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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c++
Subject: Re: Trying to be generic with the linker (ld instead of g++)
Date: Thu, 22 Aug 2019 04:47:29 -0700
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Frederick Gotham <cauldwell.thomas@gmail.com> writes:

> I've been doing web searches all morning to try solve this so I'm
> here now as last resort.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Typically if we want to combine C and C++ in one program, we can
> do three steps:
>
> gcc -c *.c
> g++ -c *.cpp
> g++ -o prog *.o
>
> So we use 'gcc' to compile the C code.  Then we use 'g++' to compile
> the C++ code.  Finally we use 'g++' a second time to link the object
> files together into one executable file.
>
> I'm trying to be as generic as possible here in the final step (i.e.
> linking), and so I want to replace the second use of 'g++' with 'ld',
> so something like:
>
> gcc -c *.c
> g++ -c *.o
> ld -o prog *.o
>
> [...]

Forgive me if this is a dumb question.  Is there some reason
you have to use gcc in the first step?  How about doing this
instead:

    g++ -x c   -c *.c
    g++ -x c++ -c *.cpp
    g++        -o prog *.o

Substituting clang for g++ should also work here.  Disclaimer:  I
haven't verified anything beyond confirming that both g++ and
clang accept the -x c and -x c++ options.