Created libc under containers/posix which now all tasks use to build.

There is a problem in the new libc that test0 now misbehaves. Going to be fixed.

containers/posix/libc/SConscript

@@ -0,0 +1,31 @@
+# -*- mode: python; coding: utf-8; -*-
+
+#  Codezero -- a microkernel for embedded systems.
+#
+#  Copyright © 2009  B Labs Ltd
+#
+#  This program is free software: you can redistribute it and/or modify it under the terms of the GNU
+#  General Public License as published by the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+#  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+#  License for more details.
+#
+#  You should have received a copy of the GNU General Public License along with this program.  If not, see
+#  <http://www.gnu.org/licenses/>.
+#
+#  Author: Russel Winder
+
+Import('environment', 'posixServicesDirectory')
+
+e = environment.Clone()
+e.Append(CPPPATH = ['include', 'include/arch'])
+
+e['CCFLAGS'] = ['-g', '-nostdlib', '-Wall', '-ffreestanding', '-std=gnu99']
+
+objects = e.StaticObject(Glob('src/*.c') + Glob('src/arch-' + environment['ARCH'] + '/*.[cS]'))
+Depends(objects, e['configFiles'])
+library = e.StaticLibrary('c', objects)
+
+Return('library')