[mateusz_slowikowski]

I'm trying to compile a new class, however I'm having problems with the compilation, these are some of the errors:

OpenFOAM.out
/usr/lib/../lib64/crt1.o(.text+0x21): In function `_start':
: undefined reference to `main'
Make/linux64Gcc4DPOpt/populationBalanceModel.o(.text._ZNK4Foam14Geometri cFieldId NS_12fvPatchFieldENS_7volMeshEE4typeEv[Foam::GeometricField<double,>::type() const]+0x3): In function `Foam::GeometricField<double,>::type() const':
: undefined reference to `Foam::GeometricField<double,>::typeName'
Make/linux64Gcc4DPOpt/populationBalanceModel.o(.text._ZNK4Foam16Dimensio nedField IdNS_7volMeshEE4typeEv[Foam::DimensionedField<double,>::type() const]+0x3): In function `Foam::DimensionedField<double,>::type() const':
: undefined reference to `Foam::DimensionedField<double,>::typeName'
Make/linux64Gcc4DPOpt/populationBalanceModel.o(.text._ZNK4Foam12fvPatchF ieldIdE4 typeEv[Foam::fvPatchField<double>::type() const]+0x3): In function `Foam::fvPatchField<double>::type() const':
: undefined reference to `Foam::fvPatchField<double>::typeName'

My ".H" file has the following includes:

#ifndef populationBalanceModel_H
#define populationBalanceModel_H

#include "IOdictionary.H"
#include "dimensionedScalar.H"
#include "volFields.H"
#include "surfaceFields.H"

and my ".C" file has the following includes:

#include "populationBalanceModel.H"
#include "addToRunTimeSelectionTable.H"
#include "dimensionedScalar.H"
#include "fixedGradientFvPatchFields.H"
#include "surfaceFields.H"
#include "fvc.H"
#include "fvCFD.H"

This is the ~/make/options file:

EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/OpenFOAM/lnInclude

LIB_LIBS =

and this is the ~/make/files file:

populationBalanceModel/populationBalanceModel.C

LIB = $(WM_PROJECT_USER_DIR)/lib/linux64Gcc4DPOpt/libpopulationBalanceModel


any advice on the undefined references?