-int opts_debug = 0;
-int opts_memchk = 0;
-int opts_compiler = COMPILER_GMQCC;
-int opts_darkplaces_stringtablebug = 0;
-int opts_omit_nullcode = 0;
+bool opts_debug = false;
+bool opts_memchk = false;
+bool opts_darkplaces_stringtablebug = false;
+bool opts_omit_nullcode = false;
+int opts_compiler = COMPILER_GMQCC;