Hi all,

I solved my problem, but i don't know if it's the right way to do it. Libs.private is used in case of static linking. So I added: execute_process ( COMMAND pkg-config PETSc --libs --static OUTPUT_VARIABLE STATIC_LIBS)
string(STRIP ${STATIC_LIBS} STATIC_LIBS)
message("Libs static : " ${STATIC_LIBS})

And it works. Is it the right way to do it ?

Thanks,

Best regards,

Yann


Le 11/03/2020 à 11:59, Yann Jobic a écrit :
Hi all,

I'm trying to create a correct CMakeLists.txt in order to compile a petsc program.
I can compile my code, but i cannot link it.

I have this link command :
/local/lib/openmpi/gcc8/4.0.3/bin/mpicc -g  -rdynamic CMakeFiles/Test1.dir/src/dvm_dg1D_qff_2dV.c.o CMakeFiles/Test1.dir/src/computeHermCoeff.c.o CMakeFiles/Test1.dir/src/dg1DFuncs.c.o  -o Test1 -L/local/lib/petsc/3.12/p4/gcc_8.3.1/openmpi-gcc-opti/lib -lpetscts -lpetscsnes -lpetscksp -lpetscdm -lpetscmat -lpetscvec -lpetscsys /bin/ld: /local/lib/petsc/3.12/p4/gcc_8.3.1/openmpi-gcc-opti/lib/libpetscsys.a(dlimpl.o): référence au symbole non défini « dlclose@@GLIBC_2.2.5 » //usr/lib64/libdl.so.2 : erreur lors de l'ajout de symboles : DSO manquant dans la ligne de commande

But if i add Libs.private to this line in a terminal to test the command, it works: mpicc   -rdynamic CMakeFiles/Test1.dir/src/dvm_dg1D_qff_2dV.c.o CMakeFiles/Test1.dir/src/computeHermCoeff.c.o CMakeFiles/Test1.dir/src/dg1DFuncs.c.o  -o Test1 -L/local/lib/petsc/3.12/p4/gcc_8.3.1/openmpi-gcc-opti/lib -lpetscts -lpetscsnes -lpetscksp -lpetscdm -lpetscmat -lpetscvec -lpetscsys -L/local/lib/petsc/3.12/p4/gcc_8.3.1/openmpi-gcc-opti/lib -L/local/lib/openmpi/gcc8/4.0.3/lib -L/usr/lib/gcc/x86_64-redhat-linux/8 -lHYPRE -lcmumps -ldmumps -lsmumps -lzmumps -lmumps_common -lpord -lscalapack -lumfpack -lklu -lcholmod -lbtf -lccolamd -lcolamd -lcamd -lamd -lsuitesparseconfig -lsuperlu -lsuperlu_dist -lml -lp4est -lsc -lflapack -lfblas -lptesmumps -lptscotchparmetis -lptscotch -lptscotcherr -lesmumps -lscotch -lscotcherr -lnetcdf -lhdf5hl_fortran -lhdf5_fortran -lhdf5_hl -lhdf5 -lparmetis -lmetis -ltriangle -lm -lz -lsz -lX11 -lstdc++ -ldl -lmpi_usempif08 -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi -lgfortran -lm -lgfortran -lm -lgcc_s -lquadmath -lpthread -lrt -lquadmath -lstdc++ -ldl

So I should be using Libs.private in the link command, but i don't know how to tell cmake to do so.

What is the correct line that i have to add to CMakeLists.txt in order to have Libs and Libs.private from the PETSc.pc file ?
What I am doing wrong ?

Thanks,

Best regards,

Yann

PS : My CMakeLists.txt so far :
cmake_minimum_required(VERSION 2.8.11)

list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules)

set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

# set root of location to find PETSc configuration
set(PETSC $ENV{PETSC_DIR}/$ENV{PETSC_ARCH})
set(ENV{PKG_CONFIG_PATH} ${PETSC}/lib/pkgconfig)

# Determine PETSc compilers
execute_process ( COMMAND pkg-config PETSc --variable=ccompiler COMMAND tr -d '\n' OUTPUT_VARIABLE C_COMPILER)
SET(CMAKE_C_COMPILER ${C_COMPILER})
  execute_process ( COMMAND pkg-config PETSc --variable=cxxcompiler COMMAND tr -d '\n' OUTPUT_VARIABLE CXX_COMPILER)
if (CXX_COMPILER)
   SET(CMAKE_CXX_COMPILER ${CXX_COMPILER})
endif (CXX_COMPILER)
execute_process ( COMMAND pkg-config PETSc --variable=fcompiler COMMAND tr -d '\n' OUTPUT_VARIABLE FORTRAN_COMPILER)
if (FORTRAN_COMPILER)
   SET(CMAKE_Fortran_COMPILER ${FORTRAN_COMPILER})
   enable_language(Fortran)
endif (FORTRAN_COMPILER)

find_package(PkgConfig REQUIRED)
pkg_search_module(PETSC REQUIRED PETSc)

set(SOURCES src/dvm_dg1D_qff_2dV.c src/computeHermCoeff.c src/dg1DFuncs.c)
include_directories(${PETSC_INCLUDE_DIRS})
include_directories(includes)

add_executable(Test1 ${SOURCES})
target_link_libraries(Test1 ${PETSC_LDFLAGS})

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