Index: tcl/build.sh
==================================================================
--- tcl/build.sh
+++ tcl/build.sh
@@ -15,11 +15,12 @@
 SRCURL="http://prdownloads.sourceforge.net/tcl/tcl${TCLVERS}-src.tar.gz"
 BUILDDIR="$(pwd)/build/tcl${TCLVERS}"
 OUTDIR="$(pwd)/out"
 INSTDIR="$(pwd)/inst"
 PATCHSCRIPTDIR="$(pwd)/patchscripts"
-export SRC SRCURL BUILDDIR OUTDIR INSTDIR PATCHSCRIPTDIR
+PATCHDIR="$(pwd)/patches"
+export SRC SRCURL BUILDDIR OUTDIR INSTDIR PATCHSCRIPTDIR PATCHDIR
 
 rm -rf 'build' 'out' 'inst'
 mkdir 'build' 'out' 'inst' || exit 1
 
 if [ ! -f "${SRC}" ]; then
@@ -53,10 +54,21 @@
 	else
 		cp -rp ../buildsrc/* './'
 	fi
 
 	cd "${BUILDDIR}" || exit 1
+
+	# Apply patches if needed
+	for patch in "${PATCHDIR}/all"/tcl-${TCLVERS}-*.diff "${PATCHDIR}/${TCLVERS}"/tcl-${TCLVERS}-*.diff; do
+		if [ ! -f "${patch}" ]; then
+			continue
+		fi
+                
+		echo "Applying: ${patch}"
+		${PATCH:-patch} -p1 < "${patch}"
+	done
+
 
 	# Apply patch scripts if needed
 	for patchscript in "${PATCHSCRIPTDIR}"/*.sh; do
 		if [ -f "${patchscript}" ]; then
 			echo "Running patch script: ${patchscript}"

ADDED   tcl/patches/8.4.19/tcl-8.4.19-win32castingfailure-1rsk.diff
Index: tcl/patches/8.4.19/tcl-8.4.19-win32castingfailure-1rsk.diff
==================================================================
--- /dev/null
+++ tcl/patches/8.4.19/tcl-8.4.19-win32castingfailure-1rsk.diff
@@ -0,0 +1,24 @@
+diff -uNr tcl8.4.19.orig/win/tclWinDde.c tcl8.4.19-1rsk/win/tclWinDde.c
+--- tcl8.4.19.orig/win/tclWinDde.c	2006-04-05 15:50:46.000000000 -0500
++++ tcl8.4.19-1rsk/win/tclWinDde.c	2010-10-12 10:40:23.000000000 -0500
+@@ -1308,7 +1308,7 @@
+ 	    }
+ 
+ 	    objc -= (async + 3);
+-	    ((Tcl_Obj **) objv) += (async + 3);
++	    objv += (async + 3);
+ 
+             /*
+ 	     * See if the target interpreter is local.  If so, execute
+diff -uNr tcl8.4.19.orig/win/tclWinReg.c tcl8.4.19-1rsk/win/tclWinReg.c
+--- tcl8.4.19.orig/win/tclWinReg.c	2007-05-15 11:08:22.000000000 -0500
++++ tcl8.4.19-1rsk/win/tclWinReg.c	2010-10-12 10:40:20.000000000 -0500
+@@ -790,7 +790,7 @@
+ 		    Tcl_NewStringObj(Tcl_DStringValue(&buf),
+ 			    Tcl_DStringLength(&buf)));
+ 	    if (regWinProcs->useWide) {
+-		while (*((Tcl_UniChar *)p)++ != 0) {}
++		while ((*((Tcl_UniChar *)p))++ != 0) {}
+ 	    } else {
+ 		while (*p++ != '\0') {}
+ 	    }