Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c++ > #67869

Re: Trying to be generic with the linker (ld instead of g++)

Show all headers | View raw

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.

Back to comp.lang.c++ | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Trying to be generic with the linker (ld instead of g++) Frederick Gotham <cauldwell.thomas@gmail.com> - 2019-08-20 04:09 -0700
  Re: Trying to be generic with the linker (ld instead of g++) Bart <bc@freeuk.com> - 2019-08-20 12:25 +0100
    Re: Trying to be generic with the linker (ld instead of g++) Frederick Gotham <cauldwell.thomas@gmail.com> - 2019-08-20 04:34 -0700
      Re: Trying to be generic with the linker (ld instead of g++) Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2019-08-21 01:07 +0100
    Re: Trying to be generic with the linker (ld instead of g++) Keith Thompson <kst-u@mib.org> - 2019-08-20 15:50 -0700
      Re: Trying to be generic with the linker (ld instead of g++) Bart <bc@freeuk.com> - 2019-08-21 00:27 +0100
  Re: Trying to be generic with the linker (ld instead of g++) Ralf Fassel <ralfixx@gmx.de> - 2019-08-20 14:05 +0200
  Re: Trying to be generic with the linker (ld instead of g++) David Brown <david.brown@hesbynett.no> - 2019-08-20 14:10 +0200
  Re: Trying to be generic with the linker (ld instead of g++) Keith Thompson <kst-u@mib.org> - 2019-08-20 15:58 -0700
  Re: Trying to be generic with the linker (ld instead of g++) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-22 04:47 -0700
    Don't extensions still work? (Was: Trying to be generic with the linker (ld instead of g++)) gazelle@shell.xmission.com (Kenny McCormack) - 2019-08-22 12:12 +0000
      Re: Don't extensions still work? (Was: Trying to be generic with the linker (ld instead of g++)) David Brown <david.brown@hesbynett.no> - 2019-08-22 15:08 +0200
      Re: Don't extensions still work? (Was: Trying to be generic with the linker (ld instead of g++)) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-22 12:57 -0700

csiph-web