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>When installing a GTK+ application, configure reports
that it can't find GTK. <I
CLASS="EMPHASIS"
>[GTK 2.x]</I
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><P
>There are several common reasons for this:</P
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><LI
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>You have an old version of GTK installed
somewhere. You should remove this old copy, but note that
this may break applications that have been compiled against
the old version.</P
></LI
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><P
><TT
CLASS="LITERAL"
>pkg-config</TT
> (or another
component of GTK) isn't in your path, or there is an old
version on your system. Type:</P
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CLASS="LITERALLAYOUT"
><TT
CLASS="LITERAL"
>pkg-config gtk+-2.0 --modversion</TT
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>to check for both of these. If it returns a value
different from what you expect, then you have an old
version of GTK on your system.</P
></LI
><LI
><P
>The ./configure script can't find the GTK
libraries. As ./configure compiles various test programs, it needs to be
able to find the GTK libraries. See the question above
for help on this. </P
></LI
></UL
><P
>If none of the above help, then have a look in
config.log, which is generated by ./configure as it runs. At the
bottom will be the last action it took before failing. If it is a
section of source code, copy the source code to a file and compile it
with the line just above it in config.log. If the compilation is
successful, try executing it.</P
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