+if test x$USE_MAINTAINER_MODE = xyes
+then
+ # Check for doxygen when in maintainer mode since dist* targets fail
+ # without it
+ AC_PATH_PROG(DOXYGEN,doxygen,`which doxygen`)
+ if test x$DOXYGEN = x ; then
+ AC_MSG_ERROR([doxygen is mandatory in maintainer mode])
+ fi
+fi
+
+# Can we extract really usable backtraces? (also need the popen function)
+AC_PATH_PROG(ADDR2LINE, addr2line)
+if test x$ADDR2LINE != x ; then
+ AC_DEFINE_UNQUOTED(ADDR2LINE,"$ADDR2LINE",[Path to the addr2line tool])
+fi
+