I seem to have compilation errors with the latest wesnoth update in slackware current:<br><br>if [ &quot;exported&quot; = &quot;&quot; ] || [ &quot;exported&quot; = &quot;exported&quot; ]; then echo &#39;&#39; &gt;/tmp/westemp$$; \                                                                              <br>
        else echo &#39;#define REVISION    &quot;exported&quot;&#39; &gt;/tmp/westemp$$; fi;\          <br>        if cmp -s revision.hpp /tmp/westemp$$ 2&gt;/dev/null; then :; else cp /tmp/westemp$$ revision.hpp; fi; \                                                       <br>
        if [ -e /tmp/westemp$$ ]; then rm /tmp/westemp$$; fi                      <br>depbase=`echo tools/exploder_utils.o | sed &#39;s|[^/]*$|.deps/&amp;|;s|\.o$||&#39;`;\        <br>        g++ -DHAVE_CONFIG_H -I. -I..   -I/usr/include   -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include   -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng14     -DHAVE_REVISION -I../intl -I../intl -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -DWESNOTH_PATH=\&quot;/usr/share/wesnoth\&quot; -DLOCALEDIR=\&quot;translations\&quot; -DHAS_RELATIVE_LOCALEDIR=1 -DFIFODIR=\&quot;/var/run/wesnothd\&quot; -DWESNOTH_PREFIX=\&quot;/usr\&quot; -Werror -Wno-unused-parameter -O2 -W -Wall -ansi -O2 -march=i486 -mtune=i686 -DDISABLE_POOL_ALLOC -DOLD_FRIBIDI -I/usr/include/fribidi    -D_X11     -I/usr/include -MT tools/exploder_utils.o -MD -MP -MF $depbase.Tpo -c -o tools/exploder_utils.o tools/exploder_utils.cpp &amp;&amp;\                         <br>
        mv -f $depbase.Tpo $depbase.Po                                            <br>tools/exploder_utils.cpp: In function ‘void save_image(surface, const std::string&amp;)’:                                                                               <br>
tools/exploder_utils.cpp:177: error: ‘png_voidp_NULL’ was not declared in this scope                                                                                <br>tools/exploder_utils.cpp:178: error: ‘png_error_ptr_NULL’ was not declared in this scope                                                                            <br>
make: *** [tools/exploder_utils.o] Error 1<br><br>Does anybody have any clue what&#39;s going on?<br><br>Thanx,<br>Nikos Skalkotos<br>