[PATCH] gnu: Add GCC front ends for Fortran, Go, Objective C, and Objective C++.

[Nikita Karetnikov]

>> If you want to test any of the front-ends, don’t forget to set
>> LIBRARY_PATH and LD_LIBRARY_PATH, like so:
>>
>> $ export 
>> LIBRARY_PATH=/nix/store/wmaxqx3p658v2yqjv00mss2shvn23h7a-glibc-2.18/lib
>> $ export 
>> LD_LIBRARY_PATH=/nix/store/kvhg0fszagsx5y80sq79bkmb7yqvjfmd-gcc-go-4.8.1/lib

> I guess that’s unnecessary when using ‘ld-wrapper’.

I know nothing about it.  Could you elaborate?

I tested each front end using the “hello, world” program.  Is it enough?

It was necessary to set some environment variables.  An example for
Fortran:

LIBRARY_PATH=/nix/var/nix/profiles/default/guix-profile/lib
LD_LIBRARY_PATH=/nix/store/jh5shyx6pg7m0dibdgl202pj7ryp5nvq-gfortran-4.8.2/lib
CPATH=/nix/var/nix/profiles/default/guix-profile/include
PATH=/nix/var/nix/profiles/default/guix-profile/bin:$PATH

May I push this patch to ‘master’?

0001-gnu-Add-GCC-front-ends-for-Fortran-Go-Objective-C-an.patch
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