gcc: can be built in a chroot now.

srcpkgs/gcc/template

@@ -47,9 +47,25 @@ Add_dependency build cloog-ppl-devel
 Add_dependency build libelf-devel
 Add_dependency build binutils
 
+if [ -n "$BOOTSTRAP_PKG_REBUILD" ]; then
+	Add_dependency build coreutils
+	Add_dependency build gawk
+	Add_dependency build sed
+	Add_dependency build texinfo
+	Add_dependency build gettext
+fi
 
 do_build()
 {
+	local BPATH
+
+	if [ -n "$BOOTSTRAP_PKG_REBUILD" ]; then
+		BPATH="/usr/local/sbin:/bin:/usr/bin:/sbin:/usr/sbin"
+		BPATH="$BPATH:/usr/local/bin:/tools/bin"
+	else
+		BPATH=$PATH
+	fi
+
 	# As specified in the LFS book, disable installing libiberty.
 	sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in
 	# "Add" ppl-0.11 compatibility
@@ -57,7 +73,7 @@ do_build()
 	# Do not run fixincludes
 	sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in
 
-	./configure --prefix=/usr \
+	PATH=$BPATH ./configure --prefix=/usr \
 		--enable-clocale=gnu --disable-bootstrap \
 		--enable-threads=posix --enable-__cxa_atexit --disable-multilib \
 		--enable-languages=c,c++,objc,obj-c++,fortran,go,lto --enable-tls \