From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <438EF1D6.9090004@domain.hid> Date: Thu, 01 Dec 2005 13:51:34 +0100 From: Philippe Gerum MIME-Version: 1.0 Subject: Re: [Xenomai-help] Problem building MVM: "error: The X11 library '-lX11' could not be found" References: <8DF1258D5F0FC94EBF5810BF2C7BF2FB3FFDE3@domain.hid> In-Reply-To: <8DF1258D5F0FC94EBF5810BF2C7BF2FB3FFDE3@domain.hid> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Ashri, Sarit" Cc: xenomai@xenomai.org Ashri, Sarit wrote: >>Ashri, Sarit wrote: >> >>>Hi Philippe, >>> >>>I did read the files. What I don't understand is how to build the >>>Xenomai With Simulator support? >>>When I build Xenomai without simulator support - everything >> >>works just >> >>>fine (crossed compiled to work on PPC with Linux 2.6.13.4). >>>As soon as I mark Simulator->Minute Virtual Machine I get that error >>>(X11 library..). >>>I understood from reading previous mails on the internet >> >>that I should >> >>>be able to build the MVM on my host computer which is NOT >> >>patched by >> >>>Adeos (RHEL3.0 Linux on i686) through Regular Xenomai >> >>CROSS_COMPILING >> >>>and installation. >> >>Try this: >> >>- Build your target system first without the simulator using >>cross-compilation for ppc. Let's say that you installed the >>results under /usr/realtime, which is the default. >> >>- Then, build the simulator separately for the host: >> >>$ mkdir sim-build && cd sim-build >>$ .../xenomai/sim/configure --with-xeno-dir=/usr/realtime >>--with-gcc-tarball=/something/gcc-2.95.3.tar.bz2 >>$ make install >> > > Everything compiled fine, but when I tried to compile the native demo > for the > Simulator I received the following error: > cd .../skins/native/demos > [demos]$ /usr/realtime/bin/gcic -o satch_s.o -c satch.c -g -I > /opt/nfs_root/usr/realtime/include > In file included from > /opt/nfs_root/usr/realtime/include/nucleus/asm/atomic.h:23, > from > /opt/nfs_root/usr/realtime/include/nucleus/system.h:33, > from > /opt/nfs_root/usr/realtime/include/nucleus/asm-generic/system.h:560, > from > /opt/nfs_root/usr/realtime/include/nucleus/asm/system.h:23, > from > /opt/nfs_root/usr/realtime/include/nucleus/types.h:40, > from > /opt/nfs_root/usr/realtime/include/nucleus/queue.h:23, > from > /opt/nfs_root/usr/realtime/include/nucleus/timer.h:23, > from > /opt/nfs_root/usr/realtime/include/nucleus/thread.h:23, > from > /opt/nfs_root/usr/realtime/include/native/task.h:26, > from satch.c:4: > /usr/include/asm/atomic.h:40: warning: #warning Using kernel header in > userland program. BAD! > In file included from > /opt/nfs_root/usr/realtime/include/nucleus/system.h:33, > from Gah. Ok, my mistake. Since you are cross-compiling for your target, you need to have two Xenomai installations, once for the ppc target to run the real stuff, another one to run the virtual simulation environment for the x86 host. So, ... - Configure and cross-compile Xenomai for ppc without simulation support for installing to /opt/nfsroot - Configure and compile Xenomai natively for x86 with simulation support for installing to, e.g. /opt/local This way at least, you won't need to build the simulator apart, it will be built as part of the second step. Most of the native x86 support won't be used (aside of the simulator, of course), but at least, this will work. On the host, you will need to set your PATH and LD_LIBRARY_PATH to /opt/local/bin, and /opt/local/lib respectively, so that the simulation libs and tools are found. The #warning won't go away though; only v2.1 gets rid of this by avoiding any kernel header inclusion in user-space. Debian systems would not bother you with this (at least sarge doesn't), but RH actually do. -- Philippe.