/readme.txt
+++ b/readme.txt
@@ -17,6 +17,7 @@ Table of Contents:
 5.0) OpenTTD features
 6.0) Configuration File
 7.0) Compiling
+ * 7.1) Required/optional libraries
 8.0) Translating
  * 8.1 Guidelines
  * 8.2 Translation
@@ -319,18 +320,12 @@ Windows:
   You can also build it using the Makefile with MSYS/MinGW or Cygwin/MinGW.
   Please read the Makefile for more information.
 
-Solaris 10:
-  You need g++ (version 3 or higher), together with SDL. Installation of
-  libpng and zlib is recommended. For the first build it is required
-  to execute "bash configure" first. Note that ./configure does not work
-  yet. It is likely that you don't have a strip binary, so use the
-  --disable-strip option in that case. Fontconfig (>2.3.0) and freetype
-  are optional. "make run" will then run the program.
+Solaris, FreeBSD, OpenBSD:
+  Use "gmake", but do a "./configure" before the first build.
 
-Unix:
+Linux/Unix:
   OpenTTD can be built with GNU "make". On non-GNU systems it's called "gmake".
   However, for the first build one has to do a "./configure" first.
-  Note that you need SDL-devel 1.2.5 (or higher) to compile OpenTTD.
 
 MacOS X:
   Use "make" or Xcode (which will then call make for you)
@@ -342,15 +337,6 @@ MacOS X:
 BeOS:
   Use "make", but do a "./configure" before the first build.
 
-FreeBSD:
-  You need the port devel/sdl12 for a non-dedicated build.
-  graphics/png is optional for screenshots in the PNG format.
-  Use "gmake", but do a "./configure" before the first build.
-
-OpenBSD:
-  Use "gmake", but do a "./configure" before the first build.
-  Note that you need the port devel/sdl to compile OpenTTD.
-
 MorphOS:
   Use "make". However, for the first build one has to do a "./configure" first.
   Note that you need the MorphOS SDK, latest libnix updates (else C++ parts of
@@ -371,6 +357,8 @@ DOS:
   will be generated that does not need cwsdpmi.exe by adding the cswdstub.exe
   to the created OpenTTD binary.
 
+7.1) Required/optional libraries:
+---- -------------------
 The following libraries are used by OpenTTD for:
   - libSDL/liballegro: hardware access (video, sound, mouse)
   - zlib: (de)compressing of savegames
@@ -379,6 +367,11 @@ The following libraries are used by OpenTTD for:
   - libfontconfig: searching for fonts, resolving font names to actual fonts
   - libicu: handling of right-to-left scripts (e.g. Arabic and Persian)
 
+OpenTTD does not require any of the libraries to be present, but without
+zlib you cannot open most savegames or use the content downloading system.
+Without libSDL/liballegro on non-Windows and non-MacOS X machines you have
+no graphical user interface; you would be building a dedicated server.
+
 8.0) Translating:
 ---- -------------------
 See http://www.openttd.org/development for up-to-date information.
diff --git a/src/graph_gui.cpp b/src/graph_gui.cpp
index 7db4320b4f..0d5e223579 100644
--- a/src/graph_gui.cpp
+++ b/src/graph_gui.cpp
@@ -99,7 +99,7 @@ static const Widget _graph_legend_widgets[] = {
 };
 
 static const WindowDesc _graph_legend_desc(
-	WDP_AUTO, WDP_AUTO, 250, 198, 250, 198,
+	WDP_AUTO, WDP_AUTO, 250, 196, 250, 196,
 	WC_GRAPH_LEGEND, WC_NONE,
 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
 	_graph_legend_widgets
diff --git a/src/network/core/tcp_content.cpp b/src/network/core/tcp_content.cpp
index 7596cced83..870a9d38e0 100644
--- a/src/network/core/tcp_content.cpp
+++ b/src/network/core/tcp_content.cpp
@@ -38,6 +38,7 @@ bool ContentInfo::IsSelected() const
 	switch (this->state) {
 		case ContentInfo::SELECTED:
 		case ContentInfo::AUTOSELECTED:
+		case ContentInfo::ALREADY_HERE:
 			return true;
 
 		default:
diff --git a/src/network/network_content.cpp b/src/network/network_content.cpp
index 9aa479f011..798f24fd0b 100644
--- a/src/network/network_content.cpp
+++ b/src/network/network_content.cpp
@@ -245,7 +245,7 @@ void ClientNetworkContentSocketHandler::DownloadSelectedContent(uint &files, uin
 	ContentID *ids = MallocT<ContentID>(infos.Length());
 	for (ContentIterator iter = infos.Begin(); iter != infos.End(); iter++) {
 		const ContentInfo *ci = *iter;
-		if (!ci->IsSelected()) continue;
+		if (!ci->IsSelected() || ci->state == ContentInfo::ALREADY_HERE) continue;
 
 		ids[files++] = ci->id;
 		bytes += ci->filesize;
diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index 3179edbfdf..6e16f964d6 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -551,7 +551,7 @@ bool NewHouseTileLoop(TileIndex tile)
 	}
 
 	TriggerHouse(tile, HOUSE_TRIGGER_TILE_LOOP);
-	TriggerHouse(tile, HOUSE_TRIGGER_TILE_LOOP_TOP);
+	if (hs->building_flags & BUILDING_HAS_1_TILE) TriggerHouse(tile, HOUSE_TRIGGER_TILE_LOOP_TOP);
 
 	if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_START_STOP)) {
 		/* If this house is marked as having a synchronised callback, all the
@@ -580,6 +580,7 @@ bool NewHouseTileLoop(TileIndex tile)
 	}
 
 	SetHouseProcessingTime(tile, hs->processing_time);
+	MarkTileDirtyByTile(tile);
 	return true;
 }
 
@@ -615,7 +616,11 @@ static void DoTriggerHouse(TileIndex tile, HouseTrigger trigger, byte base_rando
 			break;
 
 		case HOUSE_TRIGGER_TILE_LOOP_TOP:
-			if (!first) break;
+			if (!first) {
+				/* The top tile is marked dirty by the usual TileLoop */
+				MarkTileDirtyByTile(tile);
+				break;
+			}
 			/* Random value of first tile already set. */
 			if (hs->building_flags & BUILDING_2_TILES_Y)   DoTriggerHouse(TILE_ADDXY(tile, 0, 1), trigger, random_bits, false);
 			if (hs->building_flags & BUILDING_2_TILES_X)   DoTriggerHouse(TILE_ADDXY(tile, 1, 0), trigger, random_bits, false);
diff --git a/src/script/squirrel_helper.hpp b/src/script/squirrel_helper.hpp
index ba4069d742..580f49cbd7 100644
--- a/src/script/squirrel_helper.hpp
+++ b/src/script/squirrel_helper.hpp
@@ -80,8 +80,8 @@ namespace SQConvert {
 	template <> inline int Return<int64>       (HSQUIRRELVM vm, int64 res)       { sq_pushinteger(vm, ClampToI32(res)); return 1; }
 	template <> inline int Return<Money>       (HSQUIRRELVM vm, Money res)       { sq_pushinteger(vm, ClampToI32(res)); return 1; }
 	template <> inline int Return<bool>        (HSQUIRRELVM vm, bool res)        { sq_pushbool   (vm, res); return 1; }
-	template <> inline int Return<char *>      (HSQUIRRELVM vm, char *res)       { if (res == NULL) sq_pushnull(vm); else {sq_pushstring (vm, OTTD2FS(res), strlen(res)); free(res);} return 1; }
-	template <> inline int Return<const char *>(HSQUIRRELVM vm, const char *res) { if (res == NULL) sq_pushnull(vm); else {sq_pushstring (vm, OTTD2FS(res), strlen(res));} return 1; }
+	template <> inline int Return<char *>      (HSQUIRRELVM vm, char *res)       { if (res == NULL) sq_pushnull(vm); else { sq_pushstring(vm, OTTD2FS(res), -1); free(res); } return 1; }
+	template <> inline int Return<const char *>(HSQUIRRELVM vm, const char *res) { if (res == NULL) sq_pushnull(vm); else { sq_pushstring(vm, OTTD2FS(res), -1); } return 1; }
 	template <> inline int Return<void *>      (HSQUIRRELVM vm, void *res)       { sq_pushuserpointer(vm, res); return 1; }
 
 	/**