# gtkmm
This is gtkmm, the C++ API for GTK. 

# General information

gtkmm-3.0 and gtkmm-4.0 are different parallel-installable ABIs.
This file describes gtkmm-3.0.

Web site
 - https://gtkmm.gnome.org

Download location
 - https://download.gnome.org/sources/gtkmm

Reference documentation
 - https://gnome.pages.gitlab.gnome.org/gtkmm

The documentation on the web describes gtkmm-4.0.
If you want documentation of gtkmm-3.0, download a tarball.
Tarballs contain reference documentation. In tarballs generated with Meson,
see the untracked/docs/reference/html directory.

Discussion on GNOME's discourse forum
 - https://discourse.gnome.org/tag/cplusplus
 - https://discourse.gnome.org/c/platform

Git repository
 - https://gitlab.gnome.org/GNOME/gtkmm

Bugs can be reported to
 - https://gitlab.gnome.org/GNOME/gtkmm/issues

Patches can be submitted to
 - https://gitlab.gnome.org/GNOME/gtkmm/merge_requests

# Building

Whenever possible, you should use the official binary packages approved by the
supplier of your operating system, such as your Linux distribution.

## Building on Windows

See [README.win32](README.win32.md)

## Building from a release tarball

Extract the tarball and go to the extracted directory:
```
  $ tar xf gtkmm-@GTKMM_VERSION@.tar.xz
  $ cd gtkmm-@GTKMM_VERSION@
```
It's easiest to build with Meson, if the tarball was made with Meson,
and to build with Autotools, if the tarball was made with Autotools.
Then you don't have to use maintainer-mode.

How do you know how the tarball was made? If it was made with Meson,
it contains files in untracked/gdk/gdkmm/, untracked/gtk/gtkmm/ and
other subdirectories of untracked/.

### Building from a tarball with Meson

Don't call the builddir 'build'. There is a directory called 'build' with
files used by Autotools.
```
  $ meson setup --prefix /some_directory --libdir lib your_builddir .
  $ cd your_builddir
```

If the tarball was made with Autotools, you must enable maintainer-mode:
```
  $ meson configure -Dmaintainer-mode=true
```

Then, regardless of how the tarball was made:
```
  $ ninja
  $ ninja install
```
You can run the tests like so:
```
  $ ninja test
```

### Building from a tarball with Autotools

If the tarball was made with Autotools:
```
  $ ./configure --prefix=/some_directory
```
If the tarball was made with Meson, you must enable maintainer-mode:
```
  $ ./autogen.sh --prefix=/some_directory
```

Then, regardless of how the tarball was made:
```
  $ make
  $ make install
```
You can build the examples and tests, and run some of the tests, like so:
```
  $ make check
```

## Building from git

Building from git can be difficult so you should prefer building from
a release tarball unless you need to work on the gtkmm code itself.

jhbuild can be a good help
- https://gitlab.gnome.org/GNOME/jhbuild
- https://wiki.gnome.org/Projects/Jhbuild
- https://gnome.pages.gitlab.gnome.org/jhbuild

### Building from git with Meson

Maintainer-mode is enabled by default when you build from a git clone.

Don't call the builddir 'build'. There is a directory called 'build' with
files used by Autotools.
```
  $ meson setup --prefix /some_directory --libdir lib your_builddir .
  $ cd your_builddir
  $ ninja
  $ ninja install
```
You can run the tests like so:
```
  $ ninja test
```
You can create a tarball like so:
```
  $ ninja dist
```

### Building from git with Autotools
```
  $ ./autogen.sh --prefix=/some_directory
  $ make
  $ make install
```
You can build the examples and tests, and run some of the tests, like so:
```
  $ make check
```
You can create a tarball like so:
```
  $ make distcheck
```
or
```
  $ make dist
```
