diff --git a/docker-builder-data/build/script/common/helpers.sh b/docker-builder-data/build/script/common/helpers.sh
index 4a947ce..855d0c4 100644
--- a/docker-builder-data/build/script/common/helpers.sh
+++ b/docker-builder-data/build/script/common/helpers.sh
@@ -157,6 +157,10 @@ copy_system_lib() {
     cp --remove-destination /lib/i386-linux-gnu/$SRC_NAME* "$DST_PATH" &> /dev/null
     cp --remove-destination /usr/lib/x86_64-linux-gnu/$SRC_NAME* "$DST_PATH" &> /dev/null
     cp --remove-destination /usr/lib/i386-linux-gnu/$SRC_NAME* "$DST_PATH" &> /dev/null
+    cp --remove-destination /usr/local/lib/$SRC_NAME* "$DST_PATH" &> /dev/null
+    cp --remove-destination /usr/local/lib64/$SRC_NAME* "$DST_PATH" &> /dev/null
+    cp --remove-destination /usr/local/lib/x86_64-linux-gnu/$SRC_NAME* "$DST_PATH" &> /dev/null
+    cp --remove-destination /usr/local/lib/i386-linux-gnu/$SRC_NAME* "$DST_PATH" &> /dev/null
     if ! (ls "$DST_PATH/$SRC_NAME"* &> /dev/null); then
         echo "$SRC_NAME not found in system libraries"
         return 1
@@ -215,7 +219,8 @@ copy_system_license() {
             for MASK in "/usr/share/doc/$SUB_NAME/copyright" \
                         "/usr/share/licenses/$SUB_NAME" \
                         "/usr/share/licenses/$SUB_NAME/*" \
-                        "/usr/share/doc/$SUB_NAME/*"
+                        "/usr/share/doc/$SUB_NAME/*" \
+                        "/usr/local/share/doc/$SUB_NAME/copyright"
             do
                 local FOUND=
                 ls -d1 $MASK 2>/dev/null | while read FILE; do
diff --git a/docker-builder-data/build/script/toolchain/none.sh b/docker-builder-data/build/script/toolchain/none.sh
index 4018e1d..85efdc0 100755
--- a/docker-builder-data/build/script/toolchain/none.sh
+++ b/docker-builder-data/build/script/toolchain/none.sh
@@ -7,7 +7,11 @@ vars_clear "TC_"
 export TC_HOST=""
 
 export TC_PATH="$INITIAL_PATH"
-export TC_LD_LIBRARY_PATH="$INITIAL_LD_LIBRARY_PATH"
+export TC_LD_LIBRARY_PATH="/usr/local/lib:/usr/local/lib64:$INITIAL_LD_LIBRARY_PATH"
+export TC_LIBRARY_PATH="/usr/local/lib:/usr/local/lib64:$INITIAL_LIBRARY_PATH"
+
+export TC_CC=`which cc`
+export TC_CXX=`which c++`
 
 export TC_LDFLAGS="$INITIAL_LDFLAGS"
 export TC_CFLAGS="$INITIAL_CFLAGS"
diff --git a/docker/debian-7-32bit/Dockerfile b/docker/debian-7-32bit/Dockerfile
index 261925d..b9e903a 100644
--- a/docker/debian-7-32bit/Dockerfile
+++ b/docker/debian-7-32bit/Dockerfile
@@ -1,54 +1,52 @@
 FROM morevna/debian-i386:wheezy
 ARG ALL_PROXY
 
-# Update
+# set available apt sources
+COPY files/sources.list /etc/apt/sources.list
+
+# update
 RUN apt-get -yq update
 
-# Upgrade
+# upgrade
 RUN apt-get -yq upgrade
 
-# Install tools
-RUN apt-get -yq install \
-    sudo \
-    pkg-config \
-    g++ \
-    make
+# install tools
+RUN apt-get -yq install bash sudo pkg-config g++ make wget
 
-# qt deps see: http://doc.qt.io/qt-5/linux-requirements.html
-RUN apt-get -yq install \
-    libxrender-dev \
-    libfontconfig1-dev \
-    libfreetype6-dev \
-    libxi-dev \
-    libxext-dev \
-    libx11-dev \
-    libx11-xcb-dev \
-    libsm-dev \
-    libice-dev \
-    libglib2.0-dev \
-    libglu1-mesa-dev
-    
-# other deps
-
-RUN apt-get -yq install liblzma-dev
-RUN apt-get -yq install liblzo2-dev
-RUN apt-get -yq install libudev-dev
-RUN apt-get -yq install libfuse-dev
-RUN apt-get -yq install libdb-dev
-RUN apt-get -yq install libasound2-dev
+# upgrade gcc
+RUN apt-get -yq install libgmp-dev libmpfr-dev libmpc-dev
+COPY files/install-gcc.sh /
+RUN /install-gcc.sh
 
-RUN apt-get -yq install gfortran
+# install tools
 RUN apt-get -yq install csh
 RUN apt-get -yq install xsltproc
 RUN apt-get -yq install m4
 RUN apt-get -yq install automake
 RUN apt-get -yq install intltool
 RUN apt-get -yq install libtool
-
 RUN apt-get -yq install git
-RUN apt-get -yq install wget
 RUN apt-get -yq install bzip2
 
+# qt deps see: http://doc.qt.io/qt-5/linux-requirements.html
+RUN apt-get -yq install libxrender-dev
+RUN apt-get -yq install libfontconfig1-dev
+RUN apt-get -yq install libfreetype6-dev
+RUN apt-get -yq install libxi-dev
+RUN apt-get -yq install libxext-dev
+RUN apt-get -yq install libx11-dev
+RUN apt-get -yq install libx11-xcb-dev
+RUN apt-get -yq install libsm-dev
+RUN apt-get -yq install libice-dev
+RUN apt-get -yq install libglu1-mesa-dev
+
+# other deps
+RUN apt-get -yq install liblzma-dev
+RUN apt-get -yq install liblzo2-dev
+RUN apt-get -yq install libudev-dev
+RUN apt-get -yq install libfuse-dev
+RUN apt-get -yq install libdb-dev
+RUN apt-get -yq install libasound2-dev
 RUN apt-get -yq install libffi-dev
 RUN apt-get -yq install libmount-dev
 RUN apt-get -yq install libbz2-dev
@@ -62,4 +60,5 @@ RUN apt-get -yq install xutils-dev
 RUN apt-get -yq install libegl1-mesa-dev
 RUN apt-get -yq install libdirectfb-dev
 
+# build dir
 RUN mkdir /build
diff --git a/docker/debian-7-32bit/files/install-gcc.sh b/docker/debian-7-32bit/files/install-gcc.sh
new file mode 100755
index 0000000..74e62c0
--- /dev/null
+++ b/docker/debian-7-32bit/files/install-gcc.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+set -e
+
+mkdir -p install-gcc
+cd install-gcc
+
+echo && echo "download and unpack" && echo
+
+GCC_SOURCES_URL="ftp://ftp.gnu.org/gnu/gcc/gcc-7.2.0/gcc-7.2.0.tar.xz"
+wget -c "$GCC_SOURCES_URL"
+tar -xf gcc-*.tar.*
+
+echo && echo "build and install" && echo
+
+mkdir -p build
+cd build
+[ -f "../configure.done" ] || ( \
+    ../gcc-*/configure --disable-multilib \
+    && touch "../configure.done")
+make -j`nproc`
+make install
+(cd /usr/local/bin && ln gcc cc)
+cd ..
+
+echo && echo "add licenses" && echo
+
+cd gcc-*
+PREFIX="/usr/local/share/doc"
+TARGET="../copyright"
+TARGET_DIRS="gcc g++ gfortran cc c++ fortran"
+echo > "$TARGET"
+for FILE in README COPYING* MAINTAINERS; do
+    echo ""                                      >> "$TARGET"
+    echo "-------------------------------------" >> "$TARGET"
+    echo "  File: $FILE"                         >> "$TARGET"
+    echo "-------------------------------------" >> "$TARGET"
+    echo ""                                      >> "$TARGET"
+    cat  "$FILE"                                 >> "$TARGET"
+done
+for TARGET_DIR in $TARGET_DIRS; do
+    mkdir -p "$PREFIX/$TARGET_DIR"
+    cp "$TARGET" "$PREFIX/$TARGET_DIR/"
+done
+cd ..
+
+cd ..
+
+echo && echo "clean" && echo
+
+rm -r install-gcc
diff --git a/docker/debian-7-32bit/files/sources.list b/docker/debian-7-32bit/files/sources.list
new file mode 100644
index 0000000..e97897c
--- /dev/null
+++ b/docker/debian-7-32bit/files/sources.list
@@ -0,0 +1,3 @@
+deb ftp://ftp.de.debian.org/debian/ wheezy main
+deb ftp://ftp.de.debian.org/debian/ wheezy-updates main
+deb http://security.debian.org/ wheezy/updates main
diff --git a/docker/debian-7-64bit/Dockerfile b/docker/debian-7-64bit/Dockerfile
index 994f88f..511c9eb 100644
--- a/docker/debian-7-64bit/Dockerfile
+++ b/docker/debian-7-64bit/Dockerfile
@@ -1,53 +1,52 @@
 FROM debian:7
 ARG ALL_PROXY
 
-# Update
+# set available apt sources
+COPY files/sources.list /etc/apt/sources.list
+
+# update
 RUN apt-get -yq update
 
-# Upgrade
+# upgrade
 RUN apt-get -yq upgrade
 
-# Install tools
-RUN apt-get -yq install \
-    sudo \
-    pkg-config \
-    g++ \
-    make
+# install tools
+RUN apt-get -yq install bash sudo pkg-config g++ make wget
 
-# qt deps see: http://doc.qt.io/qt-5/linux-requirements.html
-RUN apt-get -yq install \
-    libxrender-dev \
-    libfontconfig1-dev \
-    libfreetype6-dev \
-    libxi-dev \
-    libxext-dev \
-    libx11-dev \
-    libx11-xcb-dev \
-    libsm-dev \
-    libice-dev \
-    libglu1-mesa-dev
-    
-# other deps
-
-RUN apt-get -yq install liblzma-dev
-RUN apt-get -yq install liblzo2-dev
-RUN apt-get -yq install libudev-dev
-RUN apt-get -yq install libfuse-dev
-RUN apt-get -yq install libdb-dev
-RUN apt-get -yq install libasound2-dev
+# upgrade gcc
+RUN apt-get -yq install libgmp-dev libmpfr-dev libmpc-dev
+COPY files/install-gcc.sh /
+RUN /install-gcc.sh
 
-RUN apt-get -yq install gfortran
+# install tools
 RUN apt-get -yq install csh
 RUN apt-get -yq install xsltproc
 RUN apt-get -yq install m4
 RUN apt-get -yq install automake
 RUN apt-get -yq install intltool
 RUN apt-get -yq install libtool
-
 RUN apt-get -yq install git
-RUN apt-get -yq install wget
 RUN apt-get -yq install bzip2
 
+# qt deps see: http://doc.qt.io/qt-5/linux-requirements.html
+RUN apt-get -yq install libxrender-dev
+RUN apt-get -yq install libfontconfig1-dev
+RUN apt-get -yq install libfreetype6-dev
+RUN apt-get -yq install libxi-dev
+RUN apt-get -yq install libxext-dev
+RUN apt-get -yq install libx11-dev
+RUN apt-get -yq install libx11-xcb-dev
+RUN apt-get -yq install libsm-dev
+RUN apt-get -yq install libice-dev
+RUN apt-get -yq install libglu1-mesa-dev
+
+# other deps
+RUN apt-get -yq install liblzma-dev
+RUN apt-get -yq install liblzo2-dev
+RUN apt-get -yq install libudev-dev
+RUN apt-get -yq install libfuse-dev
+RUN apt-get -yq install libdb-dev
+RUN apt-get -yq install libasound2-dev
 RUN apt-get -yq install libffi-dev
 RUN apt-get -yq install libmount-dev
 RUN apt-get -yq install libbz2-dev
@@ -61,4 +60,5 @@ RUN apt-get -yq install xutils-dev
 RUN apt-get -yq install libegl1-mesa-dev
 RUN apt-get -yq install libdirectfb-dev
 
+# build dir
 RUN mkdir /build
diff --git a/docker/debian-7-64bit/files/install-gcc.sh b/docker/debian-7-64bit/files/install-gcc.sh
new file mode 100755
index 0000000..74e62c0
--- /dev/null
+++ b/docker/debian-7-64bit/files/install-gcc.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+set -e
+
+mkdir -p install-gcc
+cd install-gcc
+
+echo && echo "download and unpack" && echo
+
+GCC_SOURCES_URL="ftp://ftp.gnu.org/gnu/gcc/gcc-7.2.0/gcc-7.2.0.tar.xz"
+wget -c "$GCC_SOURCES_URL"
+tar -xf gcc-*.tar.*
+
+echo && echo "build and install" && echo
+
+mkdir -p build
+cd build
+[ -f "../configure.done" ] || ( \
+    ../gcc-*/configure --disable-multilib \
+    && touch "../configure.done")
+make -j`nproc`
+make install
+(cd /usr/local/bin && ln gcc cc)
+cd ..
+
+echo && echo "add licenses" && echo
+
+cd gcc-*
+PREFIX="/usr/local/share/doc"
+TARGET="../copyright"
+TARGET_DIRS="gcc g++ gfortran cc c++ fortran"
+echo > "$TARGET"
+for FILE in README COPYING* MAINTAINERS; do
+    echo ""                                      >> "$TARGET"
+    echo "-------------------------------------" >> "$TARGET"
+    echo "  File: $FILE"                         >> "$TARGET"
+    echo "-------------------------------------" >> "$TARGET"
+    echo ""                                      >> "$TARGET"
+    cat  "$FILE"                                 >> "$TARGET"
+done
+for TARGET_DIR in $TARGET_DIRS; do
+    mkdir -p "$PREFIX/$TARGET_DIR"
+    cp "$TARGET" "$PREFIX/$TARGET_DIR/"
+done
+cd ..
+
+cd ..
+
+echo && echo "clean" && echo
+
+rm -r install-gcc
diff --git a/docker/debian-7-64bit/files/sources.list b/docker/debian-7-64bit/files/sources.list
new file mode 100644
index 0000000..e97897c
--- /dev/null
+++ b/docker/debian-7-64bit/files/sources.list
@@ -0,0 +1,3 @@
+deb ftp://ftp.de.debian.org/debian/ wheezy main
+deb ftp://ftp.de.debian.org/debian/ wheezy-updates main
+deb http://security.debian.org/ wheezy/updates main