Hi When I install NCL on my system. There are many error about X11 appeared. Such like: xdevice.c(40): catastrophic error: could not open source file "X11/Xlib.h" rasdraw.c(30): catastrophic error: could not open source file "X11/Intrinsic.h" w_idt.c(26): catastrophic error: could not open source file "X11/Intrinsic.h" X11_class0.c(39): catastrophic error: could not open source file "X11/Xlib.h" ld: cannot find -lXpm ....... I search for these two file by 'locate'. Only find them: /usr/include/xulrunner-sdk-1.9/system_wrappers/X11/Intrinsic.h /usr/include/xulrunner-sdk-1.9/system_wrappers/X11/Xlib.h And there are nothingin these two files. : Xlib.h： #pragma GCC system_header #pragma GCC visibility push(default) #include_next <X11/Xlib.h> #pragma GCC visibility pop Intrinsic.h #pragma GCC system_header #pragma GCC visibility push(default) #include_next <X11/Intrinsic.h> #pragma GCC visibility pop Them I install libX11-devel and reinstall xorg-x11-proto-devel. But still can't find Xlib.h and Intrinsic.h Does anybody know the reason? Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100317/0c7da161/attachment-0004.html>