Editing Cross Compiling FileZilla 3 for Windows under Ubuntu or Debian GNU/Linux

This documentation explains how to setup a build environment for [[FileZilla 3]] '''for Windows''' and how to compile it under [https://debian.org Debian] using [https://mingw-w64.org/ Mingw-w64]. It will take less time and is more simple than [[Compiling FileZilla 3 under Windows]].

== OS version ==

Any recent Linux should do the trick. For the sake of simplicity, this guide focuses on Debian(-based) distributions.

We stronly recommend to use [http://debian.org Debian '''9''' (Stretch)] or later ('''recommended''')

== Setting up the build environment ==

As root, execute:
 dpkg --add-architecture i386
 apt update
 apt install automake autoconf libtool make gettext lzip
 apt install mingw-w64 pkg-config wx-common wine wine32 wine-binfmt subversion git

Back as normal user, execute:
 mkdir ~/prefix
 mkdir ~/src
 export PATH="$HOME/prefix/bin:$PATH"
 export LD_LIBRARY_PATH="$HOME/prefix/lib:$LD_LIBRARY_PATH"
 export PKG_CONFIG_PATH="$HOME/prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
 export TARGET_HOST=x86_64-w64-mingw32

 wine reg add HKCU\\Environment /f /v PATH /d "`x86_64-w64-mingw32-g++ -print-search-dirs | grep ^libraries | sed 's/^libraries: =//' | sed 's/:/;z:/g' | sed 's/^\\//z:\\\\\\\\/' | sed 's/\\//\\\\/g'`"

<!--
<p style="font-size:150%;color:#ff0000">'''Beware:''' You need to patch your MinGW runtime!</p>
Note: This does not affect mingw-w64 >= v4.0.6, mingw-w64 v4.0.6 is available in Ubuntu 16.10.

The version of the MinGW runtime ships with Debian based distributions has broken string conversion functions. You need to fetch the source of the mingw-64 packet and apply the following two patches:
 https://sourceforge.net/p/mingw-w64/mingw-w64/ci/2474f3904a1fbce19d96383a9633e6c2eeb427ea/
 https://sourceforge.net/p/mingw-w64/mingw-w64/ci/bca09678e3bfd67b2d445127280ee5a1d9d0453a/

Without these patches, FileZilla will not work properly and will fail in obscure ways.
-->

== GMP ==

 cd ~/src
 wget https://gmplib.org/download/gmp/gmp-6.1.2.tar.lz
 tar xf gmp-6.1.2.tar.lz
 cd gmp-6.1.2
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --disable-static --enable-shared --enable-fat
 make
 make install

== Nettle ==

 cd ~/src
 wget https://ftp.gnu.org/gnu/nettle/nettle-3.4.1.tar.gz
 tar xf nettle-3.4.1.tar.gz
 cd nettle-3.4.1
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --enable-shared --disable-static --enable-fat LDFLAGS="-L$HOME/prefix/lib" CPPFLAGS="-I$HOME/prefix/include"
 make
 make install

== GnuTLS ==

 cd ~/src
 wget https://www.gnupg.org/ftp/gcrypt/gnutls/v3.6/gnutls-3.6.7.tar.xz
 tar xvf gnutls-3.6.7.tar.xz
 cd gnutls-3.6.7
 ./configure --host=$TARGET_HOST -enable-shared --disable-static --without-p11-kit --with-included-libtasn1 --with-included-unistring --enable-local-libopts --disable-srp-authentication --disable-dtls-srtp-support --disable-heartbeat-support --disable-psk-authentication --disable-anon-authentication --disable-openssl-compatibility --without-tpm --disable-cxx
 make
 make install

== Compile SQLite ==

 cd ~/src
 wget https://sqlite.org/2018/sqlite-autoconf-32600-00.tar.gz
 tar xvzf sqlite-autoconf-3260000.tar.gz
 cd sqlite-autoconf-3260000
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --enable-shared --disable-static --disable-dynamic-extensions
 make
 make install

== NSIS ==

 cd ~/src
 wget https://prdownloads.sourceforge.net/nsis/nsis-3.04-setup.exe
 wine nsis-3.04-setup.exe /S

The above may print a lot of errors and warnings. Ignore them, check for success this way:
 [ -f "$HOME/.wine/drive_c/Program Files/NSIS/makensis.exe" ] && echo "Success!"

== Compile wxWidgets ==

 cd ~/src
 git clone --branch WX_3_0_BRANCH --single-branch https://github.com/wxWidgets/wxWidgets.git wx3
 cd wx3
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --enable-shared --disable-static
 make
 make install

== Compile libfilezilla ==

 cd ~/src
 svn co https://svn.filezilla-project.org/svn/libfilezilla/tags/0.15.1 lfz
 cd lfz
 autoreconf -i
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --enable-shared --disable-static 
 make
 make install
 cp $HOME/prefix/lib/wx*.dll $HOME/prefix/bin

== Compile FileZilla ==

 cd ~/src
 svn co https://svn.filezilla-project.org/svn/FileZilla3/tags/3.40.0/ fz
 cd fz
 autoreconf -i
 ./configure --host=$TARGET_HOST --prefix="$HOME/prefix" --enable-shared --disable-static --with-pugixml=builtin
 make
 # strip debug symbols
 $TARGET_HOST-strip src/interface/.libs/filezilla.exe
 $TARGET_HOST-strip src/putty/.libs/fzsftp.exe
 $TARGET_HOST-strip src/putty/.libs/fzputtygen.exe
 $TARGET_HOST-strip src/fzshellext/64/.libs/libfzshellext-0.dll
 $TARGET_HOST-strip src/fzshellext/32/.libs/libfzshellext-0.dll
 $TARGET_HOST-strip data/dlls/*.dll
 cd data
 wine "$HOME/.wine/drive_c/Program Files/NSIS/makensis.exe" install.nsi

Voila, there's now FileZilla_3_setup.exe in the current directory.