GNU=http://ftp.gnu.org/gnu

CMAKE_VERSION=2.8.3
CMAKE_URL=http://www.cmake.org/files/v2.8/cmake-$(CMAKE_VERSION).tar.gz

LIBTOOL_VERSION=2.2.10
LIBTOOL_URL=$(GNU)/libtool/libtool-$(LIBTOOL_VERSION).tar.gz

AUTOCONF_VERSION=2.68
AUTOCONF_URL=$(GNU)/autoconf/autoconf-$(AUTOCONF_VERSION).tar.bz2

AUTOMAKE_VERSION=1.11.1
AUTOMAKE_URL=$(GNU)/automake/automake-$(AUTOMAKE_VERSION).tar.gz

PKGCFG_VERSION=0.23
#PKGCFG_URL=http://downloads.videolan.org/pub/videolan/testing/contrib/pkg-config-$(PKGCFG_VERSION).tar.gz
PKGCFG_URL=http://pkgconfig.freedesktop.org/releases/pkg-config-$(PKGCFG_VERSION).tar.gz

XZ_VERSION=5.0.3
XZ_URL=http://tukaani.org/xz/xz-$(XZ_VERSION).tar.bz2