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[[!meta copyright="Copyright © 2006, 2007, 2008, 2011, 2013 Free Software
Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]
# <a name="Building_the_Mach_Interface_Gene"> Building the Mach Interface Generator from Source </a>
If you want to build the Mach Interface Generator yourself instead of just
using a pre-built package, follow these instructions.
## <a name="Getting_the_Source_Code"> Getting the Source Code </a>
You can chose between getting the [sources from the developers'
RCS](https://git.savannah.gnu.org/git/hurd/):
$ git clone https://git.savannah.gnu.org/git/hurd/mig.git/
... or (if you are working on a Debian system) get the sources that are used for the
[current Debian mig package](http://packages.debian.net/source/unstable/mig):
$ apt source mig
The unpacked source tree is around 1 MiB, and the build tree also is around 1 MiB.
## <a name="_on_Debian_systems"> On Debian Systems: </a>
### <a name="Preparing_for_the_Build"> Preparing for the Build </a>
Building MIG requires the *build-essential* and *fakeroot* packages,
and some additional dependencies specified by the mig source package:
# apt install build-essential fakeroot
# apt build-dep mig
### <a name="Building_and_Installing"> Building and Installing </a> <a name="_a_deb_file"> ... a _.deb_ file </a>
Change into the directory with the downloaded / unpacked MIG sources:
$ cd mig-X.X.X.XX
Start the build process:
$ dpkg-buildpackage -us -uc -b -rfakeroot
Note: if you are building on a non-32bit system, you need to also pass e.g.
`--target-arch=i386` to build the 32bit version.
This will create a _.deb_ package in the parent directory,
which you can then install on your system.
## <a name="_on_non_Debian_systems"> On non-Debian Systems: </a>
### <a name="Preparing_for_the_Build"> Preparing for the Build </a>
Building the Mach Interface Generator requires a C compiler, a standard 32 bit
C library (with corresponding header files), your favourite flavor of awk
(gawk), yacc (bison), lex (flex) and make.
Additionally, you need to have GNU Mach's header files installed. See
[[building GNU Mach|mach/gnumach/building]] about how to do that, then come back here.
### <a name="Building_and_Installing"> Building and Installing </a>
First, generate the configuration files:
$ cd mig
$ autoreconf --install
The Mach Interface Generator has to be built in a separate build directory:
$ mkdir build
$ cd build
Find the base directory where you installed GNU Mach's header files and where
you now intend to install the Mach Interface Generator (e.g. _~/gnu_), and run
configure:
$ GNU=~/gnu
$ TARGET_CPPFLAGS=-I"$GNU"/include ../configure --prefix="$GNU"
If you want to build 32-bit gnumach on a 64-bit machine, you need to add a --target option. mig(com) will be build as ELF64 binary, but it will generate 32-bit stub code for gnumach:
$ GNU=~/gnu
$ TARGET_CPPFLAGS=-I"$GNU"/include ../configure --prefix="$GNU" --target=i686-gnu TARGET_CC=i686-linux-gnu-gcc
Build and install the Mach Interface Generator into _$GNU_ (i.e. _~/gnu/_ in our example):
$ make all install
To make your _mig_ binary easily available, you should append something like
the following to e.g. your _~/.bash\_profile_:
PATH=~/gnu/bin:$PATH
export PATH
If you already have e.g. _~/bin_ in your _$PATH_, you could also create a symbolic link:
$ ln -s ~/gnu/bin/mig ~/bin/
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