[Dune] how to force a rebuild from scratch with cmake build system ?

[Benedikt Oswald]

Hello Christoph,

thanks, forcing the rebuild now works.

However, I realise cmake picks up the wrong compilers, such as:

---- using default flags $CONFIGURE_FLAGS from /Users/oswald/gitwork/nanofactory/vulcain-pure-dune/vulcain.os.imac.lsprag.gcc481.cmake.opts -----
 cmake -DCMAKE_MODULE_PATH=""  -DUSE_MPI=ON -DCMAKE_CXX_FLAGS="-O2" -DBOOST_ROOT="/Users/oswald/extlib/boost/1.55.0/gcc/4.8.1" -DCMAKE_PREFIX_PATH="/Users/oswald/extlib/boost/1.55.0/gcc/4.8.1;/Users/oswald/extlib/alugrid/1.96/openmpi/1.6.5/gcc/4.8.1;/Users/oswald/extlib/metis/5.1.0/gcc/4.8.1;/Users/oswald/extlib/parmetis/4.0.3/openmpi/1.6.5/gcc/4.8.1" "/Users/oswald/gitwork/nanofactory/vulcain-pure-dune/dune-common"
-- The C compiler identification is Clang 5.1.0
-- The CXX compiler identification is Clang 5.1.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- The Fortran compiler identification is GNU
-- Check for working Fortran compiler: /Users/oswald/extlib/gcc/4.8.1/gcc/4.8.1/bin/gfortran
-- Check for working Fortran compiler: /Users/oswald/extlib/gcc/4.8.1/gcc/4.8.1/bin/gfortran  -- works
-- Detecting Fortran compiler ABI info
-- Detecting Fortran compiler ABI info - done
-- Checking whether /Users/oswald/extlib/gcc/4.8.1/gcc/4.8.1/bin/gfortran supports Fortran 90
-- Checking whether /Users/oswald/extlib/gcc/4.8.1/gcc/4.8.1/bin/gfortran supports Fortran 90 -- yes
-- Checking to see if CXX compiler accepts flag -std=c++11
-- Checking to see if CXX compiler accepts flag -std=c++11 - yes


I do not understand why it picks up /usr/bin/c++ ?

which is the cmake variable to specify the right compilers ? I use:


CMAKE_FLAGS="-DCMAKE_CXX_FLAGS=\"-O2\" -DBOOST_ROOT=\"$HOME/extlib/boost/1.55.0/gcc/4.8.1\"   -DCMAKE_PREFIX_PATH=\"$HOME/extlib/boost/1.55.0/gcc/4.8.1;$HOME/extlib/alugrid/1.52/openmpi/1.6.5/gcc/4.8.1;$HOME/extlib/metis/5.1.0/gcc/4.8.1;$HOME/extlib/parmetis/4.0.3/openmpi/1.6.5/gcc/4.8.1\" " 

CONFIGURE_FLAGS="--enable-parallel --enable-experimental-grid-extensions --enable-shared --enable-static”

Thanks, Benedikt





--------------------------------------------------------------------------------------------------------------------------------------------------------------
Dr. sc. techn. Benedikt Oswald - first engineer - LSPR AG - phone - +41 43 366 90 74
Technoparkstrasse 1, CH-8005 Zürich, benedikt.oswald at lspr.ch - labor vincit omnia improbus
--------------------------------------------------------------------------------------------------------------------------------------------------------------

On 24 Apr 2014, at 15:34, Christoph Grüninger <christoph.grueninger at iws.uni-stuttgart.de> wrote:

> Hi Benedikt,
> just remove the folder build-cmake/ below your module to force a
> rebuild. You can simply delete the build-cmake/CMakeCache.txt, but I go
> for sure and get rid of everything.
> 
> To run in parallel, I added the following line to my opts file:
> CONFIGURE_FLAGS="--enable-parallel"
> 
> I promise to finish the started very basic documentation about the CMake
> build system.
> 
> Bye
> Christoph
> 
> -- 
> ... as Sir Cyril Hinshelwood has observed ...fluid dynamicists
> were divided into hydraulic engineers who observed things that
> could not be explained and mathematicians who explained things
> that could not be observed.                 -- James Lighthill
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> CMWR 2014: 10th - 13th June 2014 in Stuttgart
>         Please visit www.cmwr14.de
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