Installation Instructions
*************************

For Debian based GNU / Linux
============================
The following commands build qt5 and polarssl which are dependencies of the Software.
For build dependencies please refer to the Qt documentation 
( qtbase/src/plugins/platforms/xcb/README ). Polarssl needs cmake and build-essentials.

    export YOURPREFIX=<Prefix of your choice (default /usr)>
    export PATH=$YOURPREFIX/bin:$PATH

    curl https://download.qt-project.org/official_releases/qt/5.3/5.3.0/single/qt-everywhere-opensource-src-5.3.0.tar.xz.mirrorlist | grep SHA-256

e6f47e69a5ce707452dd4bad1fd1919201a71e88be1b06afe1d302a3935daf1f

    http://qt-mirror.dannhauer.de/official_releases/qt/5.3/5.3.0/single/qt-everywhere-opensource-src-5.3.0.tar.xz

    sha256sum qt-everywhere-opensource-src-5.3.0.tar.xz

    tar -xvmlf qt-everywhere-opensource-src-5.3.0.tar.xz

    cd qt-everywhere-opensource-src-5.3.0/qtbase

build dependencies have to to be installed at this point,
see ../qtbase/src/plugins/platforms/xcb/README

    ./configure --prefix=$YOURPREFIX \
    -opensource \
    -release  -nomake tests  -nomake examples  -confirm-license \
    -static -no-cups -no-nis -no-icu -no-fontconfig \
    -no-directfb -no-opengl -no-kms -no-eglfs -no-egl -no-openssl -no-glib
    nice make -j8
    make install

    cd qttools/src/linguist
    qmake
    nice make -j8
    make install -k

    curl -O https://polarssl.org/download/polarssl-1.3.7-gpl.tgz
    6beef0281160bf07fefefd6b412dd1ce4c39261cf5300835aef442253f0400e5  polarssl-1.3.7-gpl.tgz

    tar -xf polarssl-1.3.7-gpl.tgz
    cd polarssl-1.3.7
    mkdir build
    cd build
    cmake .. -DCMAKE_C_FLAGS=-fpic -DCMAKE_INSTALL_PREFIX=$YOURPREFIX
    make && make test && make install

To compile the software you can use plain cmake. An out of source build is
highly suggested. For build options see CMakeList.txt

    hg clone https://wald.intevation.org/hg/trustbridge/
    cd trustbridge
    mkdir build-linux
    cd build-linux
    cmake .. -DCMAKE_PREFIX_PATH=$YOURPREFIX


For Microsoft Windows
=====================
The Windows variant can be cross compiled on Debian based GNU / Linux systems.
The minimum requirement is debian stable.

Dependencies on the Host system:
    git autoconf automake bash bison bzip2 \
    cmake flex gettext git g++ intltool \
    libffi-dev libtool libltdl-dev libssl-dev \
    libxml-parser-perl make openssl patch perl \
    pkg-config scons sed unzip wget xz-utils autopoint \
    gperf

Build the windows binaries:
    MXEPATH=$YOURPREFIX/win
    git clone https://github.com/mxe/mxe.git $MXEPATH
    cd $MXEPATH
    echo "MXE_TARGETS := i686-w64-mingw32.static" > settings.mk
    make polarssl
    make qtbase

Workaround Qt CMake Bugs:
    find $MXEPATH/usr/i686-w64-mingw32.static/qt5/lib/cmake -name \*.cmake | \
        xargs sed -i 's/\/\([a-z]*\)\.lib/\/lib\1\.a/g'
    sed -i 's/^_qt5gui_find_extra_libs.*//' \
        $MXEPATH/usr/i686-w64-mingw32.static/qt5/lib/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake

Make an NSS build available in the MXE prefix:
    # TODO -> Document how to build NSS,..
    cp -r <magic nss folder> $MXEPATH/usr/i686-w64-mingw32.static/

Compile the software:
    cd trustbridge
    mkdir build-windows
    cd build-windows
    MXETARGET=$MXEPATH/usr/i686-w64-mingw32.static/
    cmake .. \
        -DCMAKE_PREFIX_PATH="$MXETARGET/qt5;$MXETARGET;" \
        -DNSS_INCLUDEDIR="/nss-3.12.7/include;/nss-3.12.7/public/nss" \
        -DNSS_LIBDIR="/nss-3.12.7/lib" \
        -DCMAKE_TOOLCHAIN_FILE="$MXETARGET/share/cmake/mxe-conf.cmake" \
        -DCMAKE_VERBOSE_MAKEFILE=True