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<refentry id="gtk-compiling" revision="4 Feb 2001">
<refmeta>
<refentrytitle>Compiling GTK+ Applications</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>GTK Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>Compiling GTK+ Applications</refname>
<refpurpose>
How to compile your GTK+ application
</refpurpose>
</refnamediv>
<refsect1>
<title>Compiling GTK+ Applications on UNIX</title>
<para>
To compile a GTK+ application, you need to tell the compiler where to
find the GTK+ header files and libraries. This is done with the
<literal>pkg-config</literal> utility.
</para>
<para>
The following interactive shell session demonstrates how
<literal>pkg-config</literal> is used:
<programlisting>
$ pkg-config --cflags gtk+-2.0
-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/atk-1.0
$ pkg-config --libs gtk+-2.0
-L/usr/lib -L/usr/X11R6/lib -lgtk-x11-2.0 -lgdk-x11-2.0 -lXi -lgdk_pixbuf-2.0 -lm -lpangox -lpangoxft -lXft -lXrender -lXext -lX11 -lfreetype -lpango -latk -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
</programlisting>
</para>
<para>
The simplest way to compile a program is to use the "backticks"
feature of the shell. If you enclose a command in backticks
(<emphasis>not single quotes</emphasis>), then its output will be
substituted into the command line before execution. So to compile
a GTK+ Hello, World, you would type the following:
<programlisting>
$ cc `pkg-config --cflags --libs gtk+-2.0` hello.c -o hello
</programlisting>
</para>
<para>
To compile a GTK+ program for the framebuffer, use the
"gtk+-linux-fb-2.0" package name instead of "gtk+-2.0":
<programlisting>
$ cc `pkg-config --cflags --libs gtk+-linux-fb-2.0` hello.c -o hello
</programlisting>
</para>
<para>
If you want to make sure that your program doesn't use any deprecated
functions, you can define the preprocessor symbol GTK_DISABLE_DEPRECATED
by using the command line option <literal>-DGTK_DISABLE_DEPRECATED=1</literal>.
There are similar symbols GDK_DISABLE_DEPRECATED,
GDK_PIXBUF_DISABLE_DEPRECATED and G_DISABLE_DEPRECATED for GDK, GdkPixbuf and
GLib.
</para>
<para>
If you want to make sure that your program doesn't use any functions which
may be problematic in a multihead setting, you can define the preprocessor
symbol GDK_MULTIHEAD_SAFE by using the command line option
<literal>-DGTK_MULTIHEAD_SAFE=1</literal>.
</para>
</refsect1>
</refentry>
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