Re: [PATCH 2/7] gdb, gdbserver: require gcc-style dependency generation, drop the depcomp fallback

[Simon Marchi <simark@simark.ca>]

On 2026-09-01 12:32, Tom Tromey wrote:
>>>>>> "Simon" == Simon Marchi <simon.marchi@efficios.com> writes:
> 
> Simon> gdb/Makefile.in and gdbserver/Makefile.in have similar code to do manual
> Simon> gcc3-style dependency tracking, or fallback to the depcomp tool for
> Simon> other dependency tracking modes.  I believe that in this day and age, we
> Simon> can assume that all compilers we support know about gcc3-style
> Simon> dependency tracking.
> 
> Simon> Obviously, gcc and clang both know about it.  The other compilers I am
> Simon> aware of (I don't even know if they can build GDB) are Intel icc and IBM
> Simon> XL, and they both appear to have known about it for a while.
> 
> I wonder if the Windows or Solaris compilers work.

If by Windows you mean MSVC, I would be really surprised.

I did not know about the Sun Studio compiler, but I would assume that
people juste use gcc to build gdb on Solaris.  Rainer, is that true?

> Anyway, I'm fine with this.  I tend to doubt anybody uses anything else,
> on the theory that if they did, we'd probably have seen patches to work
> around problems.  I suppose we can revert this or just ask people to
> write wrapper scripts for any compiler not supporting this feature.
> 
> The depcomp stuff was more important for C and the olden times when
> other compilers were in use.
> 
> Approved-By: Tom Tromey <tom@tromey.com>

Thanks,

Simon