1.1 --- a/configure	Thu Dec 11 23:29:12 2008 +0000
     1.2 +++ b/configure	Wed Jan 07 06:01:33 2009 +0000
     1.3 @@ -6745,6 +6745,94 @@
     1.4  
     1.5  
     1.6  
     1.7 +{ $as_echo "$as_me:$LINENO: checking if we have a working __builtin_frame_address()" >&5
     1.8 +$as_echo_n "checking if we have a working __builtin_frame_address()... " >&6; };
     1.9 +if test "$cross_compiling" = yes; then
    1.10 +  { { $as_echo "$as_me:$LINENO: error: cannot run test program while cross compiling
    1.11 +See \`config.log' for more details." >&5
    1.12 +$as_echo "$as_me: error: cannot run test program while cross compiling
    1.13 +See \`config.log' for more details." >&2;}
    1.14 +   { (exit 1); exit 1; }; }
    1.15 +else
    1.16 +  cat >conftest.$ac_ext <<_ACEOF
    1.17 +
    1.18 +  /* confdefs.h.  */
    1.19 +_ACEOF
    1.20 +cat confdefs.h >>conftest.$ac_ext
    1.21 +cat >>conftest.$ac_ext <<_ACEOF
    1.22 +/* end confdefs.h.  */
    1.23 +
    1.24 +void * __attribute__((noinline)) first_arg( void *x, void *y ) { return x; }
    1.25 +int __attribute__((noinline)) foo( int arg, void *exc )
    1.26 +{
    1.27 +    if( arg < 2 ) {
    1.28 +        *(((void **)__builtin_frame_address(0))+1) = exc;
    1.29 +    }
    1.30 +    return 0;
    1.31 +}
    1.32 +
    1.33 +int main(int argc, char *argv[])
    1.34 +{
    1.35 +   goto *first_arg(&&start, &&except);
    1.36 +
    1.37 +start:
    1.38 +   return foo( argc, &&except ) + 1;
    1.39 +
    1.40 +except:
    1.41 +   return 0;
    1.42 +}
    1.43 +_ACEOF
    1.44 +rm -f conftest$ac_exeext
    1.45 +if { (ac_try="$ac_link"
    1.46 +case "(($ac_try" in
    1.47 +  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
    1.48 +  *) ac_try_echo=$ac_try;;
    1.49 +esac
    1.50 +eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
    1.51 +$as_echo "$ac_try_echo") >&5
    1.52 +  (eval "$ac_link") 2>&5
    1.53 +  ac_status=$?
    1.54 +  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
    1.55 +  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
    1.56 +  { (case "(($ac_try" in
    1.57 +  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
    1.58 +  *) ac_try_echo=$ac_try;;
    1.59 +esac
    1.60 +eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
    1.61 +$as_echo "$ac_try_echo") >&5
    1.62 +  (eval "$ac_try") 2>&5
    1.63 +  ac_status=$?
    1.64 +  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
    1.65 +  (exit $ac_status); }; }; then
    1.66 +
    1.67 +   { $as_echo "$as_me:$LINENO: result: yes" >&5
    1.68 +$as_echo "yes" >&6; }
    1.69 +
    1.70 +
    1.71 +cat >>confdefs.h <<\_ACEOF
    1.72 +#define HAVE_FRAME_ADDRESS 1
    1.73 +_ACEOF
    1.74 +
    1.75 +
    1.76 +else
    1.77 +  $as_echo "$as_me: program exited with status $ac_status" >&5
    1.78 +$as_echo "$as_me: failed program was:" >&5
    1.79 +sed 's/^/| /' conftest.$ac_ext >&5
    1.80 +
    1.81 +( exit $ac_status )
    1.82 +
    1.83 +   { $as_echo "$as_me:$LINENO: result: no" >&5
    1.84 +$as_echo "no" >&6; }
    1.85 +    { $as_echo "$as_me:$LINENO: WARNING: Memory exceptions will be slow" >&5
    1.86 +$as_echo "$as_me: WARNING: Memory exceptions will be slow" >&2;}
    1.87 +fi
    1.88 +rm -rf conftest.dSYM
    1.89 +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
    1.90 +fi
    1.91 +
    1.92 +
    1.93 +
    1.94 +
    1.95  
    1.96  
    1.97  lxdream_save_cppflags="$CPPFLAGS"