Index: itcl/build.sh
==================================================================
--- itcl/build.sh
+++ itcl/build.sh
@@ -49,13 +49,15 @@
 ) || exit 0
 
 if [ ! -f "${SRC}" ]; then
 	mkdir 'src' >/dev/null 2>/dev/null
 
-	rm -f "${SRC}.tmp"
-	wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
-	mv "${SRC}.tmp" "${SRC}"
+	if [ ! -d 'buildsrc' ]; then
+		rm -f "${SRC}.tmp"
+		wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
+		mv "${SRC}.tmp" "${SRC}"
+	fi
 fi
 
 (
 	cd 'build' || exit 1
 

Index: mk4tcl/build.sh
==================================================================
--- mk4tcl/build.sh
+++ mk4tcl/build.sh
@@ -30,13 +30,15 @@
 export TCL_VERSION
 
 if [ ! -f "${SRC}" ]; then
 	mkdir 'src' >/dev/null 2>/dev/null
 
-	rm -f "${SRC}.tmp"
-	wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
-	mv "${SRC}.tmp" "${SRC}"
+	if [ ! -d 'buildsrc' ]; then
+		rm -f "${SRC}.tmp"
+		wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
+		mv "${SRC}.tmp" "${SRC}"
+	fi
 fi
 
 (
 	cd 'build' || exit 1
 

Index: tclvfs/build.sh
==================================================================
--- tclvfs/build.sh
+++ tclvfs/build.sh
@@ -30,13 +30,15 @@
 export TCL_VERSION
 
 if [ ! -f "${SRC}" ]; then
 	mkdir 'src' >/dev/null 2>/dev/null
 
-	rm -f "${SRC}.tmp"
-	wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
-	mv "${SRC}.tmp" "${SRC}"
+	if [ ! -d 'buildsrc' ]; then
+		rm -f "${SRC}.tmp"
+		wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
+		mv "${SRC}.tmp" "${SRC}"
+	fi
 fi
 
 (
 	cd 'build' || exit 1
 

Index: thread/build.sh
==================================================================
--- thread/build.sh
+++ thread/build.sh
@@ -48,13 +48,15 @@
 ) || exit 0
 
 if [ ! -f "${SRC}" ]; then
 	mkdir 'src' >/dev/null 2>/dev/null
 
-	rm -f "${SRC}.tmp"
-	wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
-	mv "${SRC}.tmp" "${SRC}"
+	if [ ! -d 'buildsrc' ]; then
+		rm -f "${SRC}.tmp"
+		wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
+		mv "${SRC}.tmp" "${SRC}"
+	fi
 fi
 
 (
 	cd 'build' || exit 1
 

Index: zlib/build.sh
==================================================================
--- zlib/build.sh
+++ zlib/build.sh
@@ -23,13 +23,15 @@
 mkdir 'build' 'out' 'inst' || exit 1
 
 if [ ! -f "${SRC}" ]; then
 	mkdir 'src' >/dev/null 2>/dev/null
 
-	rm -f "${SRC}.tmp"
-	wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
-	mv "${SRC}.tmp" "${SRC}"
+	if [ ! -d 'buildsrc' ]; then
+		rm -f "${SRC}.tmp"
+		wget -O "${SRC}.tmp" "${SRCURL}" || exit 1
+		mv "${SRC}.tmp" "${SRC}"
+	fi
 fi
 
 (
 	cd 'build' || exit 1