Date: Thu, 4 Aug 2016 12:47:12 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: relative link between libc.so and the dynamic linker On Thu, Aug 04, 2016 at 12:49:57AM -0700, Khem Raj wrote: > > > On Aug 3, 2016, at 1:52 PM, Sidney Manning <sidneym@...eaurora.org> wrote: > > > > I'd like to suggest making the symbolic link between libc.so and > > ld-musl-<target>.so.1 relative rather than absolute. A relative path makes > > movement between systems easier, in particular when one is copying cross > > binaries to into a runtime environment. > > > > diff --git a/tools/install.sh b/tools/install.sh > > index d913b60..1c102f5 100755 > > --- a/tools/install.sh > > +++ b/tools/install.sh > > @@ -48,7 +48,7 @@ trap 'rm -f "$tmp"' EXIT INT QUIT TERM HUP > > umask 077 > > > > if test "$symlink" ; then > > -ln -s "$1" "$tmp" > > +ln -s -r "$1" "$tmp" > > else > > cat < "$1" > "$tmp" > > chmod "$mode" "$tmp" > > > > > > > > The final result would look something like this: > > ld-musl-x86_64.so.1 -> ../usr/lib/libc.so > > > > Rather than: > > ld-musl-x86_64.so.1 -> /tmp/musl/install/usr/lib/libc.so > > Does something like this help you > > https://github.com/kraj/musl/commit/c0b1bd4e6bb60b8167e1f4a40beccff7f8871691 This assumes that one level of .. gets you from $(libdir) to /. For a normal setup with libdir=/usr/lib that's not going to be the case, though of course lots of people these days like omitting /usr or making it a symlink to /, in which case it will work. Rich
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