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From: Jim Wilson <jimw@sifive.com>
To: William Tambe <tambewilliam@gmail.com>
Cc: gcc-help <gcc-help@gcc.gnu.org>
Subject: Re: How to customize GCC builtin search paths
Date: Mon, 13 Apr 2020 13:44:55 -0700	[thread overview]
Message-ID: <CAFyWVab7XmS6AUjdAoYzTvSbpuPx-C9W8qcAhUY1SHBD2Zf1rQ@mail.gmail.com> (raw)
In-Reply-To: <CAF8i9mNpK_7iWndtGTxk_-9L61=2rB_Yvv37fi9Ph9vXC0QXiQ@mail.gmail.com>

On Sun, Apr 12, 2020 at 9:06 AM William Tambe <tambewilliam@gmail.com> wrote:
> I can hardly find examples on how to use startfile_prefixes. Currently
> when running gcc as follow:
> arch-elf-gcc -v test.c
>
> I get the following excerpt showing how gcc looks for includes:

You have the source code.  You can find a lot of info by using grep to
search for obvious things, like /usr/include for instance, and then
follow the code to see where it takes you.

But include files are handled differently than startfiles.  This is a
different question than the previous one.  See cppdefault.c.  It isn't
a good idea to try to change this.  Stuff will break.  See also
include_prefixes in gcc.c.

Jim

  reply	other threads:[~2020-04-13 20:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-10  2:52 William Tambe
2020-04-10 17:15 ` Jim Wilson
2020-04-12 16:06   ` William Tambe
2020-04-13 20:44     ` Jim Wilson [this message]
2020-04-13 20:56       ` Jonathan Wakely

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