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docs: Add examples for use of GDK_VERSION_MIN_REQUIRED

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I had to work this out for myself, so better document it.
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Matthias Clasen 2012-08-03 01:49:56 +02:00
parent d1091c8bda
commit bdbd47818f
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docs/reference/gtk/compiling.sgml
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@ -63,6 +63,22 @@ to use. APIs that were deprecated before or introduced after
this range will trigger compiler warnings.
</para>
<para>
Here is how you would compile hello.c if you want to allow it
to use symbols that were not deprecated in 3.2:
<programlisting>
$ cc -DGDK_VERSION_MIN_REQIRED=GDK_VERSION_3_2 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
</programlisting>
</para>
<para>
And here is how you would compile hello.c if you don't want
it to use any symbols that were introduced after 3.4:
<programlisting>
$ cc -DGDK_VERSION_MAX_ALLOWED=GDK_VERSION_3_4 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
</programlisting>
</para>
<para>
The older deprecation mechanism of hiding deprecated interfaces
entirely from the compiler by using the preprocessor symbol