clarify which global options are enabled by default

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@12897 65c4cc65-6c06-0410-ace0-fbb531ad65f3

asterisk.c

@@ -152,7 +152,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  */
 /*! @{ */
 
-struct ast_flags ast_options = { AST_OPT_FLAG_TRANSCODE_VIA_SLIN };
+struct ast_flags ast_options = { AST_DEFAULT_OPTIONS };
 
 int option_verbose = 0;				/*!< Verbosity level */
 int option_debug = 0;				/*!< Debug level */

include/asterisk/options.h

@@ -74,6 +74,9 @@ enum ast_option_flags {
 	AST_OPT_END_CDR_BEFORE_H_EXTEN = (1 << 19)
 };
 
+/*! These are the options that set by default when Asterisk starts */
+#define AST_DEFAULT_OPTIONS AST_OPT_FLAG_TRANSCODE_VIA_SLIN
+
 #define ast_opt_exec_includes		ast_test_flag(&ast_options, AST_OPT_FLAG_EXEC_INCLUDES)
 #define ast_opt_no_fork			ast_test_flag(&ast_options, AST_OPT_FLAG_NO_FORK)
 #define ast_opt_quiet			ast_test_flag(&ast_options, AST_OPT_FLAG_QUIET)