Les kirjoitti viestissään (lähetysaika tiistai 19 kesäkuu 2007): > g++ GuiExample.cpp -o GuiExample > /tmp/cc2fblEI.o: In function `main': > GuiExample.cpp:(.text+0x1e): undefined reference to > `XOpenDisplay' GuiExample.cpp:(.text+0x102): undefined > reference to > `XCreateSimpleWindow' ... You aren't linking with the X libraries containing the functions you need. Add "-lX11" to the command line. > I have also tried using the basic make -k with the same > results (no surprise). So the question is, if the header is > found and cpp works, then I suspect either link or ld as the > culprits, but that would mean that the standard loader > execution is messed up, because it should look in /usr/lib for > the associated ".a" files that match the headers. No, that's not how gcc works. You must add all other libraries than the standard C runtime on the compile/link command line. The include files don't contain any information telling the linker where to find the actual code implementing any external functions declared in the header. > When I look > in /lib/X11, the only file there is the error message > database. What happened to the X libraries? They are in /usr/lib (or /usr/lib64). -- Markku Kolkka markku.kolkka@xxxxxx
