I have also encountered this problem when I first compiled deal.II 6.2.0 on Red Hat Linux 9.0 using GCC 3.x version. Later, I decided to use Ubuntu 8.04 with GCC 4.2.4 version to compile deal.II 6.2.1. No problem occurred this time. So I'm using Ubuntu now.
Victor 在2009-06-12，"Michael Rapson" <[email protected]> 写道： >Hi all, > >I am once again installing deal.II on unusual systems and am running >into unexpected difficulties. > >When compiling on a cluster that offers pathscale compilers (which use >a GCC 3.3.3 front end) I run into an error: >In file included from source/fe/fe_system.cc:21: >/CHPC/home/mrapson/lib/gcc/deal.II-6.2.1/deal.II/include/fe/fe_system.h:85: >error: syntax error before `{' token >/CHPC/home/mrapson/lib/gcc/deal.II-6.2.1/deal.II/include/fe/fe_system.h:692: >error: use of enum `enum dealii::CellSimilarity::Similarity' without >previous declaration >/CHPC/home/mrapson/lib/gcc/deal.II-6.2.1/deal.II/include/fe/fe_system.h:692: >error: template declaration of `enum > > dealii::/CHPC/home/mrapson/lib/gcc/deal.II-6.2.1/deal.II/include/fe/fe_update_flags.h' > >I have looked for where 'enum dealii::CellSimilarity::Similarity' is >defined but cannot find it. Doxygen is however able to find it and >provide a reference to the possible values that it can take on. Do >some compilers allow enums to be used without been declared or am I >missing something? > >On another system which uses gcc 4.1.2 and mpich2 the above problem >does not occur, however the Epetra_MpiComm.h header file is needed for >liblac.so and it does not seem to be copied to the trilinos install >path by default. I have copied it to the trilinos install directory by >hand (along with the other Epetra_Mpi... header files which it >references) and the library then compiles. This doesn't seem to be a >good solution however, it has worked previously for me, but on the >most recent compile the linking even step-1 fails with an error >related to liblac and the constructors in Epetra_MpiComm.h. (I am >currently recompiling the library with static linking so can't get the >exact error message right now.) I see that other Epetra headers are >copied by the trilinos install (for example Epetra_Map.h) and are >tested for by the deal.II configure script. > >Final comment on compiling the library, when using mpich2 I need to >set my CXXFLAGS=-DMPICH_IGNORE_CXX_SEEK to avoid a bug in the MPI 2 >standard (SEEK_SET, SEEK_END and SEEK_CUR defined in two places). > > > >Off the topic of compiler issues all together, I have written a class >called MonitorNode which I find useful and I am wondering if it would >be more widely useful in the library. I haven't seen any classes which >do something similar. Basically the idea is to provide a time plot of >specific points in the mesh. The constructor takes the dof_handler and >FiniteElement as parameters. The user specifies a number of Point ><dim> in mesh that they want to plot and the class finds the closest >actual mesh nodes to the requested Point and works out its global dof >index. For each time step the user passes the class as many solution >and post processed VECTORS as they want to store and the class saves >data from the VECTORS at the desired grid locations. Once the >simulation is complete the user can export the plots to gnuplot >(currently). >This is important functionality for me because the time plot of >variables at specific points is very similar to the physical readings >I will compare to. I am doing a large number of time steps and putting >out a full .vtk solution for each time step is not possible, but I do >still need to be able to see the time function at important points. As >I say, I have code that does this but it will probably need some >touching up to get it in a form to include in the library. > >Any ideas about the compilation problems are most appreciated. > >Thanks, >Michael >_______________________________________________ >dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
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