diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index fc85734..e9936db 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -20,8 +20,8 @@
 # Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
 #
 
-CROSSGCC_DATE="February 23th, 2015"
-CROSSGCC_VERSION="1.26"
+CROSSGCC_DATE="March 8th, 2015"
+CROSSGCC_VERSION="1.27"
 
 # default settings
 TARGETDIR=`pwd`/xgcc
@@ -29,28 +29,28 @@
 DESTDIR=
 
 # version numbers
-GMP_VERSION=5.1.2
+GMP_VERSION=6.0.0
 MPFR_VERSION=3.1.2
 MPC_VERSION=1.0.3
 LIBELF_VERSION=0.8.13
-GCC_VERSION=4.8.3
+GCC_VERSION=4.9.2
 GCC_AUTOCONF_VERSION=2.69
-BINUTILS_VERSION=2.23.2
-GDB_VERSION=7.6
-IASL_VERSION=20140114
-PYTHON_VERSION=3.3.2
+BINUTILS_VERSION=2.25
+GDB_VERSION=7.9
+IASL_VERSION=20150204
+PYTHON_VERSION=3.4.3
 EXPAT_VERSION=2.1.0
 
 # archive locations
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
+GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}a.tar.bz2"
 MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
 MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
 LIBELF_ARCHIVE="http://www.mr511.de/software/libelf-${LIBELF_VERSION}.tar.gz"
 GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
 BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.bz2"
-GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.bz2"
-IASL_ARCHIVE="http://www.acpica.org/sites/acpica/files/acpica-unix-${IASL_VERSION}.tar.gz"
-PYTHON_ARCHIVE="http://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.bz2"
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
+IASL_ARCHIVE="https://acpica.org/sites/acpica/files/acpica-unix-${IASL_VERSION}.tar.gz"
+PYTHON_ARCHIVE="http://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz"
 EXPAT_ARCHIVE="http://downloads.sourceforge.net/sourceforge/expat/expat-${EXPAT_VERSION}.tar.gz"
 
 GMP_DIR="gmp-${GMP_VERSION}"
@@ -300,6 +300,7 @@
 		suffix=`echo $archive | sed 's,.*\.,,'`
 		test "$suffix" = "gz" && FLAGS=zxf
 		test "$suffix" = "bz2" && FLAGS=jxf
+		test "$suffix" = "xz" && FLAGS="--xz -xf"
 		test "$suffix" = "lzma" && FLAGS="--lzma -xf"
 		$TAR $FLAGS tarballs/`basename $archive`
 		for patch in patches/${dir}_*.patch; do