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authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.4.0/config/unwind_ipinfo.m4
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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Check in gcc sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'gcc-4.4.0/config/unwind_ipinfo.m4')
-rw-r--r--gcc-4.4.0/config/unwind_ipinfo.m437
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc-4.4.0/config/unwind_ipinfo.m4 b/gcc-4.4.0/config/unwind_ipinfo.m4
new file mode 100644
index 000000000..efc79903b
--- /dev/null
+++ b/gcc-4.4.0/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
+])