Re: getfem compilation problems on mac os catalina

[Michel Fournié]

Dear Esin,

I install getfem recently on the same type of environment (OS X  + Homebrew).

Indeed, the classical installation process fails.

One issue can be to install older compiler. In my case g++-mp-9 … run under Catalina.

You can control the choice in the configuration using 

CXX=« /usr/local/bin/g++-mp-9" \

CC=« /usr/local/bin/gcc-mp-9" \

FC=« /usr/local/bin/gfortran-mp-9 » \

In my case the biggest difficulty was to link Mumps. 

I never arrive to use the lib coming from Homebrew (or Macport). 

To overcome this difficulty, 

1) I construct mumps-lib from the source code with the same compiler used for getfem. 

In your case g++-mp-9 must be used (gcc-10 doesn’t run).

With different compilers and mixed lib (Laplace from Homebrew and Lapack from CommandLineTools …. )

There are some risks to have "unresolved symbol » in the compilation (you have to try).

2) Even if I copy (or symbolic link) the mumps-lib into the default directory /usr/local/lib 

The configuration step fails to find it (even if I try to force my PATH variable in my environment, even if I try to 

give the good PATH into getfem-configuration : MUMPS_LIBS, —with-mumps-include-dir …).

My conclusion :

I preferred to force the link using only LIBS flag (it is sufficient). I use something like that (config used under BigSur)

./configure LDFLAGS=-L/usr/local/lib 'LIBS=-L/your-path/MUMPS_5.4.0/PORD/lib -lpord -L/your-path/MUMPS_5.4.0/lib -lmumps_common -ldmumps -lsmumps -lzmumps -lcmumps -larpack -lqhullstatic -L/your-path/GETFEM++/MUMPS_5.4.0/libseq -lmpiseq -lmetis -lgfortran' --disable-matlab --with-pic --enable-python 

Even if the output informations returned by the configuration step specifies that Mumps is not find, the install is correct. 

(libmetis,libgfortran are into /usr/local/lib).

Best regards. 

Michel.

Le 6 mai 2021 à 22:42, Esin B Sozer <esinbengisu@gmail.com> a écrit :

Hello,

I have been trying to compile getfem 5.4.1 for a week now and I am out of ideas what to do, having read everything I can in the documentation and email list. I am a beginner in the command line usage and other developer environments. My experience for many years have been using MATLAB for any coding needs, so I know the problem I face must be very basic.

I used homebrew to update my g++ compiler to the latest version (located at /usr/local/bin/) and went through the steps of installing m4, automake,libtool, and python tools. I also did alias g++ g++-10. This is what I get when I run ./configure in the source file directory:

"checking whether the compiler recognizes the partial specialization syntax... yes

you are compiling GetFEM on a x86_64-apple-darwin19.6.0

Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/c++/4.2.1

Using the GNU g++ compiler version

checking whether g++ accepts -O3... no

checking whether g++ accepts -fmessage-length=0... no

checking whether g++ accepts -fvisibility-inlines-hidden... no

checking whether g++ accepts -ftemplate-depth-100... no

checking whether g++ accepts -std=c++14... no

checking whether g++ accepts -std=c++0x... no

configure: error: g++ do not support option -std=c++14. Update g++ to at least release 4.9"

It looks like there is some prefix configuration I get I don't know how to modify, but I am not sure if that is the problem. 

I appreciate any help!!

Thank  you

Esin