On Tue, 20 Mar 2007, der Mouse wrote:
> >How-To-Repeat:
> 	env PATH=.:$PATH build.sh ... build
> 	(or "distribution", or anything else that implies "build").

Does this patch look OK?

Index: build.sh
===================================================================
--- build.sh	19 Feb 2007 14:20:11 -0000	1.162
+++ build.sh	22 Mar 2007 19:04:19 -0000
@@ -69,6 +69,11 @@
 	${runcmd} echo "===> $@" | tee -a "${results}"
 }
 
+warning()
+{
+	statusmsg "Warning: $@"
+}
+
 # Find a program in the PATH
 find_in_PATH()
 {
@@ -793,6 +798,23 @@
 	export MAKEFLAGS MACHINE MACHINE_ARCH
 }
 
+sanitycheck()
+{
+	# If the PATH contains any non-absolute components (including,
+	# but not limited to, "." or ""), then complain.  This is fatal
+	# if expert mode is not in effect.
+	#
+	case ":${PATH}:/" in
+	*:[!/]*)
+		if ${do_expertmode}; then
+			warning "PATH contains non-absolute components"
+		else
+			bomb "PATH must not contain non-absolute components"
+		fi
+		;;
+	esac
+}
+
 rebuildmake()
 {
 	# Test make source file timestamps against installed ${toolprefix}make
@@ -1142,6 +1164,8 @@
 	_args=$@
 	parseoptions "$@"
 
+	sanitycheck
+
 	build_start=$(date)
 	statusmsg "${progname} command: $0 $@"
 	statusmsg "${progname} started: ${build_start}"