Albrecht Schlosser wrote: - snip - >> Duncan Gibson wrote: >> >> My apologies, but it's not obvious to some people who post here. >> >> Some people also come unstuck by having multiple versions of fltk-1.1.x >> and/or fltk-1.3.x installed where include files and libraries might not >> match or where they built and installed them with different options. >> >> Final suggestion from me: >> Does fltk-config* --ldflags return non-standard -L options that you >> will need to give to the linker so that it can find the libraries? > > ... and two more from me: > > Is there any chance that your installed libs (you wrote that you > "installed" them, i.e. did not compile them yourself?) might have been > compiled with a different compiler version? If so, try compiling them > yourself and see what happens. > > It is also not obvious if you tried to link with gcc/g++ before you tried > to use ld. I don't know what happens "under the hood", but generally it > is not recommended to link with ld, but instead use the compiler frontend > to drive the linker, e.g. > > g++ -o hello hello.cxx `fltk(2)-config --cxxflags --ldflags` should work. > > If this doesn't work, please post the exact error messages. > > You can even use the generated fltk(2)-config in the fltk source directory > without installing it for testing. That's what I do often to compile and > link with different fltk (test/development) versions. > > Albrecht
@Duncan: Sorry, there's nothing you have to apologies for, I have to. My writing wasn't as polite as should have been. I don't get rid of that problem for days. And that drives me crazy. I got the sources from the subversion repository (revision 6672). I compiled it on the same maschine and installed it immidiatly thereafter. > make > sudo make install I use g++ as frontend. I write ld to make clear I mean the link phase. Well, by now things become even more rediculous. The single line Albrecht suggested works. But doing it with make in two steps doesn't. The -t option to ld doesn't make any differnce, but shows that ld seems to ignore libfltk.a because it doesn't appear in the output. Any more ideas? Thanks, Dieter ---------------- makefile: CC = g++ CXXFLAGS = -I/usr/local/include -I/usr/include/freetype2 -I/usr/X11R6/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_THREAD_SAFE -D_REENTRANT LDFLAGS = -t -L/usr/local/lib -L/usr/X11R6/lib -lfltk -lXext -lXft -lfontconfig -lXinerama -lpthread -ldl -lm -lX11 hello : hello.o end makefile ----------------- > fltk-config --cxxflags -I/usr/local/include -I/usr/include/freetype2 -I/usr/X11R6/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_THREAD_SAFE -D_REENTRANT > fltk-config --ldflags -L/usr/local/lib -L/usr/X11R6/lib -lfltk -lXext -lXft -lfontconfig -lXinerama -lpthread -ldl -lm -lX11 > make g++ -I/usr/local/include -I/usr/include/freetype2 -I/usr/X11R6/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_THREAD_SAFE -D_REENTRANT -c -o hello.o hello.cpp g++ -t -L/usr/local/lib -L/usr/X11R6/lib -lfltk -lXext -lXft -lfontconfig -lXinerama -lpthread -ldl -lm -lX11 hello.o -o hello hello.o: In function `main': hello.cpp:(.text+0x40): undefined reference to `Fl_Window::Fl_Window(int, int, char const*)' hello.cpp:(.text+0xd9): undefined reference to `fl_define_FL_SHADOW_LABEL()' hello.cpp:(.text+0xf5): undefined reference to `Fl_Group::end()' hello.cpp:(.text+0x109): undefined reference to `Fl_Window::show(int, char**)' hello.cpp:(.text+0x111): undefined reference to `Fl::run()' hello.o: In function `Fl_Box::Fl_Box(int, int, int, int, char const*)': hello.cpp:(.gnu.linkonce.t._ZN6Fl_BoxC1EiiiiPKc[Fl_Box::Fl_Box(int, int, int, int, char const*)]+0x1d): undefined reference to `Fl_Widget::Fl_Widget(int, int, int, int, char const*)' hello.cpp:(.gnu.linkonce.t._ZN6Fl_BoxC1EiiiiPKc[Fl_Box::Fl_Box(int, int, int, int, char const*)]+0x25): undefined reference to `vtable for Fl_Box' /usr/lib/gcc/i586-suse-linux/4.0.2/../../../../i586-suse-linux/bin/ld: link errors found, deleting executable `hello' /usr/lib/gcc/i586-suse-linux/4.0.2/../../../../i586-suse-linux/bin/ld: mode elf_i386 /usr/lib/gcc/i586-suse-linux/4.0.2/../../../crt1.o /usr/lib/gcc/i586-suse-linux/4.0.2/../../../crti.o /usr/lib/gcc/i586-suse-linux/4.0.2/crtbegin.o -lXext (/usr/X11R6/lib/libXext.so) -lXft (/usr/X11R6/lib/libXft.so) -lfontconfig (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libfontconfig.so) -lXinerama (/usr/X11R6/lib/libXinerama.so) /lib/libpthread.so.0 -ldl (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libdl.so) -lX11 (/usr/X11R6/lib/libX11.so) hello.o -lstdc++ (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libstdc++.so) -lm (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libm.so) -lgcc_s (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libgcc_s.so) /lib/libc.so.6 (/usr/lib/libc_nonshared.a)elf-init.oS -lgcc_s (/usr/lib/gcc/i586-suse-linux/4.0.2/../../../libgcc_s.so) /usr/lib/gcc/i586-suse-linux/4.0.2/crtend.o /usr/lib/gcc/i586-suse-linux/4.0.2/../../../crtn.o collect2: ld returned 1 exit status make: *** [hello] Fehler 1 _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
