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m4: Fix GTK_CHECK_BACKEND() to also check for a minimum version

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This should make the macro slightly more useful.

Update the documentation mentioning the macro as well.
This commit is contained in:
Emmanuele Bassi
2011-02-17 09:33:07 +00:00
parent a88a1fc832
commit 64934a7623
3 changed files with 15 additions and 23 deletions
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7
docs/reference/gtk/compiling.sgml
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@ -88,10 +88,11 @@ line option <literal>-DGTK_MULTIDEVICE_SAFE=1</literal>.
list of modules to be checked along with GTK+.</listitem>
</varlistentry>
<varlistentry>
<term>GTK_CHECK_BACKEND([backend-name], [if-found], [if-not-found])</term>
<term>GTK_CHECK_BACKEND([backend-name], [minimum-version], [if-found], [if-not-found])</term>
<listitem>This macro should be used to check if a specific backend
is supported by GTK+. The <emphasis>if-found</emphasis> and the
<emphasis>if-not-found</emphasis> arguments are optional.</listitem>
is supported by GTK+. The <emphasis>minimum-version</emphasis>,
<emphasis>if-found</emphasis> and <emphasis>if-not-found</emphasis>
arguments are optional.</listitem>
</varlistentry>
</variablelist>
</para>

2
docs/reference/gtk/migrating-2to3.xml
View File

@ -900,7 +900,7 @@ AM_CONDITIONAL(BUILD_X11, test `$PKG_CONFIG --variable=target gtk+-2.0` = "x11")
</programlisting></informalexample>
then you should now use the M4 macro provided by GTK+ itself:
<informalexample><programlisting>
GTK_CHECK_BACKEND([x11], [have_x11=yes], [have_x11=no])
GTK_CHECK_BACKEND([x11], [3.0.2], [have_x11=yes], [have_x11=no])
AM_CONDITIONAL(BUILD_x11, [test "x$have_x11" = "xyes"])
</programlisting></informalexample>
</para>