Hi everyone<br><br>I wasn't successful in running VMKit on my machine and I'm still struggling with doing it.<br>Maybe someone had at least one of my problems and knows how to solve it 
(because it seems to me that I ran into every problem that could occur :) ).
 <br><br>Thanks in advance,<br>Sergii.<br><br>So here is the story: <br>I have a fresh installation of Ubuntu 11.04 64bit with all important updates.<br>I'll tell in advance that I was careful in trying to compile LLVM and VMKit<br>
(i.e. I had only one version of llvm-gcc and/or clang installed at a <br>time, I always ran "make clean" before "make" etc.)<br> <br>To build VMKit we have first to checkout and build LLVM. The VMKit "Getting started"<br>
guide states: Make sure you have llvm-gcc or clang available when you configure LLVM.<br>Alternatively, you can also checkout clang in llvm-scr/tools.<br><br>The following steps are not done in sequence, they are alternatives
<br> <br>    1. Install llvm-gcc from Ubuntu repository. In this case the LLVM configuration
<br>       script doesn't see the gcc compiler although it's installed
<br>        ~/llvm/llvm-build$ sudo apt-get install llvm-gcc-4.5 
<br>        ~/llvm/llvm-build$ ../llvm-src/configure --enable-optimized
<br>            checking for clang... no
<br>            checking for llvm-gcc... llvm-gcc
<br>            checking for C compiler default output file name... configure: 
<br>            error: C compiler cannot create executables
<br>         <br>    2. Install older version of llvm-gcc from Ubuntu repository. This installation
<br>       doesn't create llvm-gcc executable but instead creates llvm-gcc-4.2 so I 
<br>       created a symlink to llvm-gcc-4.2. named llvm-gcc. The LLVM configuration goes fine
<br>       but building LLVM produces an error
<br>     <br>        ~/llvm/llvm-build$ sudo apt-get install llvm-gcc-4.2
<br>        ~/llvm/llvm-build$ sudo ln -s /usr/bin/llvm-gcc-4.2 /usr/bin/llvm-gcc
<br>        ~/llvm/llvm-build$ ../llvm-src/configure --enable-optimized
<br>        ~/llvm/llvm-build$ make
<br> <br>            llvm[1]: Compiling Host.cpp for Release+Asserts build
<br>            In file included from /usr/include/c++/4.5/cerrno:43:0,
<br>                     from /home/svozniuk/llvm/llvm-src/lib/Support/Unix/Unix.h:27,
<br>                     from /home/svozniuk/llvm/llvm-src/lib/Support/Unix/Host.inc:21,
<br>                     from /home/svozniuk/llvm/llvm-src/lib/Support/Host.cpp:20:
<br>            /usr/include/errno.h:69:13: error: multiple types in one declaration
<br>            /usr/include/errno.h:69:13: error: declaration does not declare anything
<br>            /bin/rm: cannot remove `/home/svozniuk/llvm/llvm-build/lib/Support/Release+Asserts/Host.d.tmp': No such file or directory
<br>            make[1]: *** [/home/svozniuk/llvm/llvm-build/lib/Support/Release+Asserts/Host.o] Error 1
<br>            make[1]: Leaving directory `/home/svozniuk/llvm/llvm-build/lib/Support'
<br>            make: *** [all] Error 1
<br>         <br>    3. Download llvm-gcc4.2-2.9-x86_64-linux archive from <a href="http://llvm.org">llvm.org</a>, extract<br>       it and manually add to the PATH. The configuration script finishes successfully<br>       but building LLVM produces an error<br>
 <br>        ~/llvm/llvm-build$ export PATH=$PATH:/home/svozniuk/llvm/llvm-gcc4.2-2.9-x86_64-linux/bin/
<br>        ~/llvm/llvm-build$ ../llvm-src/configure --enable-optimized
<br>        ~/llvm/llvm-build$ make
<br>            llvm[1]: Compiling CommandLine.cpp for Release+Asserts build
<br>            In file included from /home/svozniuk/llvm/llvm-src/lib/Support/CommandLine.cpp:25:
<br>            /home/svozniuk/llvm/llvm-src/include/llvm/Support/system_error.h:499: error: ‘EAFNOSUPPORT’ was not declared in this scope
<br>            /home/svozniuk/llvm/llvm-src/include/llvm/Support/system_error.h:500: error: ‘EADDRINUSE’ was not declared in this scope
<br>            .........And another 50 errors of the same type follow.........
<br> <br>    4. Install clang from Ubuntu repository (All ways (which I know of) to build LLVM with
<br>       llvm-gcc available have failed so now I switch to building LLVM with clang available).
<br>       The configuration finishes successfully but again I get an error trying to build LLVM<br> <br>        ~/llvm/llvm-build$ sudo apt-get install clang 
<br>        ~/llvm/llvm-build$ ../llvm-src/configure --enable-optimized
<br>        ~/llvm/llvm-build$ make     <br> <br>            llvm[1]: Compiling APFloat.cpp for Release+Asserts build
<br>            In file included from /home/svozniuk/llvm/llvm-src/lib/Support/APFloat.cpp:15:
<br>            In file included from /home/svozniuk/llvm/llvm-src/include/llvm/ADT/APFloat.h:104:
<br>            In file included from /home/svozniuk/llvm/llvm-src/include/llvm/ADT/APInt.h:18:
<br>            In file included from /home/svozniuk/llvm/llvm-src/include/llvm/ADT/ArrayRef.h:13:
<br>            In file included from /home/svozniuk/llvm/llvm-src/include/llvm/ADT/SmallVector.h:17:
<br>            /home/svozniuk/llvm/llvm-src/include/llvm/Support/type_traits.h:20:10: fatal error: 'utility' file not found
<br>            #include <utility>
<br>                 ^
<br>            1 error generated.
<br>            make[1]: *** [/home/svozniuk/llvm/llvm-build/lib/Support/Release+Asserts/APFloat.o] Error 1
<br> <br> <br> <br>    5. Checkout clang to llvm-src-clang/tools and build LLVM this way. LLVM Configuration script finishes
<br>       with no errors. LLVM builds successfully. VMKit configuration script finishes with no errors.
<br>       Building VMKit produces an error (segmentation fault)
<br>        ~/llvm/llvm-build-clang$ ../llvm-src-clang/configure --enable-optimized
<br>        ~/llvm/llvm-build-clang$ make     <br>        ~/llvm/vmkit$ ./configure --with-llvmsrc="/home/svozniuk/llvm/llvm-src-clang" --with-llvmobj="/home/svozniuk/llvm/llvm-build-clang" --with-gnu-classpath-glibj="/home/svozniuk/llvm/classpath-0.97.2" --with-gnu-classpath-libs="/home/svozniuk/llvm/classpath-0.97.2/lib" --with-mmtk-plan=org.mmtk.plan.copyms.CopyMS
<br>        ~/llvm/vmkit$ make
<br> <br> <br>            llvm[2]: Building Release+Asserts Bytecode Module MMTKAlloc.bc
<br>            make[2]: Leaving directory `/home/svozniuk/llvm/vmkit/mmtk/mmtk-alloc'
<br>            make[2]: Entering directory `/home/svozniuk/llvm/vmkit/mmtk/java'
<br>            make[2]: buildfile: Command not found
<br>            make[2]: [all] Error 127 (ignored)
<br>            llvm[2]: Building Release+Asserts mmtk-vmkit.jar all
<br>            Can't find zip file.
<br>            0  opt             0x000000000093449f
<br>            1  opt             0x0000000000934fda
<br>            2  libpthread.so.0 0x00002b867fa26c60
<br>            3  MMTKMagic.so    0x00002b8680977769
<br>            4  opt             0x00000000008d0177 llvm::MPPassManager::runOnModule(llvm::Module&) + 535
<br>            5  opt             0x00000000008d02db llvm::PassManagerImpl::run(llvm::Module&) + 187
<br>            6  opt             0x00000000004c4c9f main + 5791
<br>            7  libc.so.6       0x00002b86805faeff __libc_start_main + 255
<br>            8  opt             0x00000000004b4569
<br>            Stack dump:
<br>            0.    Program arguments: /home/svozniuk/llvm/llvm-build-clang/Release+Asserts/bin/opt -load=/home/svozniuk/llvm/vmkit/Release+Asserts/lib/MMTKMagic.so -std-compile-opts -LowerJavaRT -f mmtk-vmkit.bc -o mmtk-vmkit-optimized.bc 
<br>            1.    Running pass 'Remove references to RT' on module 'mmtk-vmkit.bc'.
<br>            make[2]: *** [all] Segmentation fault
<br>            make[2]: Leaving directory `/home/svozniuk/llvm/vmkit/mmtk/java'
<br>            make[1]: *** [all] Error 1
<br>            make[1]: Leaving directory `/home/svozniuk/llvm/vmkit/mmtk'
<br>            make: *** [all] Error 1
<br> <br><br>