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Re: lazy symbol binding failed - on MacOSX 10.7 and 10.8


From: Peter Johansson
Subject: Re: lazy symbol binding failed - on MacOSX 10.7 and 10.8
Date: Wed, 20 Mar 2013 20:23:39 +1000
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20

Hi again,

FWIW, problem solved if we linked with LDFLAGS=-Wl,-flat_namespace. I noticed that 'libtool.m4' has some code to enforce flat_namespace under certain circumstances on darwin (see below). Would it make sense to switch to flat_namespace in even more cases, since the default seems problematic, or are there strong reasons to prefer default in the general case?

Cheers,
Peter

    case $host_os in
    rhapsody* | darwin1.[[012]])
      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
    darwin1.*)
_lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
    darwin*) # darwin 5.x on
      # if running on 10.5 or later, the deployment target defaults
      # to the OS version, if on x86, and 10.4, the deployment
      # target defaults to 10.4. Don't you love it?
      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
    10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
      _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
    10.[[012]]*)
_lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
    10.*)
      _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
      esac
    ;;
  esac


--
Peter Johansson




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