Script to automate bootstrapping a build on any host platform. Creates

a bmake (rebuilds, if necessary) and invokes that to start the build.

build.sh

@@ -0,0 +1,125 @@
+#! /bin/sh
+#  $NetBSD: build.sh,v 1.1 2001/10/19 02:21:03 tv Exp $
+#
+# Top level build wrapper, for a system containing no tools.
+#
+# This script should run on any POSIX-compliant shell.  For systems
+# with a strange /bin/sh, "ksh" may be an ample alternative.
+#
+
+bomb () {
+	echo ""
+	echo "ERROR: $@"
+	echo "*** BUILD ABORTED ***"
+	exit 1
+}
+
+getarch () {
+	# Translate a MACHINE into a default MACHINE_ARCH.
+	case $MACHINE in
+		acorn32|cats|dnard|evbarm|hpcarm|netwinder)
+			MACHINE_ARCH=arm;;
+
+		sun2)
+			MACHINE_ARCH=m68000;;
+
+		amiga|atari|cesfic|hp300|sun3|*68k)
+			MACHINE_ARCH=m68k;;
+
+		mipsco|newsmips|sgimips)
+			MACHINE_ARCH=mipseb;;
+
+		algor|arc|cobalt|hpcmips|playstation2|pmax)
+			MACHINE_ARCH=mipsel;;
+
+		pc532)
+			MACHINE_ARCH=ns32k;;
+
+		bebox|prep|sandpoint|walnut|*ppc)
+			MACHINE_ARCH=powerpc;;
+
+		mmeye)
+			MACHINE_ARCH=sh3eb;;
+
+		dreamcast|evbsh3|hpcsh)
+			MACHINE_ARCH=sh3el;;
+
+		*)	MACHINE_ARCH=$MACHINE;;
+	esac
+}
+
+usage () {
+	echo "Usage:"
+	echo "$0 [-nr] [-m machine] [-D destdir] [-T tooldir]"
+	echo "    -m: set target MACHINE to machine"
+	echo "    -n: do not build a release (just install to DESTDIR)"
+	echo "    -r: remove TOOLDIR and DESTDIR before the build"
+	echo "    -D: set DESTDIR to destdir"
+	echo "    -T: set TOOLDIR to tooldir"
+	exit 1
+}
+
+while getopts m:nrD:T: opt; do case $opt in
+	m)	MACHINE=$OPTARG; getarch;; # getarch overrides MACHINE_ARCH
+
+	n)	buildtarget=build;;
+
+	r)	removedirs=true;;
+
+	D)	DESTDIR="$OPTARG";;
+
+	T)	TOOLDIR="$OPTARG";;
+
+	'?')	usage;;
+esac; done
+
+for var in DESTDIR TOOLDIR MACHINE; do
+	eval 'test -n "$'$var'"' || \
+		bomb "$var must be set in the environment before running build.sh"
+done
+
+# Set up environment.
+test -n "$MACHINE_ARCH" || getarch
+test -d usr.bin/make || bomb "build.sh must be run from the top source level"
+[ -d $TOOLDIR/bin ] || mkdir -p $TOOLDIR/bin || bomb "mkdir of $TOOLDIR/bin failed"
+
+# Remove the target directories.
+if ${removedirs-false}; then
+	echo "Removing DESTDIR and TOOLDIR...."
+	rm -rf $DESTDIR $TOOLDIR
+fi
+
+# Test make source file timestamps against installed bmake binary.
+if [ -x $TOOLDIR/bin/bmake ]; then
+	for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
+		if [ $f -nt $TOOLDIR/bin/bmake ]; then
+			rebuildmake=true; break
+		fi
+	done
+else
+	rebuildmake=true
+fi
+
+# Build $TOOLDIR/bin/bmake.
+if ${rebuildmake-false}; then
+	echo "Building bmake...."
+
+	# Go to a temporary directory in case building .o's happens.
+	srcdir=`pwd`
+	cd ${TMPDIR-/tmp}
+
+	${HOST_CC-cc} ${HOST_CFLAGS} -DMAKE_BOOTSTRAP \
+		-o $TOOLDIR/bin/bmake -I$srcdir/usr.bin/make \
+		$srcdir/usr.bin/make/*.c $srcdir/usr.bin/make/lst.lib/*.c
+
+	# Clean up.
+	rm -f *.o
+	cd $srcdir
+
+	# Some compilers are just *that* braindead.
+	rm -f $srcdir/usr.bin/make/*.o $srcdir/usr.bin/make/lst.lib/*.o
+fi
+
+$TOOLDIR/bin/bmake ${buildtarget-release} -m `pwd`/share/mk \
+	MKTOOLS=yes DESTDIR="$DESTDIR" TOOLDIR="$TOOLDIR" \
+	MACHINE=$MACHINE MACHINE_ARCH=$MACHINE_ARCH