Request for adding gfortran

[bug-fixed]

Hi, @jlinoff , thank you very much for these scripts! It helps me a lot and saves me a lot of time!

If convenient, could you please add the gfortran compilation in the scripts? Thanks!

Another request is the python compilation. Because the boost-python would depend on python, could you please add a python-2.7 compilation before that? so that the compiled boost-python would only depend on the compiled python, not the old one or the system one.

[jlinoff]

That is a great idea.

I will update some of the more recent scripts to support language choices by providing the --enable-languages command line option or an environment variable like the deprecated LANGUAGES environment variable for the configuration script.

Meanwhile, you can enable FORTRAN by modifying the bld.sh script following these steps:

1. find the line in the script that contains --enable-languages='c,c++,go'
2. change it to --enable-languages='c,c++,go,fortran'

Please note that the following language targets are available:

    all        All languages.
               This is the same as --enable-languages='c,c++,fortran,go,objc,java'
               on platforms that support all of them.

    c          C. This is required as far as I can tell.

    c++      C++.

    fortran  FORTRAN.

    go        GO.

    java      Java.

    objc      Objective C.

[bug-fixed]

@jlinoff , that's great! Thank you very much for developing these scripts!

[bug-fixed]

@jlinoff , I've used your latest build script [https://github.com/jlinoff/gcc-4.9.2-boost-1.57] to compile the gcc-4.9.2 with gfortran. As you suggested, I modified the --enable-languages, but it seems we should also add the --disable-multilib into the compilation settings, or the compilation of gfortran might have problems. I have this comment as I have faced this problem when used your former build script to build gfortran once before. I'm not very sure which version of gcc I built, but I remember that I should download gcc-common-*.tar.gz to build the gfortran successfully. And since then, when I want to compile the gfortran, I always add the --disable-multilib.

[jlinoff]

Thanks again. You are not the first person to mention --disable-multilib. I will test that option in my environments and add it with the other changes.