Hello. I fix this problem adding this line #include </usr/X11R6/include/X11/Xlib.h> in GX11Gui.cxx as I found in that mail http://root.cern.ch/root/roottalk/roottalk01/4143.html But I don't understand why to do in this way. I continued the compilation but I got another error g++ -O -pipe -Wall -Woverloaded-virtual -fPIC -Iinclude -D_REENTRANT -I/usr/local/include -o x11ttf/src/TGX11TTF.o -c x11ttf/src/TGX11TTF.cxx In file included from include/TGX11.h:31, from include/TGX11TTF.h:29, from x11ttf/src/TGX11TTF.cxx:28: /usr/local/include/X11/Xlib.h:1882: ISO C++ forbids declaration of `XSetTransientForHint' with no type ... a lot of declaration like the last one gmake: *** [x11ttf/src/TGX11TTF.o] Error 1 Can you help me? Thanks, Luillo On 16 Oct 2002, Fons Rademakers wrote: > Make sure you have the correct X11 devel pacakage installed. > > Cheers, FOns. > > > On Wed, 2002-10-16 at 13:28, Luigi Esposito-MACRO wrote: > > Hello, > > I have downloaded the ROOT source v3.03.09 and I have tried to compiled > > it with the compiler gcc version 2.96 on a RedHat 7.1. > > > > I got the following error: > > > > > > g++ -O -pipe -Wall -Woverloaded-virtual -fPIC -Iinclude -D_REENTRANT -o > > x11/src/GX11Gui.o -c x11/src/GX11Gui.cxx > > x11/src/GX11Gui.cxx: In method `Int_t TGX11::OpenDisplay (const char > > *)': > > x11/src/GX11Gui.cxx:733: `XInitThreads' undeclared (first use this > > function) > > x11/src/GX11Gui.cxx:733: (Each undeclared identifier is reported only > > once for each function it appears in.) > > gmake: *** [x11/src/GX11Gui.o] Error 1 > > > > > > What is the problem? > > > > Thanks for any suggestion, > > > > > > Luillo > > > > >
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