Enforce C11 via Makefile, explicate POSIX dependencies in source files.

[plomrogue] / src / client / interface_conf.c

diff --git a/src/client/interface_conf.c b/src/client/interface_conf.c
index 57dff9a50f06a6b823e1b0583dad088468d0e722..c668376a44c42f63e7df11399634ff63afb3e454 100644 (file)
--- a/src/client/interface_conf.c
+++ b/src/client/interface_conf.c
@@ -1,5 +1,6 @@
 /* src/client/interface_conf.c */
 
+#define _POSIX_C_SOURCE 2 /* getopt(), optarg */
 #include "interface_conf.h"
 #include <ncurses.h> /* delwin() */
 #include <stdint.h> /* uint8_t, uint32_t */