$OpenBSD$

OpenBSD build defines

Index: xterm.h
--- xterm.h.orig
+++ xterm.h
@@ -158,9 +158,11 @@
 #endif
 
 #if defined(__OpenBSD__)
+#define USE_UTMP_SETGID True
 #define DEFDELETE_DEL True
 #define DEF_BACKARO_ERASE True
 #define DEF_INITIAL_ERASE True
+#define SIG_ATOMIC_T volatile sig_atomic_t
 #endif
 
 #if defined(__SCO__) || defined(__UNIXWARE__)