wireshark/README.msys2

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This document contains instructions to build Wireshark natively on Windows
using GCC and MinGW-w64 with the MSYS2 distribution.
Steps to setup the build environment:
1. Download and install MSYS2 from https://www.msys2.org.
2. Open the MSYS2 MSYS shell.
3. Update with "pacman -Syu" as many times as necessary. You may also wish
to install base-devel at this point: pacman -S base-devel. Anytime you
want to run pacman it's recommended to do so from the MSYS shell.
4. Install pactoys for convenience:
$ pacman -S pactoys
5. Install the dependencies. From the source directory run:
$ ./tools/msys2-setup.sh --install-all
Individual packages can be installed using pacboy:
$ pacboy -S toolchain:x cmake:x ninja:x ccache:x
There isn't a native git package provided with MSYS2 so it's recommended that
you continue using the Git-For-Windows installer (or see [1]).
From this point on it's a typical ninja build:
1. Open the MSYS2 MINGW64 shell.
2. Create the build directory. This example will assume the build directory
is under the source directory:
$ cd $srcdir && mkdir build && cd build
3. Run cmake:
$ cmake -DENABLE_CCACHE=Yes -DDISABLE_WERROR=Yes ..
4. Build by running "ninja" in the build directory:
$ ninja
Currently the Wireshark MinGW-w64 build using MSYS2 has the following
limitations:
* The ETW extcap (etwdump) does not build.
* Some optional dependencies are not available in the official MSYS2
repositories. These are:
- AirPcap
- libsmi
- Kerberos
- Lua-unicode (Lua 5.1 is available and can be used instead)
- SBC codec
- BCG729 codec
* There is no Wireshark binary package available. More work is
needed to implement this. To be decided if it will use NSIS or something
else.
* Many compiler warnings to be fixed.
References:
[1]https://github.com/git-for-windows/git/wiki/Install-inside-MSYS2-proper