Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/libjava/configure.in,v
retrieving revision 1.114.2.12
diff -u -r1.114.2.12 configure.in
--- configure.in	11 Apr 2002 22:20:43 -0000	1.114.2.12
+++ configure.in	18 Apr 2002 00:24:09 -0000
@@ -494,8 +494,19 @@
    AC_CHECK_FUNCS(nl_langinfo setlocale)
    AC_CHECK_FUNCS(inet_aton inet_addr, break)
    AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
-   AC_CHECK_FUNCS(backtrace fork execvp pipe sigaction)
+   AC_CHECK_FUNCS(fork execvp pipe sigaction)
    AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h) 
+   AC_CHECK_FUNC(backtrace, [
+     case "$host" in
+       ia64-*-linux*)
+	 # Has broken backtrace()
+	 ;;
+       *)
+         AC_DEFINE(HAVE_BACKTRACE)
+	 ;;
+     esac
+   ])
+
    AC_CHECK_LIB(dl, dladdr, [
      AC_DEFINE(HAVE_DLADDR)])
    AC_CHECK_FILES(/proc/self/exe, [