port: build on OpenBSD

Tested on OpenBSD amd64.

* socket.c: Add <sys/socket.h>.  Test for AI_V4MAPPED and
AI_ALL being defined.

* sysif.c: Add <stdarg.h>.  Test for EMULTIHOP, ENODATA,
ENOLINK, ENOSR, ENOSTR, EPIPE and ETIME.

* termios.c: est for OFILL, VTDLY, VT0 and VT1.

3 files changed, 28 insertions, 0 deletions

diff --git a/socket.c b/socket.c
index 482f1b2b..3893d07d 100644
--- a/socket.c
+++ b/socket.c
@@ -35,6 +35,7 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <sys/socket.h>
 #include <sys/un.h>
 #include <netdb.h>
 #include "config.h"
@@ -1156,8 +1157,12 @@ void sock_load_init(void)
   reg_varl(intern(lit("ai-passive"), user_package), num_fast(AI_PASSIVE));
   reg_varl(intern(lit("ai-canonname"), user_package), num_fast(AI_CANONNAME));
   reg_varl(intern(lit("ai-numerichost"), user_package), num_fast(AI_NUMERICHOST));
+#ifdef AI_V4MAPPED
   reg_varl(intern(lit("ai-v4mapped"), user_package), num_fast(AI_V4MAPPED));
+#endif
+#ifdef AI_ALL
   reg_varl(intern(lit("ai-all"), user_package), num_fast(AI_ALL));
+#endif
   reg_varl(intern(lit("ai-addrconfig"), user_package), num_fast(AI_ADDRCONFIG));
   reg_varl(intern(lit("ai-numericserv"), user_package), num_fast(AI_NUMERICSERV));
 #endif
diff --git a/sysif.c b/sysif.c
index 85ff8a50..8329c8e8 100644
--- a/sysif.c
+++ b/sysif.c
@@ -26,6 +26,7 @@
  */
 
 #define UTF8_DECL_OPENDIR
+#include <stdarg.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -2553,25 +2554,35 @@ void sysif_init(void)
   reg_varl(intern(lit("emfile"), user_package), num_fast(EMFILE));
   reg_varl(intern(lit("emlink"), user_package), num_fast(EMLINK));
   reg_varl(intern(lit("emsgsize"), user_package), num_fast(EMSGSIZE));
+#ifdef EMULTIHOP
   reg_varl(intern(lit("emultihop"), user_package), num_fast(EMULTIHOP));
+#endif
   reg_varl(intern(lit("enametoolong"), user_package), num_fast(ENAMETOOLONG));
   reg_varl(intern(lit("enetdown"), user_package), num_fast(ENETDOWN));
   reg_varl(intern(lit("enetreset"), user_package), num_fast(ENETRESET));
   reg_varl(intern(lit("enetunreach"), user_package), num_fast(ENETUNREACH));
   reg_varl(intern(lit("enfile"), user_package), num_fast(ENFILE));
   reg_varl(intern(lit("enobufs"), user_package), num_fast(ENOBUFS));
+#ifdef ENODATA
   reg_varl(intern(lit("enodata"), user_package), num_fast(ENODATA));
+#endif
   reg_varl(intern(lit("enodev"), user_package), num_fast(ENODEV));
   reg_varl(intern(lit("enoent"), user_package), num_fast(ENOENT));
   reg_varl(intern(lit("enoexec"), user_package), num_fast(ENOEXEC));
   reg_varl(intern(lit("enolck"), user_package), num_fast(ENOLCK));
+#ifdef ENOLINK
   reg_varl(intern(lit("enolink"), user_package), num_fast(ENOLINK));
+#endif
   reg_varl(intern(lit("enomem"), user_package), num_fast(ENOMEM));
   reg_varl(intern(lit("enomsg"), user_package), num_fast(ENOMSG));
   reg_varl(intern(lit("enoprotoopt"), user_package), num_fast(ENOPROTOOPT));
   reg_varl(intern(lit("enospc"), user_package), num_fast(ENOSPC));
+#ifdef ENOSR
   reg_varl(intern(lit("enosr"), user_package), num_fast(ENOSR));
+#endif
+#ifdef ENOSTR
   reg_varl(intern(lit("enostr"), user_package), num_fast(ENOSTR));
+#endif
   reg_varl(intern(lit("enosys"), user_package), num_fast(ENOSYS));
   reg_varl(intern(lit("enotconn"), user_package), num_fast(ENOTCONN));
   reg_varl(intern(lit("enotdir"), user_package), num_fast(ENOTDIR));
@@ -2589,7 +2600,9 @@ void sysif_init(void)
   reg_varl(intern(lit("eownerdead"), user_package), num_fast(EOWNERDEAD));
 #endif
   reg_varl(intern(lit("eperm"), user_package), num_fast(EPERM));
+#ifdef EPIPE
   reg_varl(intern(lit("epipe"), user_package), num_fast(EPIPE));
+#endif
   reg_varl(intern(lit("eproto"), user_package), num_fast(EPROTO));
   reg_varl(intern(lit("eprotonosupport"), user_package), num_fast(EPROTONOSUPPORT));
   reg_varl(intern(lit("eprototype"), user_package), num_fast(EPROTOTYPE));
@@ -2598,7 +2611,9 @@ void sysif_init(void)
   reg_varl(intern(lit("espipe"), user_package), num_fast(ESPIPE));
   reg_varl(intern(lit("esrch"), user_package), num_fast(ESRCH));
   reg_varl(intern(lit("estale"), user_package), num_fast(ESTALE));
+#ifdef ETIME
   reg_varl(intern(lit("etime"), user_package), num_fast(ETIME));
+#endif
   reg_varl(intern(lit("etimedout"), user_package), num_fast(ETIMEDOUT));
   reg_varl(intern(lit("etxtbsy"), user_package), num_fast(ETXTBSY));
   reg_varl(intern(lit("ewouldblock"), user_package), num_fast(EWOULDBLOCK));
diff --git a/termios.c b/termios.c
index a116791d..ffed0f1a 100644
--- a/termios.c
+++ b/termios.c
@@ -460,13 +460,21 @@ void termios_init(void)
   reg_varl(intern(lit("ocrnl"), user_package), num_fast(OCRNL));
   reg_varl(intern(lit("onocr"), user_package), num_fast(ONOCR));
   reg_varl(intern(lit("onlret"), user_package), num_fast(ONLRET));
+#ifdef OFILL
   reg_varl(intern(lit("ofill"), user_package), num_fast(OFILL));
+#endif
 #ifdef OFDEL
   reg_varl(intern(lit("ofdel"), user_package), num_fast(OFDEL));
 #endif
+#ifdef VTDLY
   reg_varl(intern(lit("vtdly"), user_package), num_fast(VTDLY));
+#endif
+#ifdef VT0
   reg_varl(intern(lit("vt0"), user_package), num_fast(VT0));
+#endif
+#ifdef VT1
   reg_varl(intern(lit("vt1"), user_package), num_fast(VT1));
+#endif
 #ifdef NLDLY
   reg_varl(intern(lit("nldly"), user_package), num_fast(NLDLY));
   reg_varl(intern(lit("nl0"), user_package), num_fast(NL0));