Index: Makefile
===================================================================
--- Makefile	(revision 228e490270cec3d6a6de666f61839f0d9ed5f193)
+++ Makefile	(revision eb221e54c89be67027a646c54011ff67bf6d1eaa)
@@ -28,4 +28,5 @@
 
 CSCOPE = cscope
+CHECK = tools/check.sh
 CONFIG = tools/config.py
 AUTOTOOL = tools/autotool.py
@@ -41,5 +42,5 @@
 CONFIG_HEADER = config.h
 
-.PHONY: all precheck cscope autotool config_auto config_default config distclean clean
+.PHONY: all precheck cscope autotool config_auto config_default config distclean clean check
 
 all: $(COMMON_MAKEFILE) $(COMMON_HEADER) $(CONFIG_MAKEFILE) $(CONFIG_HEADER)
@@ -54,4 +55,12 @@
 cscope:
 	find kernel boot uspace -regex '^.*\.[chsS]$$' | xargs $(CSCOPE) -b -k -u -f$(CSCOPE).out
+
+# Pre-integration build check
+check: $(CHECK)
+ifdef JOBS 
+	$(CHECK) -j $(JOBS)
+else
+	$(CHECK)
+endif
 
 $(COMMON_MAKEFILE): autotool
Index: tools/check.sh
===================================================================
--- tools/check.sh	(revision eb221e54c89be67027a646c54011ff67bf6d1eaa)
+++ tools/check.sh	(revision eb221e54c89be67027a646c54011ff67bf6d1eaa)
@@ -0,0 +1,89 @@
+#! /bin/bash
+
+#
+# Copyright (c) 2010 Jakub Jermar 
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+if [ $1" " == "-h " ];
+then
+	echo "Perform pre-integration hands-off build of all profiles."
+	echo
+	echo "Syntax:"
+	echo " $0 [-h] [args...]"
+	echo
+	echo " -h        Print this help."
+	echo " args...   All other args are passed to make (e.g. -j 6)"
+	echo
+
+	exit
+fi
+
+FAILED=""
+PASSED=""
+PROFILES=""
+DIRS=`find defaults/ -name Makefile.config | sed 's/^defaults\/\(.*\)\/Makefile.config/\1/' | sort`
+
+for D in $DIRS;
+do
+	for H in $DIRS;
+	do
+		if [ `echo $H | grep "^$D\/.*"`x != "x"  ];
+		then
+			continue 2 
+		fi
+	done
+	PROFILES="$PROFILES $D"
+done
+
+echo ">>> Going to build the following profiles:"
+echo $PROFILES
+
+for P in $PROFILES;
+do
+	echo -n ">>>> Building $P... "
+	( make distclean && make PROFILE=$P HANDS_OFF=y $1 ) >>/dev/null 2>>/dev/null
+	if [ $? -ne 0 ];
+	then
+		FAILED="$FAILED $P"
+		echo "failed."
+	else
+		PASSED="$PASSED $P"
+		echo "ok."
+	fi
+done
+
+echo ">>> Done."
+echo
+
+echo ">>> The following profiles passed:"
+echo $PASSED
+echo
+
+echo ">>> The following profiles failed:"
+echo $FAILED
+echo
+