+# should malicious code be compiled (code used for testing with malicious peers)
+enable_malicious=0
+AC_MSG_CHECKING(whether to compile malicious code)
+AC_ARG_ENABLE(malicious,
+ [AS_HELP_STRING([--enable-malicious],
+ [enable compiling malicious code (only for developers for testing)])],
+ [enable_malicious=1],
+ [enable_malicious=0])
+AC_MSG_RESULT($enable_malicious)
+AM_CONDITIONAL([HAVE_MALICIOUS], [test "x$enable_malicious" = "x1"])
+AC_DEFINE_UNQUOTED([HAVE_MALICIOUS], $enable_malicious, [Compile malicious code])
+