Add the compat calls for renamed symbols so that configure scripts

can find them. sigprocmask being the most problematic.

RISC-V doesn't need the compat syscalls, but seeing them fail in
ktrace is helpful.

lib/libc/compat/arch/riscv/Makefile.inc

@@ -1 +1,3 @@
-# $NetBSD: Makefile.inc,v 1.1 2014/09/19 17:36:25 matt Exp $
+# $NetBSD: Makefile.inc,v 1.2 2023/05/19 06:50:07 skrll Exp $
+
+.include "${COMPATARCHDIR}/sys/Makefile.inc"

lib/libc/compat/arch/riscv/sys/Makefile.inc

@@ -0,0 +1,12 @@
+#	$NetBSD: Makefile.inc,v 1.1 2023/05/19 06:50:07 skrll Exp $
+
+SRCS+= \
+    compat_Ovfork.S \
+    compat_msgctl.S \
+    compat_quotactl.S \
+    compat_shmctl.S \
+    compat_sigaction.S \
+    compat_sigpending.S \
+    compat_sigprocmask.S \
+    compat_sigreturn.S \
+    compat_sigsuspend.S \

lib/libc/compat/arch/riscv/sys/compat_Ovfork.S

@@ -0,0 +1,14 @@
+/*	$NetBSD: compat_Ovfork.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(vfork, \
+    "warning: reference to compatibility vfork(); include <unistd.h> for correct reference")
+
+PSEUDO(vfork,__vfork14)
+

lib/libc/compat/arch/riscv/sys/compat_msgctl.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_msgctl.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(msgctl, \
+    "warning: reference to compatibility msgctl(); include <sys/msg.h> for correct reference")
+
+PSEUDO(msgctl,compat_14_msgctl)

lib/libc/compat/arch/riscv/sys/compat_quotactl.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_quotactl.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(quotactl, \
+    "warning: reference to compatibility quotactl(); include <sys/quota.h> for correct reference")
+
+PSEUDO(quotactl,compat_50_quotactl)

lib/libc/compat/arch/riscv/sys/compat_shmctl.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_shmctl.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(shmctl, \
+    "warning: reference to compatibility shmctl(); include <sys/shm.h> for correct reference")
+
+PSEUDO(shmctl,compat_14_shmctl)

lib/libc/compat/arch/riscv/sys/compat_sigaction.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_sigaction.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(sigaction, \
+    "warning: reference to compatibility sigaction(); include <signal.h> for correct reference")
+
+PSEUDO(sigaction,compat_13_sigaction13)

lib/libc/compat/arch/riscv/sys/compat_sigpending.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_sigpending.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(sigpending, \
+    "warning: reference to compatibility sigpending(); include <signal.h> for correct reference")
+
+PSEUDO(sigpending,compat_13_sigpending13)

lib/libc/compat/arch/riscv/sys/compat_sigprocmask.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_sigprocmask.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(sigprocmask, \
+    "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference")
+
+PSEUDO(sigprocmask,compat_13_sigprocmask13)

lib/libc/compat/arch/riscv/sys/compat_sigreturn.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_sigreturn.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(sigreturn, \
+    "warning: reference to compatibility sigreturn()")
+
+PSEUDO(sigreturn,compat_13_sigreturn13)

lib/libc/compat/arch/riscv/sys/compat_sigsuspend.S

@@ -0,0 +1,13 @@
+/*	$NetBSD: compat_sigsuspend.S,v 1.1 2023/05/19 06:50:07 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, 19th May, 2023.
+ */
+
+#include "SYS.h"
+
+WARN_REFERENCES(sigsuspend, \
+    "warning: reference to compatibility sigsuspend(); include <signal.h> for correct reference")
+
+PSEUDO(sigsuspend,compat_13_sigsuspend13)