diff --git a/Makefile.in b/Makefile.in
index f00f3ccce3..c2cf0bf2d1 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -93,7 +93,7 @@ ifeq ($(shell if test -f config.cache; then echo 1; fi), 1)
 	@echo " Going to reconfigure with last known settings..."
 	@echo "----------------"
 # Make sure we don't lock config.cache
-	@$(shell cat config.cache | sed 's~\\ ~\\\\ ~g') || exit 1
+	@$(shell cat config.cache | sed 's@\\ @\\\\ @g') || exit 1
 	@echo "----------------"
 	@echo "Reconfig done. Please re-execute make."
 	@echo "----------------"
diff --git a/Makefile.msvc b/Makefile.msvc
index 826ff8543b..0d88f6685c 100644
--- a/Makefile.msvc
+++ b/Makefile.msvc
@@ -20,7 +20,7 @@ SRC_DIR = "$(ROOT_DIR)/src"
 BUNDLE_DIR = "$(ROOT_DIR)/bundle"
 BUNDLES_DIR = "$(ROOT_DIR)/bundles"
 TTD = "openttd.exe"
-TARGET := $(shell echo $(PLATFORM) | sed "s~win64~x64~;s~win32~Win32~")
+TARGET := $(shell echo $(PLATFORM) | sed "s@win64@x64@;s@win32@Win32@")
 
 all:
 	$(Q)cp objs/$(TARGET)/Release/$(TTD) $(BIN_DIR)/$(TTD)
diff --git a/Makefile.src.in b/Makefile.src.in
index 2aa45744a1..897f8ba784 100644
--- a/Makefile.src.in
+++ b/Makefile.src.in
@@ -57,7 +57,7 @@ ENDIAN_TARGETS := endian_target.h $(ENDIAN_CHECK)
 # For more information, please check:
 #  http://maillist.openttd.org/pipermail/devs/2007-April/000284.html
 #  http://maillist.openttd.org/pipermail/devs/2007-February/000248.html
-GCC295_FIX=sed -r 's~^(\t*)(.*)( const )([A-Za-z0-9_ ]+(\[.*\]){2,})(( = \{)|(;))(.*)$$~\1\2 \4\6\8\9~g'
+GCC295_FIX=sed -r 's@^(\t*)(.*)( const )([A-Za-z0-9_ ]+(\[.*\]){2,})(( = \{)|(;))(.*)$$@\1\2 \4\6\8\9@g'
 # This 'sed' removes the 3rd '4' in the # lines of the -E output of
 #  gcc 2.95.3 and lower, as it should indicate that it is a C-linkage, but the
 #  compiler can't handle that information (just don't ask). So we remove it
@@ -65,7 +65,7 @@ GCC295_FIX=sed -r 's~^(\t*)(.*)( const )([A-Za-z0-9_ ]+(\[.*\]){2,})(( = \{)|(;)
 # Furthermore gcc 2.95 has some trouble with protected and private when
 #  accessing the protected/private stuff of the enclosing class (or the
 #  super class of the enclosing class).
-GCC295_FIX_2=sed -e 's~\(^\# [0-9][0-9]* "[^"]*"[ 0-9]*\) 4$$~\1~g;s~private:~public:~g;s~protected:~public:~g'
+GCC295_FIX_2=sed -e 's@\(^\# [0-9][0-9]* "[^"]*"[ 0-9]*\) 4$$@\1@g;s@private:@public:@g;s@protected:@public:@g'
 
 # Check if we want to show what we are doing
 ifdef VERBOSE
@@ -98,7 +98,7 @@ MODIFIED := $(shell echo "$(VERSIONS)" | cut -f 3 -d'	')
 ifdef REVISION
 # Use specified revision (which should be of the form "r000").
 REV := $(REVISION)
-REV_NR := $(shell echo $(REVISION) | sed "s~[^0-9]~~g")
+REV_NR := $(shell echo $(REVISION) | sed "s@[^0-9]@@g")
 else
 # Use autodetected revisions
 REV      := $(shell echo "$(VERSIONS)" | cut -f 1 -d'	')
@@ -143,15 +143,15 @@ endif
 
 $(OBJS_C:%.o=%.d): %.d: $(SRC_DIR)/%.c $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.c=%.c)'
-	$(Q)$(CC_HOST) $(CC_CFLAGS) $(CFLAGS) -MM $< | sed 's~^$(@F:%.d=%.o):~$@ $(@:%.d=%.o):~' > $@
+	$(Q)$(CC_HOST) $(CC_CFLAGS) $(CFLAGS) -MM $< | sed 's@^$(@F:%.d=%.o):@$@ $(@:%.d=%.o):@' > $@
 
 $(OBJS_CPP:%.o=%.d): %.d: $(SRC_DIR)/%.cpp $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.cpp=%.cpp)'
-	$(Q)$(CXX_HOST) $(CFLAGS) -MM $< | sed 's~^$(@F:%.d=%.o):~$@ $(@:%.d=%.o):~' > $@
+	$(Q)$(CXX_HOST) $(CFLAGS) -MM $< | sed 's@^$(@F:%.d=%.o):@$@ $(@:%.d=%.o):@' > $@
 
 $(OBJS_MM:%.o=%.d): %.d: $(SRC_DIR)/%.mm $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.mm=%.mm)'
-	$(Q)$(CC_HOST) $(CFLAGS) -MM $< | sed 's~^$(@F:%.d=%.o):~$@ $(@:%.d=%.o):~' > $@
+	$(Q)$(CC_HOST) $(CFLAGS) -MM $< | sed 's@^$(@F:%.d=%.o):@$@ $(@:%.d=%.o):@' > $@
 
 $(OBJS_RC:%.o=%.d): %.d: $(SRC_DIR)/%.rc $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.mm=%.mm)'
@@ -182,7 +182,7 @@ endif
 
 # Convert x:/... paths to /x/... for mingw
 ifeq ($(OS), MINGW)
-	@cat Makefile.dep.tmp | sed 's~\([a-zA-Z]\):\/~\/\1\/~g' > Makefile.dep.tmp.mingw
+	@cat Makefile.dep.tmp | sed 's@\([a-zA-Z]\):\/@\/\1\/@g' > Makefile.dep.tmp.mingw
 	@cp Makefile.dep.tmp.mingw Makefile.dep.tmp
 	@rm -f Makefile.dep.tmp.mingw
 endif
@@ -211,7 +211,7 @@ endif
 	{                                   \
 		print $$0                         \
 	}                                   \
-	' < Makefile.dep.tmp | sed 's~  *~ ~g;s~ $$~~' | $(SORT) > Makefile.dep
+	' < Makefile.dep.tmp | sed 's@  *@ @g;s@ $$@@' | $(SORT) > Makefile.dep
 
 	$(Q)rm -f Makefile.dep.tmp Makefile.dep.tmp.bak
 
@@ -280,10 +280,10 @@ $(ENDIAN_CHECK): $(SRC_DIR)/endian_check.cpp
 # Revision files
 
 $(SRC_DIR)/rev.cpp: $(CONFIG_CACHE_VERSION) $(SRC_DIR)/rev.cpp.in
-	$(Q)cat $(SRC_DIR)/rev.cpp.in      | sed "s~@@REVISION@@~$(REV_NR)~g;s~@@VERSION@@~$(REV)~g;s~@@MODIFIED@@~$(MODIFIED)~g;s~@@DATE@@~`date +%d.%m.%y`~g" > $(SRC_DIR)/rev.cpp
+	$(Q)cat $(SRC_DIR)/rev.cpp.in      | sed "s@\!\!REVISION\!\!@$(REV_NR)@g;s@!!VERSION!!@$(REV)@g;s@!!MODIFIED!!@$(MODIFIED)@g;s@!!DATE!!@`date +%d.%m.%y`@g" > $(SRC_DIR)/rev.cpp
 
 $(SRC_DIR)/ottdres.rc: $(CONFIG_CACHE_VERSION) $(SRC_DIR)/ottdres.rc.in
-	$(Q)cat $(SRC_DIR)/ottdres.rc.in | sed "s~@@REVISION@@~$(REV_NR)~g;s~@@VERSION@@~$(REV)~g;s~@@DATE@@~`date +%d.%m.%y`~g" > $(SRC_DIR)/ottdres.rc
+	$(Q)cat $(SRC_DIR)/ottdres.rc.in | sed "s@\!\!REVISION\!\!@$(REV_NR)@g;s@!!VERSION!!@$(REV)@g;s@!!DATE!!@`date +%d.%m.%y`@g" > $(SRC_DIR)/ottdres.rc
 
 FORCE:
 
diff --git a/bin/ai/regression/regression.txt b/bin/ai/regression/regression.txt
index 2f5613f3b4..d19c93605a 100644
--- a/bin/ai/regression/regression.txt
+++ b/bin/ai/regression/regression.txt
@@ -1072,7 +1072,7 @@
   GetAutoRenewStatus();        true
   SetAutoRenewStatus(true);    false
   SetAutoRenewStatus(false);   true
-  GetAutoRenewMonths();        -6
+  GetAutoRenewMonths();        6
   SetAutoRenewMonths(-12);     true
   GetAutoRenewMonths();        -12
   SetAutoRenewMonths(-12);     false
diff --git a/config.lib b/config.lib
index 53f3752b34..301039d3db 100644
--- a/config.lib
+++ b/config.lib
@@ -415,7 +415,7 @@ save_params() {
 	configure="$CONFIGURE_EXECUTABLE --ignore-extra-parameters"
 	for p in $save_params_array; do
 		eval "v=\"\$$p\""
-		p=`echo "$p" | sed 's~_~-~g;s~\n~~g;s~ ~\\ ~g'`
+		p=`echo "$p" | sed 's@_@-@g;s@\n@@g;s@ @\\ @g'`
 		# Only save those params that aren't empty
 		configure="$configure --$p=\"$v\""
 	done
@@ -904,7 +904,7 @@ check_params() {
 			doc_dir="$data_dir/docs"
 		fi
 	else
-		doc_dir="`echo $doc_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		doc_dir="`echo $doc_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	if [ "$icon_theme_dir" = "1" ]; then
@@ -914,7 +914,7 @@ check_params() {
 			icon_theme_dir=""
 		fi
 	else
-		icon_theme_dir="`echo $icon_theme_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		icon_theme_dir="`echo $icon_theme_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	if [ "$personal_dir" = "1" ]; then
@@ -926,7 +926,7 @@ check_params() {
 			personal_dir=".openttd"
 		fi
 	else
-		personal_dir="`echo $personal_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		personal_dir="`echo $personal_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	if [ "$shared_dir" = "1" ]; then
@@ -937,7 +937,7 @@ check_params() {
 			shared_dir=""
 		fi
 	else
-		shared_dir="`echo $shared_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		shared_dir="`echo $shared_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	if [ "$man_dir" = "1" ]; then
@@ -948,7 +948,7 @@ check_params() {
 			man_dir=""
 		fi
 	else
-		man_dir="`echo $man_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		man_dir="`echo $man_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	if [ "$menu_dir" = "1" ]; then
@@ -959,7 +959,7 @@ check_params() {
 			menu_dir=""
 		fi
 	else
-		menu_dir="`echo $menu_dir | sed 's~\([^\]\)\\\\ ~\1\\\\\\\\ ~g;s~\([^\]\) ~\1\\\\\\\\ ~g'`"
+		menu_dir="`echo $menu_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
 	fi
 
 	# "set_universal_binary_flags" needs to be before "detect_iconv"
@@ -1207,7 +1207,7 @@ make_cflags_and_ldflags() {
 	if [ -n "$sdl_config" ]; then
 		CFLAGS="$CFLAGS -DWITH_SDL"
 		# SDL must not add _GNU_SOURCE as it breaks many platforms
-		CFLAGS="$CFLAGS `$sdl_config --cflags | sed 's~-D_GNU_SOURCE[^ ]*~~'`"
+		CFLAGS="$CFLAGS `$sdl_config --cflags | sed 's@-D_GNU_SOURCE[^ ]*@@'`"
 		if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ] && [ "$os" != "WINCE" ]; then
 			if [ "$enable_static" != "0" ]; then
 				LIBS="$LIBS `$sdl_config --static-libs`"
@@ -1269,7 +1269,7 @@ make_cflags_and_ldflags() {
 			if [ "$os" = "OSX" ]; then
 				# fontconfig_config goes via pkg-config on all systems, which doesn't know --prefix
 				# Also, despite the reason we link to the .a file ourself (because we can't use -static), we do need to ask pkg-config about possible other deps
-				LIBS="$LIBS `$fontconfig_config --variable=prefix`/lib/libfontconfig.a `$fontconfig_config --libs --static | sed s~-lfontconfig~~`"
+				LIBS="$LIBS `$fontconfig_config --variable=prefix`/lib/libfontconfig.a `$fontconfig_config --libs --static | sed s@-lfontconfig@@`"
 			else
 				LIBS="$LIBS `$fontconfig_config --libs --static | tr '\n\r' '  '`"
 			fi
@@ -1401,8 +1401,10 @@ make_cflags_and_ldflags() {
 	# Lovely hackish, not?
 	# Btw, this almost always comes from outside the configure, so it is
 	#  not something we can control.
+	# Also make makedepend aware of compiler's built-in defines.
 	if [ "$with_makedepend" != "0" ]; then
-		cflags_makedep="` echo "$CFLAGS" | sed 's~ /~ -~g;s~-I[ ]*[^ ]*~~g'`"
+		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 "$CFLAGS" | sed 's@ /@ -@g;s@-I[ ]*[^ ]*@@g'`"
 	else
 		makedepend=""
 	fi
@@ -2562,104 +2564,104 @@ make_sed() {
 	#  use multiple OBJS_DIR, because all in-between
 	#  binaries are stored in there, and nowhere else.
 	SRC_REPLACE="
-		s~!!CC_HOST!!~$cc_host~g;
-		s~!!CXX_HOST!!~$cxx_host~g;
-		s~!!CC_BUILD!!~$cc_build~g;
-		s~!!CXX_BUILD!!~$cxx_build~g;
-		s~!!WINDRES!!~$windres~g;
-		s~!!STRIP!!~$strip $strip_arg~g;
-		s~!!LIPO!!~$lipo~g;
-		s~!!CC_CFLAGS!!~$CC_CFLAGS~g;
-		s~!!CFLAGS!!~$T_CFLAGS~g;
-		s~!!CFLAGS_BUILD!!~$CFLAGS_BUILD~g;
-		s~!!STRGEN_FLAGS!!~$strgen_flags~g;
-		s~!!LIBS!!~$LIBS~g;
-		s~!!LDFLAGS!!~$T_LDFLAGS~g;
-		s~!!BIN_DIR!!~$BIN_DIR~g;
-		s~!!ROOT_DIR!!~$ROOT_DIR~g;
-		s~!!MEDIA_DIR!!~$MEDIA_DIR~g;
-		s~!!SOURCE_LIST!!~$SOURCE_LIST~g;
-		s~!!SRC_OBJS_DIR!!~$SRC_OBJS_DIR~g;
-		s~!!LANG_OBJS_DIR!!~$LANG_OBJS_DIR~g;
-		s~!!SRC_DIR!!~$SRC_DIR~g;
-		s~!!SCRIPT_SRC_DIR!!~$SCRIPT_SRC_DIR~g;
-		s~!!OSXAPP!!~$OSXAPP~g;
-		s~!!LANG_DIR!!~$LANG_DIR~g;
-		s~!!TTD!!~$TTD~g;
-		s~!!BINARY_DIR!!~$prefix_dir/$binary_dir~g;
-		s~!!DATA_DIR!!~$prefix_dir/$data_dir~g;
-		s~!!DOC_DIR!!~$prefix_dir/$doc_dir~g;
-		s~!!MAN_DIR!!~$prefix_dir/$man_dir~g;
-		s~!!ICON_DIR!!~$prefix_dir/$icon_dir~g;
-		s~!!ICON_THEME_DIR!!~$prefix_dir/$icon_theme_dir~g;
-		s~!!PERSONAL_DIR!!~$personal_dir~g;
-		s~!!SHARED_DIR!!~$shared_dir~g;
-		s~!!INSTALL_DIR!!~$install_dir~g;
-		s~!!BINARY_NAME!!~$binary_name~g;
-		s~!!STRGEN!!~$STRGEN~g;
-		s~!!ENDIAN_CHECK!!~$ENDIAN_CHECK~g;
-		s~!!ENDIAN_FORCE!!~$endian~g;
-		s~!!STAGE!!~$STAGE~g;
-		s~!!MAKEDEPEND!!~$makedepend~g;
-		s~!!CFLAGS_MAKEDEP!!~$cflags_makedep~g;
-		s~!!SORT!!~$sort~g;
-		s~!!CONFIG_CACHE_COMPILER!!~config.cache.compiler~g;
-		s~!!CONFIG_CACHE_LINKER!!~config.cache.linker~g;
-		s~!!CONFIG_CACHE_ENDIAN!!~config.cache.endian~g;
-		s~!!CONFIG_CACHE_SOURCE!!~config.cache.source~g;
-		s~!!CONFIG_CACHE_VERSION!!~config.cache.version~g;
-		s~!!CONFIG_CACHE_SOURCE_LIST!!~config.cache.source.list~g;
-		s~!!CONFIG_CACHE_PWD!!~config.cache.pwd~g;
-		s~!!LANG_SUPPRESS!!~$lang_suppress~g;
-		s~!!OBJS_C!!~$OBJS_C~g;
-		s~!!OBJS_CPP!!~$OBJS_CPP~g;
-		s~!!OBJS_MM!!~$OBJS_MM~g;
-		s~!!OBJS_RC!!~$OBJS_RC~g;
-		s~!!SRCS!!~$SRCS~g;
-		s~!!OS!!~$os~g;
-		s~!!CONFIGURE_FILES!!~$CONFIGURE_FILES~g;
-		s~!!REVISION!!~$revision~g;
-		s~!!AWK!!~$awk~g;
-		s~!!GCC295!!~$gcc295~g;
-		s~!!DISTCC!!~$distcc~g;
+		s@!!CC_HOST!!@$cc_host@g;
+		s@!!CXX_HOST!!@$cxx_host@g;
+		s@!!CC_BUILD!!@$cc_build@g;
+		s@!!CXX_BUILD!!@$cxx_build@g;
+		s@!!WINDRES!!@$windres@g;
+		s@!!STRIP!!@$strip $strip_arg@g;
+		s@!!LIPO!!@$lipo@g;
+		s@!!CC_CFLAGS!!@$CC_CFLAGS@g;
+		s@!!CFLAGS!!@$T_CFLAGS@g;
+		s@!!CFLAGS_BUILD!!@$CFLAGS_BUILD@g;
+		s@!!STRGEN_FLAGS!!@$strgen_flags@g;
+		s@!!LIBS!!@$LIBS@g;
+		s@!!LDFLAGS!!@$T_LDFLAGS@g;
+		s@!!BIN_DIR!!@$BIN_DIR@g;
+		s@!!ROOT_DIR!!@$ROOT_DIR@g;
+		s@!!MEDIA_DIR!!@$MEDIA_DIR@g;
+		s@!!SOURCE_LIST!!@$SOURCE_LIST@g;
+		s@!!SRC_OBJS_DIR!!@$SRC_OBJS_DIR@g;
+		s@!!LANG_OBJS_DIR!!@$LANG_OBJS_DIR@g;
+		s@!!SRC_DIR!!@$SRC_DIR@g;
+		s@!!SCRIPT_SRC_DIR!!@$SCRIPT_SRC_DIR@g;
+		s@!!OSXAPP!!@$OSXAPP@g;
+		s@!!LANG_DIR!!@$LANG_DIR@g;
+		s@!!TTD!!@$TTD@g;
+		s@!!BINARY_DIR!!@$prefix_dir/$binary_dir@g;
+		s@!!DATA_DIR!!@$prefix_dir/$data_dir@g;
+		s@!!DOC_DIR!!@$prefix_dir/$doc_dir@g;
+		s@!!MAN_DIR!!@$prefix_dir/$man_dir@g;
+		s@!!ICON_DIR!!@$prefix_dir/$icon_dir@g;
+		s@!!ICON_THEME_DIR!!@$prefix_dir/$icon_theme_dir@g;
+		s@!!PERSONAL_DIR!!@$personal_dir@g;
+		s@!!SHARED_DIR!!@$shared_dir@g;
+		s@!!INSTALL_DIR!!@$install_dir@g;
+		s@!!BINARY_NAME!!@$binary_name@g;
+		s@!!STRGEN!!@$STRGEN@g;
+		s@!!ENDIAN_CHECK!!@$ENDIAN_CHECK@g;
+		s@!!ENDIAN_FORCE!!@$endian@g;
+		s@!!STAGE!!@$STAGE@g;
+		s@!!MAKEDEPEND!!@$makedepend@g;
+		s@!!CFLAGS_MAKEDEP!!@$cflags_makedep@g;
+		s@!!SORT!!@$sort@g;
+		s@!!CONFIG_CACHE_COMPILER!!@config.cache.compiler@g;
+		s@!!CONFIG_CACHE_LINKER!!@config.cache.linker@g;
+		s@!!CONFIG_CACHE_ENDIAN!!@config.cache.endian@g;
+		s@!!CONFIG_CACHE_SOURCE!!@config.cache.source@g;
+		s@!!CONFIG_CACHE_VERSION!!@config.cache.version@g;
+		s@!!CONFIG_CACHE_SOURCE_LIST!!@config.cache.source.list@g;
+		s@!!CONFIG_CACHE_PWD!!@config.cache.pwd@g;
+		s@!!LANG_SUPPRESS!!@$lang_suppress@g;
+		s@!!OBJS_C!!@$OBJS_C@g;
+		s@!!OBJS_CPP!!@$OBJS_CPP@g;
+		s@!!OBJS_MM!!@$OBJS_MM@g;
+		s@!!OBJS_RC!!@$OBJS_RC@g;
+		s@!!SRCS!!@$SRCS@g;
+		s@!!OS!!@$os@g;
+		s@!!CONFIGURE_FILES!!@$CONFIGURE_FILES@g;
+		s@!!REVISION!!@$revision@g;
+		s@!!AWK!!@$awk@g;
+		s@!!GCC295!!@$gcc295@g;
+		s@!!DISTCC!!@$distcc@g;
 	"
 
 	if [ "$icon_theme_dir" != "" ]; then
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!ICON_THEME_DIR!!~$prefix_dir/$icon_theme_dir~g;
+			s@!!ICON_THEME_DIR!!@$prefix_dir/$icon_theme_dir@g;
 		"
 	else
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!ICON_THEME_DIR!!~~g;
+			s@!!ICON_THEME_DIR!!@@g;
 		"
 	fi
 
 	if [ "$man_dir" != "" ]; then
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!MAN_DIR!!~$prefix_dir/$man_dir~g;
+			s@!!MAN_DIR!!@$prefix_dir/$man_dir@g;
 		"
 	else
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!MAN_DIR!!~~g;
+			s@!!MAN_DIR!!@@g;
 		"
 	fi
 
 	if [ "$menu_dir" != "" ]; then
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!MENU_DIR!!~$prefix_dir/$menu_dir~g;
+			s@!!MENU_DIR!!@$prefix_dir/$menu_dir@g;
 		"
 	else
 		SRC_REPLACE="$SRC_REPLACE
-			s~!!MENU_DIR!!~~g;
+			s@!!MENU_DIR!!@@g;
 		"
 	fi
 }
 
 generate_menu_item() {
 	MENU_REPLACE="
-		s~!!TTD!!~$TTD~g;
-		s~!!MENU_GROUP!!~$menu_group~g;
-		s~!!MENU_NAME!!~$menu_name~g
+		s@!!TTD!!@$TTD@g;
+		s@!!MENU_GROUP!!@$menu_group@g;
+		s@!!MENU_NAME!!@$menu_name@g
 	"
 	log 1 "Generating menu item..."
 	mkdir -p media
diff --git a/configure b/configure
index 64cac16e40..b34d85e589 100755
--- a/configure
+++ b/configure
@@ -37,7 +37,7 @@ if [ "$1" = "--reconfig" ] || [ "$1" = "--reconfigure" ]; then
 		exit 1
 	fi
 	# Make sure we don't lock config.cache
-	cat config.cache | sed 's~\\ ~\\\\ ~g' > cache.tmp
+	cat config.cache | sed 's@\\ @\\\\ @g' > cache.tmp
 	sh cache.tmp
 	rm -f cache.tmp
 	exit $?
@@ -59,7 +59,7 @@ STRGEN="strgen$EXE"
 ENDIAN_CHECK="endian_check$EXE"
 
 if [ -z "$sort" ]; then
-	PIPE_SORT="sed s~a~a~"
+	PIPE_SORT="sed s@a@a@"
 else
 	PIPE_SORT="$sort"
 fi
@@ -125,7 +125,7 @@ SRCS="`    echo \"$SRCS\" | $awk ' { ORS = " " } { print $0; }'`"
 
 # In makefiles, we always use -u for sort
 if [ -z "$sort" ]; then
-	sort="sed s~a~a~"
+	sort="sed s@a@a@"
 else
 	sort="$sort -u"
 fi
diff --git a/findversion.sh b/findversion.sh
index d2f0f7f1ee..f9ddd1bcb8 100755
--- a/findversion.sh
+++ b/findversion.sh
@@ -86,8 +86,8 @@ elif [ -d "$ROOT_DIR/.git" ]; then
 	fi
 	HASH=`LC_ALL=C git rev-parse --verify HEAD 2>/dev/null`
 	REV="g`echo $HASH | cut -c1-8`"
-	BRANCH=`git branch|grep '[*]' | sed 's~\* ~~;s~^master$~~'`
-	REV_NR=`LC_ALL=C git log --pretty=format:%s "$SRC_DIR" | grep "^(svn r[0-9]*)" | head -n 1 | sed "s~.*(svn r\([0-9]*\)).*~\1~"`
+	BRANCH=`git branch|grep '[*]' | sed 's@\* @@;s@^master$@@'`
+	REV_NR=`LC_ALL=C git log --pretty=format:%s "$SRC_DIR" | grep "^(svn r[0-9]*)" | head -n 1 | sed "s@.*(svn r\([0-9]*\)).*@\1@"`
 elif [ -d "$ROOT_DIR/.hg" ]; then
 	# We are a hg checkout
 	if [ -n "`hg status \"$SRC_DIR\" | grep -v '^?'`" ]; then
@@ -95,8 +95,8 @@ elif [ -d "$ROOT_DIR/.hg" ]; then
 	fi
 	HASH=`LC_ALL=C hg parents 2>/dev/null | head -n 1 | cut -d: -f3`
 	REV="h`echo $HASH | cut -c1-8`"
-	BRANCH=`hg branch | sed 's~^default$~~'`
-	REV_NR=`LC_ALL=C hg log -r $HASH:0 -k "svn" -l 1 --template "{desc}\n" "$SRC_DIR" | grep "^(svn r[0-9]*)" | head -n 1 | sed "s~.*(svn r\([0-9]*\)).*~\1~"`
+	BRANCH=`hg branch | sed 's@^default$@@'`
+	REV_NR=`LC_ALL=C hg log -r $HASH:0 -k "svn" -l 1 --template "{desc}\n" "$SRC_DIR" | grep "^(svn r[0-9]*)" | head -n 1 | sed "s@.*(svn r\([0-9]*\)).*@\1@"`
 else
 	# We don't know
 	MODIFIED="1"
diff --git a/projects/determineversion.vbs b/projects/determineversion.vbs
index bcc68456c2..1a9fd4a68a 100755
--- a/projects/determineversion.vbs
+++ b/projects/determineversion.vbs
@@ -16,10 +16,10 @@ End Sub
 
 Sub UpdateFile(modified, revision, version, cur_date, filename)
 	FSO.CopyFile filename & ".in", filename
-	FindReplaceInFile filename, "@@MODIFIED@@", modified
-	FindReplaceInFile filename, "@@REVISION@@", revision
-	FindReplaceInFile filename, "@@VERSION@@", version
-	FindReplaceInFile filename, "@@DATE@@", cur_date
+	FindReplaceInFile filename, "!!MODIFIED!!", modified
+	FindReplaceInFile filename, "!!REVISION!!", revision
+	FindReplaceInFile filename, "!!VERSION!!", version
+	FindReplaceInFile filename, "!!DATE!!", cur_date
 End Sub
 
 Sub UpdateFiles(version)
diff --git a/src/ai/api/ai_rail.cpp b/src/ai/api/ai_rail.cpp
index 7719d55762..b067b09040 100644
--- a/src/ai/api/ai_rail.cpp
+++ b/src/ai/api/ai_rail.cpp
@@ -203,6 +203,7 @@
 	if (IsRailWaypointTile(tile)) return ::GetRailWaypointBits(tile);
 	if (IsRailStationTile(tile)) return ::TrackToTrackBits(::GetRailStationTrack(tile));
 	if (IsLevelCrossingTile(tile)) return ::GetCrossingRailBits(tile);
+	if (IsRailDepotTile(tile)) return ::TRACK_BIT_NONE;
 	return ::GetTrackBits(tile);
 }
 
diff --git a/src/ai/api/ai_rail.hpp b/src/ai/api/ai_rail.hpp
index 0044d56a9e..867d72a5da 100644
--- a/src/ai/api/ai_rail.hpp
+++ b/src/ai/api/ai_rail.hpp
@@ -293,6 +293,7 @@ public:
 
 	/**
 	 * Get all RailTracks on the given tile.
+	 * @note A depot has no railtracks.
 	 * @param tile The tile to check.
 	 * @pre IsRailTile(tile).
 	 * @return A bitmask of RailTrack with all RailTracks on the tile.
diff --git a/src/company_cmd.cpp b/src/company_cmd.cpp
index e8d3040c1b..f9daab2fe6 100644
--- a/src/company_cmd.cpp
+++ b/src/company_cmd.cpp
@@ -445,6 +445,12 @@ Company *DoStartupNewCompany(bool is_ai)
 	c->inaugurated_year = _cur_year;
 	RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
 
+	/* Settings for non-ai companies are copied from the client settings later. */
+	if (is_ai) {
+		c->engine_renew_money = 100000;
+		c->engine_renew_months = 6;
+	}
+
 	GeneratePresidentName(c);
 
 	InvalidateWindow(WC_GRAPH_LEGEND, 0);
diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index 816ea513b9..3179edbfdf 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -255,7 +255,7 @@ static uint32 HouseGetVariable(const ResolverObject *object, byte variable, byte
 		case 0x40: return (IsTileType(tile, MP_HOUSE) ? GetHouseBuildingStage(tile) : 0) | TileHash2Bit(TileX(tile), TileY(tile)) << 2;
 
 		/* Building age. */
-		case 0x41: return GetHouseAge(tile);
+		case 0x41: return IsTileType(tile, MP_HOUSE) ? GetHouseAge(tile) : 0;
 
 		/* Town zone */
 		case 0x42: return GetTownRadiusGroup(town, tile);
diff --git a/src/ottdres.rc.in b/src/ottdres.rc.in
index 4652a51738..4a2dead450 100644
--- a/src/ottdres.rc.in
+++ b/src/ottdres.rc.in
@@ -64,8 +64,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 0,7,0,@@REVISION@@
- PRODUCTVERSION 0,7,0,@@REVISION@@
+ FILEVERSION 0,7,0,!!REVISION!!
+ PRODUCTVERSION 0,7,0,!!REVISION!!
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -83,14 +83,14 @@ BEGIN
             VALUE "Comments", "This program is licensed under the GNU General Public License.\0"
             VALUE "CompanyName", "OpenTTD Development Team\0"
             VALUE "FileDescription", "OpenTTD\0"
-            VALUE "FileVersion", "Development @@VERSION@@\0"
+            VALUE "FileVersion", "Development !!VERSION!!\0"
             VALUE "InternalName", "openttd\0"
             VALUE "LegalCopyright", "Copyright \xA9 OpenTTD Developers 2002-2009. All Rights Reserved.\0"
             VALUE "LegalTrademarks", "\0"
             VALUE "OriginalFilename", "openttd.exe\0"
             VALUE "PrivateBuild", "\0"
             VALUE "ProductName", "OpenTTD\0"
-            VALUE "ProductVersion", "Development @@VERSION@@\0"
+            VALUE "ProductVersion", "Development !!VERSION!!\0"
             VALUE "SpecialBuild", "-\0"
         END
     END
diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
index e8db60414d..81e651dfb9 100644
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -321,6 +321,8 @@ CommandCost CmdBuildSingleRail(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 		case MP_RAILWAY:
 			if (!CheckTileOwnership(tile)) return CMD_ERROR;
 
+			if (!IsPlainRailTile(tile)) return CMD_ERROR;
+
 			if (!IsCompatibleRail(GetRailType(tile), railtype)) return_cmd_error(STR_1001_IMPOSSIBLE_TRACK_COMBINATION);
 
 			if (!CheckTrackCombination(tile, trackbit, flags) ||
@@ -554,6 +556,8 @@ CommandCost CmdRemoveSingleRail(TileIndex tile, DoCommandFlag flags, uint32 p1,
  */
 bool FloodHalftile(TileIndex t)
 {
+	assert(IsPlainRailTile(t));
+
 	bool flooded = false;
 	if (GetRailGroundType(t) == RAIL_GROUND_WATER) return flooded;
 
@@ -1043,7 +1047,7 @@ static CommandCost CmdSignalTrackHelper(TileIndex tile, DoCommandFlag flags, uin
 	end_tile = p1;
 	if (signal_density == 0 || signal_density > 20) return CMD_ERROR;
 
-	if (!IsTileType(tile, MP_RAILWAY)) return CMD_ERROR;
+	if (!IsTileType(tile, MP_RAILWAY) || !IsPlainRailTile(tile)) return CMD_ERROR;
 
 	/* for vertical/horizontal tracks, double the given signals density
 	 * since the original amount will be too dense (shorter tracks) */
@@ -1169,6 +1173,7 @@ CommandCost CmdRemoveSingleSignal(TileIndex tile, DoCommandFlag flags, uint32 p1
 
 	if (!ValParamTrackOrientation(track) ||
 			!IsTileType(tile, MP_RAILWAY) ||
+			!IsPlainRailTile(tile) ||
 			!HasTrack(tile, track) ||
 			!EnsureNoTrainOnTrack(tile, track) ||
 			!HasSignalOnTrack(tile, track)) {
@@ -2175,7 +2180,7 @@ static void TileLoop_Track(TileIndex tile)
 							(rail & TRACK_BIT_X)
 						)) {
 					TileIndex n = tile + TileDiffXY(0, -1);
-					TrackBits nrail = GetTrackBits(n);
+					TrackBits nrail = (IsTileType(n, MP_RAILWAY) && IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
 
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
@@ -2190,7 +2195,7 @@ static void TileLoop_Track(TileIndex tile)
 							(rail & TRACK_BIT_X)
 						)) {
 					TileIndex n = tile + TileDiffXY(0, 1);
-					TrackBits nrail = GetTrackBits(n);
+					TrackBits nrail = (IsTileType(n, MP_RAILWAY) && IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
 
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
@@ -2206,7 +2211,7 @@ static void TileLoop_Track(TileIndex tile)
 							(rail & TRACK_BIT_Y)
 						)) {
 					TileIndex n = tile + TileDiffXY(-1, 0);
-					TrackBits nrail = GetTrackBits(n);
+					TrackBits nrail = (IsTileType(n, MP_RAILWAY) && IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
 
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
@@ -2221,7 +2226,7 @@ static void TileLoop_Track(TileIndex tile)
 							(rail & TRACK_BIT_Y)
 						)) {
 					TileIndex n = tile + TileDiffXY(1, 0);
-					TrackBits nrail = GetTrackBits(n);
+					TrackBits nrail = (IsTileType(n, MP_RAILWAY) && IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
 
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
diff --git a/src/rail_map.h b/src/rail_map.h
index 7c8c31f85f..195aef9f57 100644
--- a/src/rail_map.h
+++ b/src/rail_map.h
@@ -141,6 +141,7 @@ static inline void SetRailType(TileIndex t, RailType r)
  */
 static inline TrackBits GetTrackBits(TileIndex tile)
 {
+	assert(IsPlainRailTile(tile));
 	return (TrackBits)GB(_m[tile].m5, 0, 6);
 }
 
@@ -151,6 +152,7 @@ static inline TrackBits GetTrackBits(TileIndex tile)
  */
 static inline void SetTrackBits(TileIndex t, TrackBits b)
 {
+	assert(IsPlainRailTile(t));
 	SB(_m[t].m5, 0, 6, b);
 }
 
diff --git a/src/rev.cpp.in b/src/rev.cpp.in
index bae5c6085b..0edb98bb7b 100644
--- a/src/rev.cpp.in
+++ b/src/rev.cpp.in
@@ -20,7 +20,7 @@
  * norev000 is for non-releases that are made on systems without
  * subversion or sources that are not a checkout of subversion.
  */
-const char _openttd_revision[] = "@@VERSION@@";
+const char _openttd_revision[] = "!!VERSION!!";
 
 /**
  * Let us know if current build was modified. This detection
@@ -30,7 +30,7 @@ const char _openttd_revision[] = "@@VERSION@@";
  * (compiling from sources without any version control software)
  * and 2 is for modified revision.
  */
-const byte _openttd_revision_modified = @@MODIFIED@@;
+const byte _openttd_revision_modified = !!MODIFIED!!;
 
 /**
  * The NewGRF revision of OTTD:
@@ -45,11 +45,11 @@ const byte _openttd_revision_modified = @@MODIFIED@@;
  * final release will always have a lower version number than the released
  * version, thus making comparisions on specific revisions easy.
  */
-const uint32 _openttd_newgrf_version = 0 << 28 | 7 << 24 | 0 << 20 | 0 << 19 | (@@REVISION@@ & ((1 << 19) - 1));
+const uint32 _openttd_newgrf_version = 0 << 28 | 7 << 24 | 0 << 20 | 0 << 19 | (!!REVISION!! & ((1 << 19) - 1));
 
 #ifdef __MORPHOS__
 /**
  * Variable used by MorphOS to show the version.
  */
-extern const char morphos_versions_tag[] = "$VER: OpenTTD @@VERSION@@ (@@DATE@@) OpenTTD Team [MorphOS, PowerPC]";
+extern const char morphos_versions_tag[] = "$VER: OpenTTD !!VERSION!! (!!DATE!!) OpenTTD Team [MorphOS, PowerPC]";
 #endif
diff --git a/src/road.cpp b/src/road.cpp
index 01f777d23a..597098a2e9 100644
--- a/src/road.cpp
+++ b/src/road.cpp
@@ -18,7 +18,7 @@
 bool IsPossibleCrossing(const TileIndex tile, Axis ax)
 {
 	return (IsTileType(tile, MP_RAILWAY) &&
-		!HasSignals(tile) &&
+		GetRailTileType(tile) == RAIL_TILE_NORMAL &&
 		GetTrackBits(tile) == (ax == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X) &&
 		GetFoundationSlope(tile, NULL) == SLOPE_FLAT);
 }
diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
index 7b34560f4a..fe363c23a0 100644
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -321,6 +321,7 @@ static CommandCost RemoveRoad(TileIndex tile, DoCommandFlag flags, RoadBits piec
 			if (rt == ROADTYPE_ROAD && HasTileRoadType(tile, ROADTYPE_TRAM) && (flags & DC_EXEC || crossing_check)) return CMD_ERROR;
 
 			if (flags & DC_EXEC) {
+				Track railtrack = GetCrossingRailTrack(tile);
 				RoadTypes rts = GetRoadTypes(tile) & ComplementRoadTypes(RoadTypeToRoadTypes(rt));
 				if (rts == ROADTYPES_NONE) {
 					TrackBits tracks = GetCrossingRailBits(tile);
@@ -332,7 +333,7 @@ static CommandCost RemoveRoad(TileIndex tile, DoCommandFlag flags, RoadBits piec
 					/* If we ever get HWAY and it is possible without road then we will need to promote ownership and invalidate town index here, too */
 				}
 				MarkTileDirtyByTile(tile);
-				YapfNotifyTrackLayoutChange(tile, FindFirstTrack(GetTrackBits(tile)));
+				YapfNotifyTrackLayoutChange(tile, railtrack);
 			}
 			return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_road * 2);
 		}
@@ -549,9 +550,10 @@ CommandCost CmdBuildRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
 			if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
 
 			if (flags & DC_EXEC) {
-				YapfNotifyTrackLayoutChange(tile, FindFirstTrack(GetTrackBits(tile)));
+				Track railtrack = AxisToTrack(OtherAxis(roaddir));
+				YapfNotifyTrackLayoutChange(tile, railtrack);
 				/* Always add road to the roadtypes (can't draw without it) */
-				bool reserved = HasBit(GetTrackReservation(tile), AxisToTrack(OtherAxis(roaddir)));
+				bool reserved = HasBit(GetTrackReservation(tile), railtrack);
 				MakeRoadCrossing(tile, _current_company, _current_company, GetTileOwner(tile), roaddir, GetRailType(tile), RoadTypeToRoadTypes(rt) | ROADTYPES_ROAD, p2);
 				SetCrossingReservation(tile, reserved);
 				UpdateLevelCrossing(tile, false);
diff --git a/src/saveload/order_sl.cpp b/src/saveload/order_sl.cpp
index 0ec506f1d5..ac87c75e63 100644
--- a/src/saveload/order_sl.cpp
+++ b/src/saveload/order_sl.cpp
@@ -138,8 +138,8 @@ static void Load_ORDR()
 
 			free(orders);
 		} else if (CheckSavegameVersionOldStyle(5, 2)) {
-			len /= sizeof(uint16);
-			uint16 *orders = MallocT<uint16>(len + 1);
+			len /= sizeof(uint32);
+			uint32 *orders = MallocT<uint32>(len + 1);
 
 			SlArray(orders, len, SLE_UINT32);
 
diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp
index de616ba4e3..af3f9d5ac5 100644
--- a/src/toolbar_gui.cpp
+++ b/src/toolbar_gui.cpp
@@ -784,8 +784,8 @@ static void ToolbarScenDateBackward(Window *w)
 		w->HandleButtonClick(TBSE_DATEBACKWARD);
 		w->SetDirty();
 
-		_settings_newgame.game_creation.starting_year = Clamp(_settings_newgame.game_creation.starting_year - 1, MIN_YEAR, MAX_YEAR);
-		SetDate(ConvertYMDToDate(_settings_newgame.game_creation.starting_year, 0, 1));
+		_settings_game.game_creation.starting_year = Clamp(_settings_game.game_creation.starting_year - 1, MIN_YEAR, MAX_YEAR);
+		SetDate(ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1));
 	}
 	_left_button_clicked = false;
 }
@@ -797,8 +797,8 @@ static void ToolbarScenDateForward(Window *w)
 		w->HandleButtonClick(TBSE_DATEFORWARD);
 		w->SetDirty();
 
-		_settings_newgame.game_creation.starting_year = Clamp(_settings_newgame.game_creation.starting_year + 1, MIN_YEAR, MAX_YEAR);
-		SetDate(ConvertYMDToDate(_settings_newgame.game_creation.starting_year, 0, 1));
+		_settings_game.game_creation.starting_year = Clamp(_settings_game.game_creation.starting_year + 1, MIN_YEAR, MAX_YEAR);
+		SetDate(ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1));
 	}
 	_left_button_clicked = false;
 }
@@ -1233,8 +1233,8 @@ public:
 
 	virtual void OnPaint()
 	{
-		this->SetWidgetDisabledState(TBSE_DATEBACKWARD, _settings_newgame.game_creation.starting_year <= MIN_YEAR);
-		this->SetWidgetDisabledState(TBSE_DATEFORWARD, _settings_newgame.game_creation.starting_year >= MAX_YEAR);
+		this->SetWidgetDisabledState(TBSE_DATEBACKWARD, _settings_game.game_creation.starting_year <= MIN_YEAR);
+		this->SetWidgetDisabledState(TBSE_DATEFORWARD, _settings_game.game_creation.starting_year >= MAX_YEAR);
 
 		/* Draw brown-red toolbar bg. */
 		GfxFillRect(0, 0, this->width - 1, this->height - 1, 0xB2);
@@ -1242,7 +1242,7 @@ public:
 
 		this->DrawWidgets();
 
-		SetDParam(0, ConvertYMDToDate(_settings_newgame.game_creation.starting_year, 0, 1));
+		SetDParam(0, ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1));
 		DrawStringCenteredTruncated(this->widget[TBSE_DATEBACKWARD].right, this->widget[TBSE_DATEFORWARD].left, 6, STR_00AF, TC_FROMSTRING);
 
 		/* We hide this panel when the toolbar space gets too small */
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index e31b4a2214..6853aec1cc 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -2383,6 +2383,15 @@ static bool CheckTrainStayInDepot(Vehicle *v)
 		seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
 	}
 
+	/* We are leaving a depot, but have to go to the exact same one; re-enter */
+	if (v->tile == v->dest_tile) {
+		/* We need to have a reservation for this to work. */
+		if (GetDepotWaypointReservation(v->tile)) return true;
+		SetDepotWaypointReservation(v->tile, true);
+		VehicleEnterDepot(v);
+		return true;
+	}
+
 	/* Only leave when we can reserve a path to our destination. */
 	if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
 		/* No path and no force proceed. */
diff --git a/src/yapf/yapf_costrail.hpp b/src/yapf/yapf_costrail.hpp
index 81ef6a82a0..b4792db872 100644
--- a/src/yapf/yapf_costrail.hpp
+++ b/src/yapf/yapf_costrail.hpp
@@ -54,6 +54,10 @@ protected:
 	};
 
 protected:
+	/**
+	 * @note maximum cost doesn't work with caching enabled
+	 * @todo fix maximum cost failing with caching (e.g. FS#2900)
+	 */
 	int           m_max_cost;
 	CBlobT<int>   m_sig_look_ahead_costs;
 	bool          m_disable_cache;
@@ -111,7 +115,7 @@ public:
 
 	FORCEINLINE int SwitchCost(TileIndex tile1, TileIndex tile2, DiagDirection exitdir)
 	{
-		if (IsTileType(tile1, MP_RAILWAY) && IsTileType(tile2, MP_RAILWAY)) {
+		if (IsTileType(tile1, MP_RAILWAY) && IsTileType(tile2, MP_RAILWAY) && IsPlainRailTile(tile1) && IsPlainRailTile(tile2)) {
 			bool t1 = KillFirstBit(GetTrackBits(tile1) & DiagdirReachesTracks(ReverseDiagDir(exitdir))) != TRACK_BIT_NONE;
 			bool t2 = KillFirstBit(GetTrackBits(tile2) & DiagdirReachesTracks(exitdir)) != TRACK_BIT_NONE;
 			if (t1 && t2) return Yapf().PfGetSettings().rail_doubleslip_penalty;
diff --git a/src/yapf/yapf_rail.cpp b/src/yapf/yapf_rail.cpp
index 884b82ca27..d65c143785 100644
--- a/src/yapf/yapf_rail.cpp
+++ b/src/yapf/yapf_rail.cpp
@@ -198,6 +198,16 @@ public:
 	static bool stFindNearestDepotTwoWay(const Vehicle *v, TileIndex t1, Trackdir td1, TileIndex t2, Trackdir td2, int max_distance, int reverse_penalty, TileIndex *depot_tile, bool *reversed)
 	{
 		Tpf pf1;
+		/*
+		 * With caching enabled it simply cannot get a reliable result when you
+		 * have limited the distance a train may travel. This means that the
+		 * cached result does not match uncached result in all cases and that
+		 * causes desyncs. So disable caching when finding for a depot that is
+		 * nearby. This only happens with automatic servicing of vehicles,
+		 * so it will only impact performance when you do not manually set
+		 * depot orders and you do not disable automatic servicing.
+		 */
+		if (max_distance != 0) pf1.DisableCache(true);
 		bool result1 = pf1.FindNearestDepotTwoWay(v, t1, td1, t2, td2, max_distance, reverse_penalty, depot_tile, reversed);
 
 #if DEBUG_YAPF_CACHE