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From: Vladimir V <vv.os.swe@gmail.com>
Date: Mon, 7 Dec 2020 18:32:02 +0100
Message-ID: <CA+=iAirn_xc2EhxBdwwjr_Ak2bmS4eVHpxoMVR5xKCXghQOH9A@mail.gmail.com>
Subject: Problem building libstdc++ for the avr target
To: libstdc++@gcc.gnu.org
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Dear libstdc++ developers,

I have recently experimented with building 'hosted' variant of the
libstdc++ for the avr target.
Practically, it looks like, after minor extension of the avr-libc, it can
be built.
Unfortunately, as a temporary workaround I had to disable dlopen test in
the configure script as I encountered the error:

'checking for shl_load... configure: error: Link tests are not allowed
after GCC_NO_EXECUTABLES'

while building with '--with-avrlibc' flag. The issue is described in
https://gcc.gnu.org/legacy-ml/gcc/2008-03/msg00515.html
and was resolved for the newlib. The fix was not applied for the avr-libc
targets although the rationale behind the solution
seems to be applicable there as well. I would like to ask what do you think
about extending the scope of the solution to work
with avr-libc based builds as well?

Thank you for considering my question.

With best regards,
Vladimir