Hi, I tried today to build
 

Hi,

I tried today to build the OF-dev version with gcc-4.3 (on 64-bit RHEL5). (I am naively following a suggestion to use the newest release -- maybe I am too optimistic).

I did manage to build paraview-2.4.4 (it required tweaks in include statements in three files -- I can send those, but to whome?).

But OF is a different story.

For many files the errors are related to missing declarations of memset, strlen, abs, abort, strcopy.

I tried setting CXXFLAGS to -fpermissive in the .OpenFOAM.../bashrc file (followd by . ~/.bashrc).

But that does not seem to have made it into the build environment: I do not see it on the g++ statements.

echo $CXXFLAGS does show it:
> set | grep CXX
CXX=g++
CXXFLAGS='-m64 -fPIC -fpermissive'

So, again, how to pass that flag to g++.

Thanks,

Mirko

Sorry about paraview problems
 

Sorry about paraview problems - it is a bit weird that you had to edit the files by hand. It always built for me without much trouble... Sounds like you are missing some basic c headers

If you wish to add more flags to the C++ compiler for OpenFOAM, go to:

OpenFOAM-1.4.1-dev/wmake/rules

and look for your machine - mine is

echo $WM_ARCH$WM_COMPILER

linux64Gcc

Go in there and in the file c++ add the options to your heart's content http://www.cfd-online.com/OpenFOAM_D...part/happy.gif

Enjoy,

Hrv

I think the problem is using g
 

I think the problem is using gcc-4.3 instead of 4.2

The paraview modifications were minor - otherwise I would not have been able to fix them:

DICOMAppHelper.cxx -- had to #include <string.h>
DICOMFile.cxx -- had to replace #include <string> with #include <string.h>
DICOMParser.cxx -- same as DICOMFile.cxx

I found the c++ rules file and added -fpermissive, but that did not help with OF compilation.

I will go back to the gcc-4.2 compiler. I was able to compile OF with that.

Thanks,

Mirko

Hello Mirko, Looks to me yo
 

Hello Mirko,

Looks to me your installation of gcc-4.3 is incomplete because you should not have to replace #include <string> with #include <string.h>.

How did you install gcc-4.3 on your system?

On your Linux system, do you have any libstdc++ devel packages installed for gcc-4.3?

For instance, what is the output of the following command on your system:

rpm -qa | grep std

You should see something that looks like :

libstdc++43-devel-something

Martin

Martin, I downloaded gcc-4.
 

Martin,

I downloaded gcc-4.3 from the gnu web site and installed it in OF/linux64. Here is what I found there:

> cd linux64/gcc-4.3.0/
> find . -name "libstdc*"
./share/locale/fr/LC_MESSAGES/libstdc++.mo
./share/locale/de/LC_MESSAGES/libstdc++.mo
./lib64/libstdc++.so
./lib64/libstdc++.so.6.0.10
./lib64/libstdc++.so.6
./lib64/libstdc++.la
./lib64/libstdc++.a

Does this tell you anything? I am not a c/c++ programmer. I use prehistoric languages: fortran and lisp :-)

Mirko

Hi Mirko, So you have compi
 

Hi Mirko,

So you have compiled and installed gcc 4.3 yourself... good!

How did you compile it?

How about the file "string"?

cd linux64/gcc-4.3.0/
find . -name "string"

Finally, just to be sure, what is the output of the command:

which g++

Martin

Martin, I compiled it as Hr
 

Martin,

I compiled it as Hrvoje suggested in his notes.

I checked the installation by running OF-dev/bin/foamInstallationTest. It found the correct compiler (

As for :string":

> find . -name "string*"
./lib/gcc/x86_64-unknown-linux-gnu/4.3.0/include-fixed/bits/string2.h
./lib/gcc/x86_64-unknown-linux-gnu/4.3.0/include/ssp/string.h
./include/c++/4.3.0/bits/stringfwd.h
./include/c++/4.3.0/string
./include/c++/4.3.0/ext/pb_ds/detail/trie_policy/string_trie_e_access_traits_imp .hpp
./include/c++/4.3.0/debug/string

As I said, I am now rebuilding the same OF/paraview sources with 4.2.2

Mirko

I ran across this thread while
 

I ran across this thread while trying to build OpenFOAM. I saw the same errors as Mirko using gcc 4.3.0: declaration/usage problems with abs, strlen, memset and abort.

I went back to gcc 4.2.1 as suggested by Mirko. I downloaded the source from GNU and installed it the same way I had 4.3.0 (using the same gmp (4.2.2) and mpfr (2.3.1) libraries, binutils (2.17) etc).

After a couple other hiccups (problems with READLINELINK and some missing X11 files) I was able to get OF to compile properly (I think).

Like Mirko I suspect that there might be an issue with gcc 4.3.0. Has anyone succeeded with this version? If so, can you offer a resolution? If not, maybe an experienced user/developer should take a look.

In case you are interested, here is the first error I see in the screen output during Allwmake:

/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/stringI.H: In member function 'size_t Foam::string::hash::operator()(const Foam::string&, size_t) const':
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/stringI.H:169: error: '::abs' has not been declared

Here is the last set of errors before the build finally dies:

/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H: In static member function 'static void Foam::IOobject::writeBanner(Stream&)':
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H:39: error: there are no arguments to 'memset' that depend on a template parameter, so a declaration of 'memset' must be available
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H:39: error: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H:40: error: there are no arguments to 'strlen' that depend on a template parameter, so a declaration of 'strlen' must be available
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H: In static member function 'static void Foam::IOobject::writeLogBanner(Stream&)':
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H:63: error: there are no arguments to 'memset' that depend on a template parameter, so a declaration of 'memset' must be available
/home/chyczth/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude/IOobjectI.H:64: error: there are no arguments to 'strlen' that depend on a template parameter, so a declaration of 'strlen' must be available
make[2]: *** [Make/linuxGccDPOpt/engineSwirl.o] Error 1

I know very little C/C++ so I don't have more than a superficial understanding of these errors.

Tom