X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=examples%2Fcross-compiling-windows-binary.mdwn;h=3a2eb56a95dd4d27e040db73b82d3eb267d8b37e;hb=39b01fe8c771163f2f426bc2dca01c4c607d9c70;hp=e8337e8463c242d455bc8b06bafd55ce0506ad7b;hpb=a1ba7a6f907786d8e6c9a4a3b62732c395db5a1c;p=wiki diff --git a/examples/cross-compiling-windows-binary.mdwn b/examples/cross-compiling-windows-binary.mdwn index e8337e8..3a2eb56 100644 --- a/examples/cross-compiling-windows-binary.mdwn +++ b/examples/cross-compiling-windows-binary.mdwn @@ -1,6 +1,6 @@ -[[!meta title="cross-compiling a Windows binary under Linux using MinGW"]] +[[!meta title="cross-compiling tinc for Windows under Linux using MinGW"]] -## Howto: cross-compiling a Windows binary under Linux using MinGW +## Howto: cross-compiling tinc for Windows under Linux using MinGW This howto describes how to create a Windows binary of tinc. Although it is possible to compile tinc under Windows itself, cross-compiling it under Linux @@ -24,19 +24,27 @@ There are only a few packages that need to be installed as root to get started: > sudo apt-get install mingw32 wine git-core > sudo apt-get build-dep tinc +Other Linux distributions may also have MinGW packages, use their respective +package management tools to install them. Debian installs the cross-compiler +in `/usr/i586-mingw32msvc/`. Other distributions might install it in another +directory however, for example `/usr/i686-pc-mingw32/`. Check in which directory +it is installed, and replace all occurences of `i586-mingw32msvc` in this +example with the correct name from your distribution. + ### Setting up the build directory and getting the sources -We will create a directory called `mingw/` in the home directory. -We use apt-get to get the required libraries necessary for tinc. +We will create a directory called `mingw/` in the home directory. We use +apt-get to get the required libraries necessary for tinc, and use `git` to get +the latest development version of tinc. > mkdir $HOME/mingw > cd $HOME/mingw > apt-get source openssl liblzo2-dev zlib1g-dev > git clone git://tinc-vpn.org/tinc -### Creating the mingw script +### Making cross-compilation easy -To make cross-compiling easy, we install a script called `mingw` that will set +To make cross-compiling easy, we create a script called `mingw` that will set up the necessary environment variables so configure scripts and Makefiles will use the MinGW version of GCC and binutils: @@ -45,7 +53,7 @@ use the MinGW version of GCC and binutils: > #!/bin/sh > export CC=i586-mingw32msvc-gcc > export CXX=i586-mingw32msvc-g++ -> export CPP=/usr/bin/i586-mingw32msvc-cpp +> export CPP=i586-mingw32msvc-cpp > export RANLIB=i586-mingw32msvc-ranlib > export PATH="/usr/i586-mingw32msvc/bin:$PATH" > exec "$@" @@ -55,19 +63,22 @@ If `$HOME/bin` is not already part of your `$PATH`, you need to add it: > export PATH="$HOME/bin:$PATH" -You can also run the export commands from the `mingw` script by hand instead of -calling the mingw script for every `./configure` or `make` command, or execute -`$HOME/bin/mingw $SHELL` to get a shell with the right environment variables -set. +We use this script to call `./configure` and `make` with the right environment +variables, but only when the `./configure` script doesn't support cross-compilation itself. +You can also run the export commands from the `mingw` script by +hand instead of calling the mingw script for every `./configure` or `make` +command, or execute `$HOME/bin/mingw $SHELL` to get a shell with these +environment variables set, but in this howto we will call it explicitly every +time it is needed. ### Compiling LZO Cross-compiling LZO is easy: -> cd $HOME/lzo2-2.03 -> mingw ./configure --host=mingw32 -> mingw make -> DESTDIR=$HOME/mingw mingw make install +> cd $HOME/mingw/lzo2-2.03 +> ./configure --host=i586-mingw32msvc +> make +> DESTDIR=$HOME/mingw make install ### Compiling Zlib @@ -83,7 +94,10 @@ tests, so we only build the static library here: OpenSSL is always a bit hard to compile, because they have their own `Configure` script that needs some tweaking. There is also a small bug in -e_os2.h that breaks compilation with recent versions of GCC. First download this [[openssl-cross-compilation.diff]] to your home directory, then patch OpenSSL, and then compile as usual: +e_os2.h that breaks compilation with recent versions of GCC. First download +this [[openssl-cross-compilation.diff]] to your home directory, then patch +OpenSSL, and then compile as usual. Do not use the `-j` option when compiling +OpenSSL, it will break. > cd $HOME/mingw/openssl-0.9.8k > patch < $HOME/openssl-cross-compilation.diff @@ -100,8 +114,8 @@ this is not necessary. > cd $HOME/mingw/tinc > autoreconf -fsi -> mingw ./configure --host=mingw32 -with-openssl=$HOME/mingw/usr/local -> mingw make +> ./configure --host=i586-mingw32msvc --with-openssl=$HOME/mingw/usr/local +> make ### Testing tinc