Editing Compiling FileZilla 3 under Windows

This documentation explains how to setup a build environment for [[FileZilla 3]] and how to compile it under Windows using [http://msys2.github.io/ msys2]. Msys2 is a cygwin environment. These instructions require you to run a 64bit Windows.

It will take some time to get everything working, but you will be able to use the build environment for other programs too.

For complete MSYS2 system and all needed dependencies installed, you will need 7GiB free space on your disk.

'''Note to wiki contributors: Do not change version numbers on your own. The build process is somewhat fragile and does break if you change things'''

__TOC__

=Installing the MSYS2 environment=

Download the 64bit MSYS2 installer and install it in a convenient location: [http://repo.msys2.org/distrib/x86_64/msys2-x86_64-20180531.exe msys2-x86_64-20180531.exe]

=Installing the compiler toolchain=

FileZilla's shell extension needs to be build both for 32bit as well as 64bit, hence we're going to need compilers for both 32bit and 64bit.

==  Tools and compiler ==

===First update===
Start the MSYS2 MinGW 64-bit shell
 pacman -Syu
close MSYS2 shell.

===Install tools and compiler toolchain===

Start MSYS2 shell, execute the following command to install the necessary packages:

 pacman -S base-devel msys2-devel mingw-w64-i686-toolchain mingw-w64-x86_64-toolchain 
 pacman -S svn git curl wget
 pacman -S ca-certificates

Execute the following to work around some most-annoying bugs in the toolchain

 # Fix missing platform prefix for windres
 [ -f /mingw64/bin/x86_64-w64-mingw32-windres.exe ] || ln -s /mingw64/bin/windres.exe /mingw64/bin/x86_64-w64-mingw32-windres.exe
 [ -f /mingw32/bin/i686-w64-mingw32-windres.exe  ] || ln -s /mingw32/bin/windres.exe /mingw32/bin/i686-w64-mingw32-windres.exe

 # Even when statically linking to libstdc++, it still tries to dynamically link to lib(win)pthread. On top of it, libtool is too
 # stupid to recognize the semantics of -Wl,-Bstatic. This leaves one option: Removing the dynamic import libraries.
 rm /mingw32/i686-w64-mingw32/lib/libpthread.dll.a
 rm /mingw32/i686-w64-mingw32/lib/libwinpthread.dll.a
 rm /mingw64/x86_64-w64-mingw32/lib/libpthread.dll.a
 rm /mingw64/x86_64-w64-mingw32/lib/libwinpthread.dll.a

== Setting up the environment==

Execute the following commands:
 mkdir ~/prefix
 echo 'export PATH="$HOME/prefix/bin:/mingw64/bin:/mingw32/bin:$PATH"' >> ~/.profile
 echo 'export PKG_CONFIG_PATH="$HOME/prefix/lib/pkgconfig"' >> ~/.profile
 echo 'export PATH="$HOME/prefix/bin:/mingw64/bin:/mingw32/bin:$PATH"' >> ~/.bash_profile
 echo 'export PKG_CONFIG_PATH="$HOME/prefix/lib/pkgconfig"' >> ~/.bash_profile

Restart the MSYS2 shell.

=Building dependencies=

==Building GMP==

 cd ~
 curl -O https://gmplib.org/download/gmp/gmp-6.1.2.tar.xz
 tar xf gmp-6.1.2.tar.xz
 cd gmp-6.1.2
 ./configure --build=x86_64-w64-mingw32 --prefix="$HOME/prefix" --enable-static --disable-shared --enable-fat
 make && make install

==Building Nettle==

 cd ~
 wget http://ftp.gnu.org/gnu/nettle/nettle-3.3.tar.gz
 tar xf nettle-3.3.tar.gz
 cd nettle-3.3
 ./configure --build=x86_64-w64-mingw32 --prefix="$HOME/prefix" --enable-static --disable-shared --enable-fat
 make && make install

==Building zlib==

 cd ~
 wget http://zlib.net/zlib-1.2.11.tar.gz
 tar xf zlib-1.2.11.tar.gz
 cd zlib-1.2.11
 ./configure --prefix="$HOME/prefix" --static -u=GNU
 make && make install

==Building GnuTLS==

 cd ~
 wget ftp://ftp.gnutls.org/gcrypt/gnutls/v3.5/gnutls-3.5.15.tar.xz
 tar xf gnutls-3.5.15.tar.xz
 cd gnutls-3.5.15
 ./configure --prefix="$HOME/prefix" --enable-static --disable-shared --build=x86_64-w64-mingw32 --with-included-libtasn1 --disable-doc --disable-guile --without-p11-kit --enable-local-libopts --disable-nls --with-included-unistring
 make && make install
 
 # The __declspec(dllimport) is needed for DLLs, but we're linking statically. It thus results in undefined references. Remove it.
 sed -i 's/__declspec(dllimport)//' "$HOME/prefix/include/gnutls/gnutls.h"

==Building SQLite==

 cd ~
 wget https://sqlite.org/2017/sqlite-autoconf-3200100.tar.gz
 tar xf sqlite-autoconf-3200100.tar.gz
 cd sqlite-autoconf-3200100
 ./configure --build=x86_64-w64-mingw32 --prefix="$HOME/prefix" --enable-static --disable-shared
 make && make install

==Building wxWidgets==

 cd ~
 svn co https://github.com/wxWidgets/wxWidgets/branches/WX_3_0_BRANCH wx3
 cd wx3
 ./configure --prefix="$HOME/prefix" --enable-static --disable-shared --build=x86_64-w64-mingw32 --enable-unicode --without-libtiff --without-libjpeg --with-expat=builtin --with-libpng=builtin
 make && make install

==Building libfilezilla==

 cd ~
 svn co https://svn.filezilla-project.org/svn/libfilezilla/trunk libfilezilla
 cd libfilezilla
 autoreconf -i 
 ./configure --build=x86_64-w64-mingw32 --prefix="$HOME/prefix" --enable-static --disable-shared
 make && make install

=Building Filezilla=

==Download FileZilla==

 cd ~
 svn co https://svn.filezilla-project.org/svn/FileZilla3/trunk filezilla

==Building FileZilla==

 cd ~/filezilla
 autoreconf -i
 ./configure --build=x86_64-w64-mingw32 --with-pugixml=builtin LDFLAGS="-static-libgcc -static-libstdc++"
 make

==Stripping debug symbols==

 strip src/interface/.libs/filezilla.exe
 strip src/putty/.libs/fzsftp.exe
 strip src/putty/.libs/fzputtygen.exe
 strip src/fzshellext/64/.libs/libfzshellext-0.dll
 strip src/fzshellext/32/.libs/libfzshellext-0.dll

==Building the installer==

=== Installing NSIS ===

Download and install NSIS '''3''' from http://nsis.sourceforge.net/

=== Compile the installer script ===

Right click data/install.nsi in Explorer and use "Compile NSIS Script" from context menu.

= Troubleshooting =

If you run into problems, please make sure you've followed each step exactly how it is explained and that you haven't missed any steps along the way.