From 0f1f27b13238fa76621a1081cabaf56af37277d5 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Mon, 4 Jul 2011 16:17:12 +1000
Subject: [PATCH] Temporarily add fallback null path for backtrace

---
 Makefile.am        |  3 ++-
 backtrace_null.cpp | 17 +++++++++++++++++
 configure.ac       |  6 ++++--
 3 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 backtrace_null.cpp

diff --git a/Makefile.am b/Makefile.am
index 2ad46df5..3d6057cc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -51,9 +51,10 @@ UTIL_FILES   =	\
 
 if HAVE_EXECINFO
 UTIL_FILES += backtrace_execinfo.cpp
+else
+UTIL_FILES += backtrace_null.cpp
 endif
 
-
 CLEANFILES = json.cpp version.cpp ip.cpp
 EXTRA_DIST = json.cpp.rl version.cpp.rl ip.cpp.rl
 
diff --git a/backtrace_null.cpp b/backtrace_null.cpp
new file mode 100644
index 00000000..8b18330d
--- /dev/null
+++ b/backtrace_null.cpp
@@ -0,0 +1,17 @@
+#include "backtrace.hpp"
+
+#include <iostream>
+
+using namespace std;
+
+
+debug::backtrace::backtrace (void):
+    m_frames (DEFAULT_DEPTH) 
+{ ; }
+
+
+ostream&
+operator <<(ostream &os, const debug::backtrace &rhs) {
+    os << "null backtrace";
+    return os;
+}
diff --git a/configure.ac b/configure.ac
index e04b0f88..2fc0f547 100644
--- a/configure.ac
+++ b/configure.ac
@@ -85,12 +85,14 @@ AC_C_BIGENDIAN
 
 ##
 ## platform features
+COMMON_CFLAGS="$COMMON_CFLAGS -D_GNU_SOURCE"
+
 AC_FUNC_MMAP
 
-AC_CHECK_HEADER([execinfo.h], [break], [AC_MSG_ERROR([Missing backtrace support])])
-
+AC_CHECK_HEADER([execinfo.h], [break])
 AM_CONDITIONAL([HAVE_EXECINFO], [test x$ac_cv_header_execinfo_h = "xyes"])
 
+
 ##
 ## Debug features
 if test "x$cv_debugging" = "xyes"; then