Multiple changes to xbps-src and shutils:

* Added XBPS_FETCH_CMD to xbps-src.conf, this will be used to fetch
  distfiles. Please note that it will be copied to the chroot, so
  it should be statically linked or with only libc required.

* Removed libtool_func.sh and associated vars, it's unneeded currently.

* Added keep_empty_dirs, keep_libtool_archives and nostrip. By default
  all empty dirs and libtool archives are removed, and executables and
  libraries stripped, respectively. One can use set the var in a build
  template to change the behaviour.

* Explain in README what are the requirements to build XBPS.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20091017005836-uifiof32ndy0wmd8

bin/xbps-src/main.sh

@@ -29,7 +29,6 @@ trap "echo && exit 1" INT QUIT
 
 : ${progname:=$(basename $0)}
 : ${fakeroot_cmd:=fakeroot}
-: ${fetch_cmd:=wget}
 : ${xbps_machine:=$(uname -m)}
 
 usage()
@@ -118,8 +117,7 @@ set_defvars()
 #
 check_config_vars()
 {
-	local cffound=
-	local f=
+	local cffound f
 
 	if [ -z "$config_file_specified" ]; then
 		config_file_paths="$XBPS_CONFIG_FILE ./etc/xbps-src.conf"