1dnl
2dnl Check whether _Unwind_GetIPInfo is available without doing a link
3dnl test so we can use this with libstdc++-v3 and libjava.  Need to
4dnl use $target to set defaults because automatic checking is not possible
5dnl without a link test (and maybe even with a link test).
6dnl
7
8AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [
9  AC_ARG_WITH(system-libunwind,
10  [  --with-system-libunwind use installed libunwind])
11  # If system-libunwind was not specifically set, pick a default setting.
12  if test x$with_system_libunwind = x; then
13    case ${target} in
14      ia64-*-hpux*) with_system_libunwind=yes ;;
15      *) with_system_libunwind=no ;;
16    esac
17  fi
18  # Based on system-libunwind and target, do we have ipinfo?
19  if  test x$with_system_libunwind = xyes; then
20    case ${target} in
21      ia64-*-*) have_unwind_getipinfo=no ;;
22      *) have_unwind_getipinfo=yes ;;
23    esac
24  else
25    # Darwin before version 9 does not have _Unwind_GetIPInfo.
26    changequote(,)
27    case ${target} in
28      *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;;
29      *) have_unwind_getipinfo=yes ;;
30    esac
31    changequote([,])
32  fi
33
34  if test x$have_unwind_getipinfo = xyes; then
35    AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.])
36  fi
37])
38