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From: xaxazak xak <xaxazak@gmail.com>
Date: Thu, 7 May 2020 20:44:37 +1200
Message-ID: <CAOZ3qUM4o9_mbRsTepyc1qP6KGaUXLVWOZBHB3U0Sj_p3dE-hg@mail.gmail.com>
Subject: Building a compiler that honors symbolic links.
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When I manually build GCC (via SVN trunk) or LLVM (via GIT trunk) I
use a symbolic link (/make/) to my development folder as part of the
destination path.

Both GCC and LLVM extract the =E2=80=9Cphysical=E2=80=9D target location of=
 this
symlink, so their default include paths etc use the physical location,
which starts with (/media/<HOME>/<HDD>/...) instead of just
(/make/...).

This is annoying for a few reasons:

1. I=E2=80=99m capturing the header information (via -H), and I want to avo=
id
having <HOME> and <HDD> included in this list.
2. <HDD> can change.

I can choose to not use the default include paths (eg -nostdinc++
etc), and just explicitly set them when I invoke clang, but that makes
build setup a lot more complex.

Is there any way I can build GCC (and LLVM / clang if you know) so
that it remembers my symlinks instead of expanding them?


(NOTE: Also asked for LLVM, here:
https://llvm.discourse.group/t/maintaining-symlinks-when-installing/955)


Thanks,
Simon.