diff -uNrp utkernel_source.orig/etc/mkfuncfiles utkernel_source/etc/mkfuncfiles
--- utkernel_source.orig/etc/mkfuncfiles	Fri May 10 10:31:28 2013
+++ utkernel_source/etc/mkfuncfiles	Sat Aug 24 05:40:28 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/etc/mkiflib utkernel_source/etc/mkiflib
--- utkernel_source.orig/etc/mkiflib	Fri May 10 10:31:28 2013
+++ utkernel_source/etc/mkiflib	Sat Aug 24 05:40:08 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/etc/mktdsvc utkernel_source/etc/mktdsvc
--- utkernel_source.orig/etc/mktdsvc	Fri May 10 10:31:28 2013
+++ utkernel_source/etc/mktdsvc	Sat Aug 24 05:40:01 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/etc/mktksvc utkernel_source/etc/mktksvc
--- utkernel_source.orig/etc/mktksvc	Fri May 10 10:31:29 2013
+++ utkernel_source/etc/mktksvc	Sat Aug 24 05:39:43 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/etc/platform utkernel_source/etc/platform
--- utkernel_source.orig/etc/platform	Fri May 10 10:31:29 2013
+++ utkernel_source/etc/platform	Sat Aug 24 05:41:49 2013
@@ -20,6 +20,7 @@ case $os in
   SunOS)	platform=$os-`uname -p` ;;
   Linux)	platform=$os-`uname -m` ;;
   FreeBSD)	platform=$os-`uname -p` ;;
+  OpenBSD)	platform=$os-`uname -m` ;;
   CYGWIN*)	platform="Cygwin-`uname -m`" ;;
   *)		platform=unknown ;;
 esac
diff -uNrp utkernel_source.orig/etc/sysdepend/app_mb9af312k/makerules.sysdepend utkernel_source/etc/sysdepend/app_mb9af312k/makerules.sysdepend
--- utkernel_source.orig/etc/sysdepend/app_mb9af312k/makerules.sysdepend	Fri May 10 10:31:30 2013
+++ utkernel_source/etc/sysdepend/app_mb9af312k/makerules.sysdepend	Sun Aug 25 06:30:32 2013
@@ -56,6 +56,9 @@ endif
 ifneq ($(filter Linux-%, $(CROSS_ARCH)), )
   PATH := $(PATH):/usr/local/bin:/bin:/usr/bin
 endif
+ifneq ($(filter OpenBSD-%, $(CROSS_ARCH)), )
+  PATH := $(PATH):/usr/local/bin:/bin:/usr/bin
+endif
 ifneq ($(filter Cygwin-%, $(CROSS_ARCH)), )
   PATH := $(PATH):/usr/local/bin:/bin:/usr/bin
 endif
@@ -80,7 +83,7 @@ ASFLAGS +=
 LDFLAGS +=
 
 ### C  ###
-CC := $(GNUARM_2)/bin/gcc4arm
+CC := $(GNUARM_2)/bin/$(TOOL_PREFIX)gcc
 OUTPUT_OPTION = -o $@
 ifeq ($(mode), debug)
   CFLAGS += -g
@@ -117,7 +120,7 @@ LINK.c = $(CC) $(TARGET_ARCH) $(CFLAGS) $(CPPFLAGS) $(
 	$(CC) $(TARGET_ARCH) $(CFLAGS) $(CPPFLAGS) -E $< $(OUTPUT_OPTION)
 
 ### C++ ###
-CXX := $(GNUARM_2)/bin/gcc4arm
+CXX := $(GNUARM_2)/bin/$(TOOL_PREFIX)gcc
 CXXFLAGS = $(CFLAGS)
 
 COMPILE.cc = $(CXX) $(TARGET_ARCH) $(CXXFLAGS) $(CPPFLAGS) -c
@@ -133,7 +136,7 @@ LINK.cc = $(CXX) $(TARGET_ARCH) $(CXXFLAGS) $(CPPFLAGS
 	$(CXX) $(TARGET_ARCH) $(CXXFLAGS) $(CPPFLAGS) -E $< $(OUTPUT_OPTION)
 
 ### asm ###
-AS = $(GNUARM_2)/bin/as
+AS = $(GNUARM_2)/bin/$(TOOL_PREFIX)as
 ifeq ($(mode), debug)
   ASFLAGS += -g
 else
@@ -156,7 +159,7 @@ COMPILE.s = $(AS) $(ASFLAGS.s)
 	$(CC) $(TARGET_ARCH) $(ASFLAGS) $(CPPFLAGS) -E $< $(OUTPUT_OPTION)
 
 ### linker ###
-LD = $(GNUARM_2)/bin/ld
+LD = $(GNUARM_2)/bin/$(TOOL_PREFIX)ld
 ifeq ($(mode), debug)
   LDFLAGS += $(LIBDIR:%=-L%)
 else
@@ -204,15 +207,15 @@ LOCATE.o = $(CC) $(TARGET_ARCH) $(LDFLAGS) -nostdlib $
 	$(RM) _$@
 
 ### library ###
-AR = $(GNUARM_2)/bin/ar
+AR = $(GNUARM_2)/bin/$(TOOL_PREFIX)ar
 ARFLAGS = rv
-RANLIB = $(GNUARM_2)/bin/ranlib
+RANLIB = $(GNUARM_2)/bin/$(TOOL_PREFIX)ranlib
 
 (%): %
 	$(AR) $(ARFLAGS) $@ $%
 
 ### create name list ###
-NM = $(GNUARM_2)/bin/nm
+NM = $(GNUARM_2)/bin/$(TOOL_PREFIX)nm
 NMFLAGS = -n
 
 %.map: %
@@ -252,11 +255,10 @@ DATABOX = $(DB) $(DBFLAGS)
 
 ### other ###
 ifndef CPP
-  CPP = $(GNU_BD)/bin/arm_2-unknown-tkernel-cpp
+  CPP = $(GNUARM_2)/bin/$(TOOL_PREFIX)cpp
 endif
-STRIP = $(GNUARM_2)/bin/strip --strip-unneeded
+STRIP = $(GNUARM_2)/bin/$(TOOL_PREFIX)strip --strip-unneeded
 
-#OBJCOPY = $(GNU_BD)/bin/arm_2-unknown-tkernel-objcopy
-OBJCOPY = $(GNU_BD)/bin/arm-none-eabi-objcopy
+OBJCOPY = $(GNUARM_2)/bin/$(TOOL_PREFIX)objcopy
 OUTPUT_SREC = -O srec --srec-forceS3 --srec-len 32
 OUTPUT_BIN = -O binary
diff -uNrp utkernel_source.orig/lib/libsvc/build/mb9af312k/makeifex.pl utkernel_source/lib/libsvc/build/mb9af312k/makeifex.pl
--- utkernel_source.orig/lib/libsvc/build/mb9af312k/makeifex.pl	Fri May 10 10:32:27 2013
+++ utkernel_source/lib/libsvc/build/mb9af312k/makeifex.pl	Sun Aug 25 06:52:35 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/lib/libsvc/build/mb9af312k/makeiftd.pl utkernel_source/lib/libsvc/build/mb9af312k/makeiftd.pl
--- utkernel_source.orig/lib/libsvc/build/mb9af312k/makeiftd.pl	Fri May 10 10:32:27 2013
+++ utkernel_source/lib/libsvc/build/mb9af312k/makeiftd.pl	Sun Aug 25 06:52:29 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel
diff -uNrp utkernel_source.orig/lib/libsvc/build/mb9af312k/makeiftk.pl utkernel_source/lib/libsvc/build/mb9af312k/makeiftk.pl
--- utkernel_source.orig/lib/libsvc/build/mb9af312k/makeiftk.pl	Fri May 10 10:32:27 2013
+++ utkernel_source/lib/libsvc/build/mb9af312k/makeiftk.pl	Sun Aug 25 06:52:23 2013
@@ -1,4 +1,4 @@
-#! /usr/local/bin/perl
+#! /usr/bin/env perl
 #
 # ----------------------------------------------------------------------
 #     micro T-Kernel