diff --git a/dist/tools/toolchains/build_x86.sh b/dist/tools/toolchains/build_x86.sh
deleted file mode 100755
index 3e417b38b4..0000000000
--- a/dist/tools/toolchains/build_x86.sh
+++ /dev/null
@@ -1,376 +0,0 @@
-#!/usr/bin/env bash
-
-# directory to download source files and store intermediates
-[[ -z $TARGET ]] && TARGET=i586-none-elf
-[[ -z $TMP_DIR ]] && TMP_DIR=/var/tmp/RIOT-toolchain-${USER}
-[[ -z $BUILDDIR ]] && BUILDDIR=${TMP_DIR}/${TARGET}
-[[ -z $PREFIX ]] && PREFIX=${PWD}/toolchain/${TARGET}
-[[ -z $MAKE_THREADS ]] && MAKE_THREADS=
-PATCHDIR=$(readlink -e "$(dirname $0)/patches")
-
-NEWLIB_VER=2.2.0.20150623
-NEWLIB_ARCHIVE=newlib-${NEWLIB_VER}.tar.gz
-NEWLIB_MD5=5cf6cd9ded91bca10c9f0a22a9da8e02
-NEWLIB_CONFIGURE_FLAGS=(
-    --target=${TARGET}
-    --prefix=${PREFIX}
-    --with-gmp=${PREFIX}
-    --with-mpfr=${PREFIX}
-    --with-mpc=${PREFIX}
-    --enable-interwork
-    --enable-multilib
-
-    --enable-target-optspace
-    --disable-newlib-supplied-syscalls
-    --disable-newlib-reent-small
-    --enable-newlib-io-long-long
-    --enable-newlib-io-float
-    --enable-newlib-io-pos-args
-    --enable-newlib-io-c99-formats
-    --enable-newlib-multithread
-)
-NEWLIB_PATCHES=(
-newlib-2.2.0.20150623-RIOT-i586-none-elf.patch
-)
-NEWLIB_TARGET_CFLAGS=(
-    -DREENTRANT_SYSCALLS_PROVIDED
-    -DMALLOC_PROVIDED
-    -DSIGNAL_PROVIDED
-    -DPREFER_SIZE_OVER_SPEED
-
-    -ggdb3
-    -Os
-    -fomit-frame-pointer
-    -ffunction-sections
-    -fdata-sections
-)
-
-GCC_VER=4.8.5
-GCC_ARCHIVE=gcc-${GCC_VER}.tar.bz2
-GCC_MD5=80d2c2982a3392bb0b89673ff136e223
-GCC_CONFIGURE_FLAGS=(
-    --target=${TARGET}
-    --prefix=${PREFIX}
-    --with-gmp=${PREFIX}
-    --with-mpfr=${PREFIX}
-    --with-mpc=${PREFIX}
-
-    --enable-interwork
-    --enable-multilib
-    --enable-languages="c,c++"
-    --with-newlib
-    --disable-libssp
-    --with-headers=${BUILDDIR}/newlib-${NEWLIB_VER}/newlib/libc/include
-    --enable-obsolete
-    --enable-target-optspace
-    --disable-nls
-)
-
-BINUTILS_VER=2.25
-BINUTILS_ARCHIVE=binutils-${BINUTILS_VER}.tar.bz2
-BINUTILS_MD5=d9f3303f802a5b6b0bb73a335ab89d66
-BINUTILS_CONFIGURE_FLAGS=(
-    --prefix=${PREFIX}
-
-    --enable-interwork
-    --enable-multilib
-    --disable-nls
-)
-
-GDB_VER=7.9.1
-GDB_ARCHIVE=gdb-${GDB_VER}.tar.xz
-GDB_MD5=35374c77a70884eb430c97061053a36e
-GDB_CONFIGURE_FLAGS=(
-    --target=${TARGET}
-    --prefix=${PREFIX}
-    --with-gmp=${PREFIX}
-    --with-mpfr=${PREFIX}
-    --with-mpc=${PREFIX}
-
-    --enable-interwork
-    --enable-multilib
-    --disable-nls
-)
-
-GMP_VER=5.1.3
-GMP_ARCHIVE=gmp-${GMP_VER}.tar.xz
-GMP_MD5=e5fe367801ff067b923d1e6a126448aa
-GMP_CONFIGURE_FLAGS=(
-    --prefix=${PREFIX}
-
-    --enable-cxx
-    --disable-nls
-)
-
-MPFR_VER=3.1.2
-MPFR_ARCHIVE=mpfr-${MPFR_VER}.tar.xz
-MPFR_MD5=e3d203d188b8fe60bb6578dd3152e05c
-MPFR_CONFIGURE_FLAGS=(
-    --prefix=${PREFIX}
-    --with-gmp=${PREFIX}
-
-    --disable-nls
-)
-
-MPC_VER=1.0.2
-MPC_ARCHIVE=mpc-${MPC_VER}.tar.gz
-MPC_MD5=68fadff3358fb3e7976c7a398a0af4c3
-MPC_CONFIGURE_FLAGS=(
-    --prefix=${PREFIX}
-    --with-gmp=${PREFIX}
-    --with-mpfr=${PREFIX}
-
-    --disable-nls
-)
-
-DOWNLOADER=wget
-DOWNLOADER_OPTS="-nv -c"
-
-SPACE_NEEDED=3264960
-
-build_binutils() {
-    cd ${BUILDDIR}
-    echo
-    [[ -e .binutils_built ]] && return
-
-    local TARGETS=(${TARGET} i386-efi-pe)
-    for i in 0 1; do
-        echo "Building binutils (${BINUTILS_VER}) for ${TARGETS[$i]} ..."
-
-        rm -rf binutils-${TARGETS[$i]}-build &&
-        mkdir -p binutils-${TARGETS[$i]}-build &&
-        cd binutils-${TARGETS[$i]}-build &&
-
-        ../binutils-${BINUTILS_VER}/configure "${BINUTILS_CONFIGURE_FLAGS[@]}" --target=${TARGETS[$i]} --enable-targets=${TARGETS[$i]},${TARGETS[1-$i]} &&
-        make ${MAKE_THREADS} all &&
-        make install &&
-        cd ${BUILDDIR} ||
-        return $?
-    done
-
-    date -uIns > .binutils_built
-}
-
-build_gcc() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building gcc (${GCC_VER}) ..."
-    [[ -e .gcc_built ]] && return
-
-    rm -rf gcc-build && mkdir -p gcc-build && cd gcc-build &&
-    ../gcc-${GCC_VER}/configure "${GCC_CONFIGURE_FLAGS[@]}" &&
-    make ${MAKE_THREADS} all &&
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .gcc_built
-}
-
-build_newlib() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building newlib (${NEWLIB_VER}) ..."
-    [[ -e .newlib_built ]] && return
-
-    rm -rf newlib-build && mkdir -p newlib-build && cd newlib-build &&
-
-    CFLAGS="${NEWLIB_TARGET_CFLAGS[*]}" \
-    CXXFLAGS="${NEWLIB_TARGET_CFLAGS[*]}" \
-    CFLAGS_FOR_TARGET="${NEWLIB_TARGET_CFLAGS[*]}" \
-    CXXFLAGS_FOR_TARGET="${NEWLIB_TARGET_CFLAGS[*]}" \
-    ../newlib-${NEWLIB_VER}/configure "${NEWLIB_CONFIGURE_FLAGS[@]}" &&
-    sed -i ./Makefile -e '/C\(XX\)\?FLAGS_FOR_TARGET = -g /d' &&
-
-    make ${MAKE_THREADS} all &&
-
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .newlib_built
-}
-
-build_gdb() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building gdb (${GDB_VER}) ..."
-    [[ -e .gdb_built ]] && return
-
-    rm -rf gdb-build && mkdir -p gdb-build && cd gdb-build &&
-    ../gdb-${GDB_VER}/configure "${GDB_CONFIGURE_FLAGS[@]}" &&
-    make ${MAKE_THREADS} all CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0" &&
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .gdb_built
-}
-
-build_gmp() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building gmp (${GMP_VER}) ..."
-    [[ -e .gmp_built ]] && return
-
-    rm -rf gmp-build && mkdir -p gmp-build && cd gmp-build &&
-    ../gmp-${GMP_VER}/configure "${GMP_CONFIGURE_FLAGS[@]}" &&
-    make ${MAKE_THREADS} all &&
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .gmp_built
-}
-
-build_mpfr() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building mpfr (${MPFR_VER}) ..."
-    [[ -e .mpfr_built ]] && return
-
-    rm -rf mpfr-build && mkdir -p mpfr-build && cd mpfr-build &&
-    ../mpfr-${MPFR_VER}/configure "${MPFR_CONFIGURE_FLAGS[@]}" &&
-    make ${MAKE_THREADS} all &&
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .mpfr_built
-}
-
-build_mpc() {
-    cd ${BUILDDIR}
-    echo
-    echo "Building mpc (${MPC_VER}) ..."
-    [[ -e .mpc_built ]] && return
-
-    rm -rf mpc-build && mkdir -p mpc-build && cd mpc-build &&
-    ../mpc-${MPC_VER}/configure "${MPC_CONFIGURE_FLAGS[@]}" &&
-    make ${MAKE_THREADS} all &&
-    make install &&
-
-    cd ${BUILDDIR} &&
-    date -uIns > .mpc_built
-}
-
-clean() {
-    echo
-    echo "Cleaning up..."
-    for F in binutils gcc newlib gdb gmp mpfr mpc; do
-        rm -rf ./.${F}_extracted ./.${F}_built ./${F}_build || return $?
-    done
-}
-
-export PATH=$PATH:${PREFIX}/bin
-
-download() {
-    echo
-    echo "Downloading TAR files."
-
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/binutils ${BINUTILS_ARCHIVE} ${BINUTILS_MD5} &&
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/gcc/gcc-${GCC_VER} ${GCC_ARCHIVE} ${GCC_MD5} &&
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/gdb ${GDB_ARCHIVE} ${GDB_MD5} &&
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/gmp ${GMP_ARCHIVE} ${GMP_MD5} &&
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/mpfr ${MPFR_ARCHIVE} ${MPFR_MD5} &&
-    download_file ftp://ftp.cs.tu-berlin.de/pub/gnu/mpc ${MPC_ARCHIVE} ${MPC_MD5} &&
-    download_file ftp://sources.redhat.com/pub/newlib ${NEWLIB_ARCHIVE} ${NEWLIB_MD5}
-}
-
-extract() {
-    echo
-    echo "Extracting TAR files."
-
-    if [[ ! -x ./binutils-${BINUTILS_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${BINUTILS_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./gcc-${GCC_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${GCC_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./gdb-${GDB_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${GDB_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./gmp-${GMP_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${GMP_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./mpfr-${MPFR_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${MPFR_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./mpc-${MPC_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${MPC_ARCHIVE} || return $?
-    fi
-    if [[ ! -x ./newlib-${NEWLIB_VER}/configure ]]; then
-        tar axf ${TMP_DIR}/${NEWLIB_ARCHIVE} &&
-        for (( I=0; I < ${#NEWLIB_PATCHES[@]}; I+=1 )); do
-            echo "Applying Newlib patch ${NEWLIB_PATCHES[$I]}"
-            for (( P=0; P < 4; P+=1 )); do
-                patch -p${P} --ignore-whitespace --dry-run -f < "${PATCHDIR}/${NEWLIB_PATCHES[$I]}" 2>&1 > /dev/null || continue
-                patch -p${P} --ignore-whitespace -f < "${PATCHDIR}/${NEWLIB_PATCHES[$I]}" || return $?
-                break
-            done
-        done
-    fi
-}
-
-download_file() {
-    echo "Downloading ${1}/${2}..."
-    cd ${TMP_DIR} &&
-    ${DOWNLOADER} ${DOWNLOADER_OPTS} $1/$2 &&
-    echo -n "Checking MD5 of " &&
-    echo "${3}  ${2}" | md5sum -c - &&
-    cd ${BUILDDIR}
-}
-
-check_space() {
-    echo
-    echo "Checking disk space in ${TMP_DIR}"
-
-    FREETMP=$(df ${BUILDDIR} | awk '{ if (NR == 2) print $4}')
-    if [[ $FREETMP -lt $SPACE_NEEDED ]]; then
-        echo "Not enough available space in ${TMP_DIR}."
-        echo "Minimum ${SPACE_NEEDED} free bytes required."
-        return 1
-    fi
-}
-
-all() {
-    echo
-    echo "Starting in ${BUILDDIR}. Installing to ${PREFIX}."
-
-    check_space &&
-    download &&
-    extract &&
-    build_binutils &&
-    build_gmp &&
-    build_mpfr &&
-    build_mpc &&
-    build_gcc &&
-    build_newlib &&
-    build_gdb &&
-
-    echo &&
-    echo 'Success!' &&
-    echo "Insert \"export PATH=${PREFIX}/bin:\$PATH\" to your .bashrc"
-}
-
-usage() {
-    echo "usage: ${0} [all | download | extract | clean | build_[binutils|gcc|newlib|gdb|gmp|mpfr|mpc]]"
-    echo "example: ${0} all"
-    echo ""
-    echo "Builds a(n) \"${TARGET}\" toolchain,"
-    echo "installs into \"${PREFIX}\", and"
-    echo "uses \"${TMP_DIR}\" as temp."
-    echo ""
-    echo "Use PREFIX=... and TMP_DIR=... to change these directories."
-    echo "Use TARGET=... to change the target (affects PREFIX)."
-    echo ""
-    echo "Run like \"MAKE_THREADS=-j$(nproc) ${0} all\" to speed up on multicore systems."
-}
-
-if [[ -z $1 ]]; then
-    usage
-    exit 1
-fi
-
-mkdir -p ${PREFIX} &&
-mkdir -p ${TMP_DIR} &&
-mkdir -p ${BUILDDIR} &&
-cd ${BUILDDIR} &&
-for arg; do
-    ${arg} || exit $?
-done
diff --git a/dist/tools/toolchains/patches/newlib-2.1.0-RIOT-i586-none-elf.patch b/dist/tools/toolchains/patches/newlib-2.1.0-RIOT-i586-none-elf.patch
deleted file mode 100644
index ba16def9e5..0000000000
Binary files a/dist/tools/toolchains/patches/newlib-2.1.0-RIOT-i586-none-elf.patch and /dev/null differ
diff --git a/dist/tools/toolchains/patches/newlib-2.2.0.20150623-RIOT-i586-none-elf.patch b/dist/tools/toolchains/patches/newlib-2.2.0.20150623-RIOT-i586-none-elf.patch
deleted file mode 100644
index 4500d66b43..0000000000
Binary files a/dist/tools/toolchains/patches/newlib-2.2.0.20150623-RIOT-i586-none-elf.patch and /dev/null differ