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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /config/unwind_ipinfo.m4 | |
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Diffstat (limited to 'config/unwind_ipinfo.m4')
| -rw-r--r-- | config/unwind_ipinfo.m4 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/config/unwind_ipinfo.m4 b/config/unwind_ipinfo.m4 new file mode 100644 index 000000000..efc79903b --- /dev/null +++ b/config/unwind_ipinfo.m4 @@ -0,0 +1,37 @@ +dnl +dnl Check whether _Unwind_GetIPInfo is available without doing a link +dnl test so we can use this with libstdc++-v3 and libjava. Need to +dnl use $target to set defaults because automatic checking is not possible +dnl without a link test (and maybe even with a link test). +dnl + +AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [ + AC_ARG_WITH(system-libunwind, + [ --with-system-libunwind use installed libunwind]) + # If system-libunwind was not specifically set, pick a default setting. + if test x$with_system_libunwind = x; then + case ${target} in + ia64-*-hpux*) with_system_libunwind=yes ;; + *) with_system_libunwind=no ;; + esac + fi + # Based on system-libunwind and target, do we have ipinfo? + if test x$with_system_libunwind = xyes; then + case ${target} in + ia64-*-*) have_unwind_getipinfo=no ;; + *) have_unwind_getipinfo=yes ;; + esac + else + # Darwin before version 9 does not have _Unwind_GetIPInfo. + changequote(,) + case ${target} in + *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;; + *) have_unwind_getipinfo=yes ;; + esac + changequote([,]) + fi + + if test x$have_unwind_getipinfo = xyes; then + AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.]) + fi +]) |