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From: "howarth at nitro dot med.uc.edu" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/55061] libbacktrace build fails during bootstrap on powerpc-apple-darwin9
Date: Thu, 25 Oct 2012 14:12:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55061

--- Comment #14 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-10-25 14:11:38 UTC ---
Can we enhance the section in config/unwind_ipinfo.m4...

    # Darwin before version 9 does not have _Unwind_GetIPInfo.
    changequote(,)
    case ${target} in
      *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;;
      *) have_unwind_getipinfo=yes ;;
    esac
    changequote([,])

with a new case instance of *-*-darwin9* that tests..

             AC_TRY_COMPILE([,[_Unwind_GetIPInfo();].
             [gcc_cv_getipinfo=yes],
             [gcc_cv_getipinfo=no])

in order to decided if  _Unwind_GetIPInfo is available?