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Date: Tue, 7 Jun 2016 10:48:52 +0100
From: Philip Deegan <philip.deegan@...il.com>
To: Rich Felker <dalias@...c.org>
Cc: musl@...ts.openwall.com
Subject: Re: make install permissions
Hi Rich,
Thanks for getting back to me.
I understand it might become platform dependent with a hard coded path,
thanks for the tip.
I believe I have run into the C++ header problem you mentioned as I get an
error "__GLIBC_PREREQ", it seems precompiled for glibc.
I'll try to make a script for building g++/libstdc++ with musl rather than
libc. Might be easier to have a standalone version of gcc. I'll forward on
the script if you like.
Cheers
On Mon, Jun 6, 2016 at 11:27 PM, Rich Felker <dalias@...c.org> wrote:
> On Mon, Jun 06, 2016 at 09:54:02PM +0100, Philip Deegan wrote:
> > Hi,
> >
> > I'm trying out musl and I noticed that even when "--prefix" is used for
> > "configure", "make install" still tries to put a symlink in "/lib".
> >
> > Is this intentional?
>
> Yes. --syslibdir is not affected by --prefix because it's part of the
> ABI. You can opt to override it at build time if you want to install
> on the host as non-root, but as a result your binaries linked against
> musl will contain a hard-coded path that's specific to your
> installation and won't be easily usable on systems other than your
> own.
>
> If you just want to stage an installation for a chroot or cross root,
> don't make the staging location part of the prefix but instead run
> "make install DESTIR=...".
>
> > I rather keep my system directories clean and isolate my dev stuff.
> >
> > Thanks
> >
> > PS. Is there a "musl-g++.specs" floating around anywhere?
>
> In principle the same recipe as musl-gcc works for g++, just replacing
> the name fo the command it invokes, but the c++ headers (or maybe the
> precompiled versions thereof?) from a glibc-based host gcc encode lots
> of glibc-specific assumptions, and badly break at compile time.
> Linking to the libstdc++.a that was originally built against glibc
> works okay though. If you can come up with a solution for the headers
> problem, we can add a g++ wrapper, but I don't have the time or
> interest to spend trying to figure that out myself.
>
> Rich
>
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