Date: Fri, 18 Apr 2014 16:46:22 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: --library-path and friends (was: musl 1.1.0 released) On Thu, Apr 17, 2014 at 10:15:48AM +0200, u-igbb@...ey.se wrote: > On Wed, Apr 16, 2014 at 12:53:52PM -0400, Rich Felker wrote: > > I'm committing a patch based loosely on yours that accepts more forms > > (e.g. --preload=...) and one additional option (--list). Let me know > > if it fails to meet your needs and I can improve it. > > Without having looked at the code yet: > > 1. This is quite certainly just fine. > > My needs are very basic, as long as it accepts "--library-path <somepath>" > which fully overrides LD_LIBRARY_PATH (not resetting it of course) and > --preload with a corresponding semantics, then I am in business and happy. > > --list is welcome! Yes. And it makes it possible to implement ldd as a shell script using ld-musl with --list rather than as a symlink to ld-musl. This is probably better in that it works even if the desired argv does not get passed to ldd. > 2. Not every feature is certainly for good :) > > Frankly I do not see any need for the '=' syntax extention, it probably > costs some extra byte[s] but more importantly once introduced you will > have to keep the extra possibility. I do not think (didn't check for a I'm not sure whether glibc's dynamic linker supports it, but the processing of the form with --option=arg is part of the "standard" getopt_long processing for long options, and I felt like it should be supported here too for the sake of consistency if we're accepting long options that look like getopt_long options. It's just one extra (trivial) line of source anyway. Rich
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