--- main/asterisk.exports.in.orig	2017-10-13 17:46:56 UTC
+++ main/asterisk.exports.in
@@ -70,6 +70,8 @@
 
 		*/
 		LINKER_SYMBOL_PREFIX_IO_stdin_used;
+		LINKER_SYMBOL_PREFIX__progname;
+		LINKER_SYMBOL_PREFIXenviron;
 	local:
 		*;
 };