Index: README
==================================================================
--- README
+++ README
@@ -12,5 +12,16 @@
 	2. Create a Tclkit for Tcl from CVS HEAD:
 		$ ./kitcreator cvs_HEAD
 
 	3. To clean up post-build:
 		$ ./kitcreator clean
+
+Environment variables:
+	1. MAKE
+		Specifies the tool you wish to be called to build targets
+		from a Makefile.  This script is generally more well tested
+		with GNU Make.
+
+	2. PATCH
+		Specifies the tool you wish to be called to apply unified
+		diff patches.  This script is generally more well tested with
+		GNU Patch. 

Index: mk4tcl/build.sh
==================================================================
--- mk4tcl/build.sh
+++ mk4tcl/build.sh
@@ -46,11 +46,11 @@
 		if [ ! -f "${patch}" ]; then
 			continue
 		fi
 
 		echo "Applying: ${patch}"
-		patch -p1 < "${patch}"
+		${PATCH:-patch} -p1 < "${patch}"
 	done
 
 	cd "${BUILDDIR}/unix" || exit 1
 
 	# Build static libraries for linking against Tclkit

Index: tclvfs/build.sh
==================================================================
--- tclvfs/build.sh
+++ tclvfs/build.sh
@@ -47,11 +47,11 @@
 		if [ ! -f "${patch}" ]; then
 			continue
 		fi
 
 		echo "Applying: ${patch}"
-		patch -p1 < "${patch}"
+		${PATCH:-patch} -p1 < "${patch}"
 	done                                                                                                                               
 
 	cp generic/vfs.c .
 
 	# Build static version