Hi John, > wxLua does not have switches "--with-libpng" are you talking about > building the wxWidgets library?
yes; my apologies this wasn't clear. >> I ended up patching the makefile >> (luamodule/CMakeFiles/wxLuaModules.dir/link.txt), but would prefer >> something a bit more robust. > > This is not a good idea. I agree; it wasn't my preference. > to fix it by using the system libs. Hint: don't specify --with-libpng > at all and last few lines of the output of configure tells you what > will be used. Don't forget to clean or preferably delete the old I'll try that, but I wanted to be explicit in my file that I want to use the system library. >>> force) to exclude wxpng from the link command, but failed. Ideally >>> wxlua should somehow check if the library is configured as "builtin" >>> or "sys", but for now I just need to check if this is going to work > > Check what and from whom? > http://wxlua.sourceforge.net/docs/install.html#C2.5 Check that wxpng-* library should not be linked into wx.so. I did read the documentation, but I missed a warning in the ./configure output that indicated that "system png library will not be used without system zlib" and as the result wxwidgets was using system png library, so I was fighting against that. Thank you John for clarifying this. I'm rebuilding with (more) appropriate settings... Paul. On Mon, Mar 18, 2013 at 3:28 PM, John Labenski <jlaben...@gmail.com> wrote: > On Mon, Mar 18, 2013 at 1:55 AM, Paul K <paulclin...@yahoo.com> wrote: >> Hi John, >> >> I ended up patching the makefile >> (luamodule/CMakeFiles/wxLuaModules.dir/link.txt), but would prefer >> something a bit more robust. > > This is not a good idea. > >> On Sun, Mar 17, 2013 at 9:58 AM, Paul K <paulclin...@yahoo.com> wrote: >>> Hi John, >>> >>> I ran into an issue with configuring wxlua to use system libpng >>> library. I tried both --with-libpng=builtin and --with-libpng=sys, but >>> I get exactly the same result. > > wxLua does not have switches "--with-libpng" are you talking about > building the wxWidgets library? > >>> This discussion >>> (https://groups.google.com/forum/?fromgroups=#!topic/wx-users/2QWQD0qUVUc) >>> indicates that it's better to use a system library, but I can't > > Yes, it nearly always is best to use the system libraries for such > basic libs (zlib, png, tiff, jpeg, and gtk). > > Reread that thread, it explains exactly what your problem is and how > to fix it by using the system libs. Hint: don't specify --with-libpng > at all and last few lines of the output of configure tells you what > will be used. Don't forget to clean or preferably delete the old > wxWidgets build dir to be sure that you're getting what you think > you're getting. > >>> configure wxlua to *not* link builtin library as can be see from this >>> output from cmake: >>> >>> -- * - wxWidgets_LIBRARIES = >>> -L/home/paul/zbs/build/deps/lib;-pthread;;;/home/paul/zbs/build/deps/lib >>> /libwx_gtk2u_stc-2.9.a;/home/paul/zbs/build/deps/lib/libwx_gtk2u_aui-2.9.a;/home/paul/zbs/build/deps/lib >>> /libwx_baseu_net-2.9.a;/home/paul/zbs/build/deps/lib/libwx_gtk2u_html-2.9.a;/home/paul/zbs/build/deps/lib >>> /libwx_gtk2u_adv-2.9.a;/home/paul/zbs/build/deps/lib/libwx_gtk2u_core-2.9.a;/home/paul/zbs/build/deps/lib >>> /libwx_baseu-2.9.a;-lwxscintilla-2.9;-pthread;-lgthread-2.0;-lrt;-lX11;-lXxf86vm;-lgtk-x11-2.0;-lgdk-x11-2.0;-latk- >>> 1.0;-lgio-2.0;-lpangoft2-1.0;-lpangocairo-1.0;-lgdk_pixbuf-2.0;-lcairo;-lpango-1.0;-lfreetype;-lfontconfig;-lgobject- >>> 2.0;-lglib-2.0;-lwxregexu-2.9;-lwxjpeg-2.9;-lwxpng-2.9;-lwxzlib-2.9;-ldl;-lm >>> >>> (note the last last that includes -lwxpng-2.9). I tried (using brute >>> force) to exclude wxpng from the link command, but failed. Ideally >>> wxlua should somehow check if the library is configured as "builtin" >>> or "sys", but for now I just need to check if this is going to work > > Check what and from whom? > >>> for me, so, I'm fine with modifying it manually. I need to exclude >>> libpng as it creates problems with systems libraries required by GTK >>> on Linux. >>> >>> What is the way for me to tell wxlua *not* to include wxpng-2.9? Thank you. > > wxLua links to whatever libraries that wxWidgets was linked to. Please > see the docs below and run the appropriate "wx-config" command to > understand how your wxWidgets libs were built and where the values in > wxWidgets_LIBRARIES come from. > > http://wxlua.sourceforge.net/docs/install.html#C2.5 > > As I have mentioned before and as people on the Lua mailing explained > recently (though not definitively enough) you cannot just link > together random versions or builds of libraries together. For example, > if you want to use the system png library then everything your app > (wx.so) links to must have been built against that same lib. It is a > recipe for disaster to try mix versions. It may work, but you should > have no expectation that it should or will the next time you build it. > The problem with using another random version/build of a png lib (for > example) on Linux is that GTK will definitely be linked to the sys > version and GTK cannot be easily (or maybe ever) be linked to > staticly. > > Regards, > John > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_mar > _______________________________________________ > wxlua-users mailing list > wxlua-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wxlua-users ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. 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